Renderoc CF constructive solutions2.imimg.com/data2/EE/DT/MY-3845120/renderoc.pdf · 2019. 12....

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constructive solutionsRenderoc® CF

Single part, non shrink, cementitious, crack filler forplaster, masonry and concrete

Uses

Renderoc CF is used for filling cracks on plaster, masonryand concrete substrates.

AdvantagesSingle component - Easy to use

Versatile - Can be used for cracks in exposed conditionson plaster, masonry or concrete upto 20mm width

Non sagging - Can be used for horizontal, vertical andoverhead applications

Good adhesion - Effective bonding with substrate

Non Shrink - Shrinkage cracking eliminated

Hydrophobic - enhanced waterproofing property

Description

Renderoc CF is a crack sealing/filling cementitious materialin powder form. It is easy to apply and can be finished orsmoothened off with a putty blade or a damp sponge. It setsquickly on application and can be over coated with commonpaints / coatings.

Properties

Colour White / grey

Pot life 30 min

Compressive strength 18 N/mm2 in 7 days and(ASTMC109) 20 N/mm2 in 28 days

Fresh wet density 1.95 g/cc

W/p Ratio 0.23 by weight

Mix proportions by volume 1 part water : 3 parts ofpowder

Minimum applicationtemperature 100C

Application instructions

Surface Preparation

The cracks to be sealed shall be saw cut or chiselled to forma ‘V’ groove of approximately of 6mm x 6mm. The groovesshall be cleaned to remove all the loose particles, dust, etc.

The groove shall be sprinkled with clean water before applyingthe sealing mortar.

Mixing

Renderoc CF shall be mixed with water adopting w/p ratio0.23 by weight or a mix porportion of 1 part of water to 3.0parts of Renderoc CF, by volume. Thorough mixing shall becarried out till a smooth, homogenous paste is obtained.

Application

The mixed paste is filled into the groove by gloved hand andthe surface finished using a trowel. This is continued till thefull length of crack is sealed.

Curing

Curing is necessary only when groove size exceeds 6mmwidth or in areas exposed to UV.

Cleaning

Tools may be cleaned with clean water as Renderoc CF is acement based product.

Limitations

Renderoc CF crack sealer/filler cannot be used for movingcracks and for crack width greater than 20mm.

Estimating

Packaging

Renderoc CF is supplied in 1, 5 & 25 kg packs.

Renderoc® CF

INDIA/0457/B

Important note :Fosroc products are guaranteed against defective materials and manufacture and are sold subjectto its standard terms and conditions of sale, copies of which may be obtained on request. WhilstFosroc endeavours to ensure that any advice, recommendation specification or information it maygive is accurate and correct, it cannot, because it has no direct or continuous control over whereor how its products are applied, accept any liability either directly or indirectly arising from theuse of its products whether or not in accordance with any advice, specification, recommendationor information given by it.

telephone fax e-mail

++91 80-2334 3188 ++91 80-2334 3178 [email protected]

Fosroc Chemicals (India) Pvt. Ltd.Head Office‘Vishnu Chittam’, No. 10, 2nd FloorSirur Park B Street, SeshadripuramBangalore 560020www.fosroc.com

® Denotes the trademark of Fosroc International Limited

Regional OfficesBangalore Mumbai Delhi Kolkata‘Vishnu Chittam’, No.10, 1stFloor 208/209, Persepolis 109-113, 1st Floor, Vikrant Towers P-569, Lake Terrace Extn.Sirur Park B Street, Seshadripuram Sector 17, Vashi 4, Rajendra Place First FloorBangalore 560 020 Navi Mumbai 400 703 New Delhi 110 008 Kolkata 700 029Ph:080-2334 3188 Ph:022-2789 6411/12 Ph:011- 45062000-5 Ph: 033 24650917 / 55343188Fax : 080-23368667 Fax: 022 - 2789 6413 Fax: 011- 45062001 Fax: 033-24650891email: [email protected] email:[email protected] email:[email protected] email:[email protected]

Ahmedabad : (079) 26762799 Ankleshwar :(02646) 220704/224687 Bellary: 09845891690 Bhubaneshwar : (0674) 2521176 Chennai : (044) 24899949/24853383 Chandigarh : (0172) 2639360 Cochin : (0484) 2347465 Coimbatore : (0422) 2472966 Goa : (0832) 09423058696 Guwahati : (0361) 2462866 Hyderabad : (040) 27662324/27662425 Indore : (0731) 4049339 Jaipur : (0141) 2336103 Lucknow :(0522) 2239044 Nagpur: (0712) 2753510/2563242 Visakhapatnam : (0891) 2564850 / 2707607

Coverage

About 30 RM for a V groove crack of 6mm x 6mm for 1 kg.pack. The actual coverage may vary depending on thesubstrate conditions.

Storage

Shelf life

Renderoc CF has a shelf life of 12 months in originalunopened packs if stored in unopened conditions below350C.

Precaution

Health & Safety instructions

Renderoc CF has no health hazards in normal use. Glovesshall be worn while mixing and during application. Splashesof material to the eyes shall be washed off with clean water.In the event of prolonged irritation, medical advice shall besought.

Fire

Renderoc CF is non flammable.

Additional information

Fosroc manufactures a wide range of products specificallydesigned for the repair and refurbishment of damagedreinforced concrete. These include hand placed andtrowellable repair mortars, fluid micro concretes, chemicalresistant epoxy mortars and a comprehensive package ofprotective coatings. In addition, a wide range of complimentaryproducts are available. These include admixtures, jointsealants, waterproofing membranes, grouting, anchoring,and specialised flooring materials.

Separate datasheets are available on these products.

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constructive solutionsRenderoc® CS

Single part, non shrink, cementitious, crack sealer forplaster, masonry and concrete

Uses

Renderoc CS is used for sealing cracks on plaster, masonryand concrete substrates.

AdvantagesSingle component - Easy to use

Versatile - Can be used for plaster, masonry or concrete,can be painted after application

Non sagging - Can be used for horizontal, vertical andoverhead applications

Good adhesion - Effective bonding with substrate

Non Shrink - Shrinkage cracking eliminated

Description

Renderoc CS is a crack sealing cementitious material inpowder form. It is easy to apply and can be finished orsmoothened off with a putty blade or a damp sponge. It setsquickly on application and can be over coated with commonpaints / coatings.

Properties

Colour White

Setting time 15 to 20 min

Compressive strength 22 N/mm2 in 7 days and(ASTMC109) 24 N/mm2 in 28 days

Fresh wet density 1.85 - 1.90g/cc

W/p Ratio 0.36

Mix proportions by volume 1 part water : 2.5 -3 parts ofpowder

Minimum applicationtemperature 100C


Surface Preparation

The cracks to be sealed shall be saw cut or chiselled to forma ‘V’ groove of approximately of 6mm x 6mm. The groovesshall be cleaned to remove all the loose particles, dust, etc.

The groove shall be sprinkled with clean water beforeapplying the sealing mortar.

Mixing

Renderoc CS shall be mixed with water adopting w/p ratio0.36 by weight or a mix porportion of 1 part of water to 2.5 - 3.0parts of Renderoc CS, by volume. Thorough mixing shall becarried out till a smooth, homogenous paste is obtained.

Application

The mixed paste is filled into the groove by gloved hand andthe surface finished using a putty blade. This is continued tillthe full length of crack is sealed.

Curing

Curing is necessary only when groove size exceeds 6mmwidth or in areas exposed to UV.

Cleaning

Tools may be cleaned with clean water as Renderoc CS is acement based product.

Limitations

Renderoc CS crack sealer cannot be used for moving cracksand for crack width greater than 30mm.

Estimating

Packaging

Renderoc CS is supplied in 1kg. packs.

Coverage

30 RM for a V groove crack of 6mm x 6mm. The actual coveragemay vary depending on the substrate conditions.

Storage

Shelf life

Renderoc CS has a shelf life of 12 months in originalunopened packs if stored in unopened conditions below 350C.

Precaution


Renderoc CS has no health hazards in normal use. Glovesshall be worn while mixing and during application. Splashesof material to the eyes shall be washed off with clean water. Inthe event of prolonged irritation, medical advice shall besought.

Renderoc® CS

INDIA/0435/C



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





Fire

Renderoc CS is non flammable.


Fosroc manufactures a wide range of products specificallydesigned for the repair and refurbishment of damagedreinforced concrete. These include hand placed andtrowellable repair mortars, fluid micro concretes, chemicalresistant epoxy mortars and a comprehensive package ofprotective coatings. In addition, a wide range ofcomplimentary products are available. These includeadmixtures, joint sealants, waterproofing membranes,grouting, anchoring, and specialised flooring materials.


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constructive solutionsRenderoc® FC

Single component polymer modified cementitious pinholefiller

Uses

Renderoc FC is designed for application to minorimperfections in concrete and masonry surfaces. It is suitablefor application in the range 0 to 3 mm, and can be used in thefollowing situations :

Filling pinholes prior to overcoating

General reprofiling over large areas, up to 3 mm depth

Fairing coat, in association with other Renderoc mortars

Advantages

Cost effective - no independent primer necessary

Time saving - curing not necessary

High performance - excellent bond to the substrate

Description

Renderoc FC is supplied as a ready to use blend of drypowders which requires only the site addition of clean waterto produce a highly consistent cementitious mortar.

Renderoc FC exhibits excellent thermal compatibility withconcrete, and is fully compatible with other Renderoc*†

mortars and Dekguard*† protective coatings.

Specification

The filler for minor surface imperfections (up to 3 mm depth)shall be Renderoc FC - a single component, polymer modified,cementitious mortar. The material shall be capable of usewithout the need for an independent primer or curing system.

Standards compliance

Renderoc FC has been approved by the British Board ofAgrement, under Certificate No. 98/3461.

Design criteria

Renderoc FC is designed for vertical and overhead use infilling voids up to a depth of 3 mm. It can also be used torender over large areas, from a feather-edge up to 3 mmthickness.

Anti-dusting properties may be imparted upon the mix by theaddition of Nitobond SBR*† to the gauging water. This willalso enhance other performance properties; but should notbe viewed as mandatory for every application. However, wheresubsequent coatings are to be applied, it is important toproduce a dust-free surface upon which to apply the coating.

Properties

The following results were obtained at a liquid:powder ratioof 0.3:1 by weight or 1:3 by volume.

Test method Typical result@ 20oC @ 35oC

Coefficient of thermalexpansion : 7 to 12 x 10-6/°CWorking life (Approx.) : 45 mins 20 minsSetting time (BS 5075) : 60 mins 45 minsFresh wet density : 2000 kg/m3

Compressive strength@ 28 days : 20 N/mm2

Note: Working life and setting time will vary dependent onambient and substrate temperatures.

Typical Application of Renderoc FC

Renderoc® FC

Instructions for use

Preparation

Clean the surface and remove any dust, unsound material,plaster, oil, paint, grease, corrosion deposits or algae. Roughenthe surface to remove any laitence and expose the fineaggregate by light scabbling or grit-blasting.

Oil and grease deposits should be removed by steam cleaning,detergent scrubbing or the use of a proprietary degreaser. Theeffectiveness of decontamination should then be assessedby a pull-off test.

Renderoc repair mortars require no additional preparation priorto the application of Renderoc FC.

The cleaned areas should be blown clean with oil-freecompressed air before continuing. All prepared areas shouldbe thoroughly soaked with clean water immediately prior tothe application of Renderoc FC. Any residual surface watershould be removed prior to commencement.

Mixing - small quantities

Care should be taken to ensure that Renderoc FC is thoroughlymixed. Small quantities (up to 5 kg) can be mixed using asuitable mixing drum or bucket. Greater quantities should bemixed using a forced-action mixer. Mixing in a suitably sizeddrum using an approved spiral paddle attached to an approvedslow speed (400/500 rpm) heavy-duty drill is an acceptablealternative.

If mixing small quantities by hand, Renderoc FC should bevolume-batched. Add 3 volumes of the Renderoc FC powder(loose-filled to excess and struck off level with the top of themeasuring container) to one volume of potable water. Thisshould be mixed vigorously until fully homogeneous.

Mixing - large volumes

For larger volumes, place 6.0 litres of cool, potable water intothe mixer and, with the machine in operation, add one full 20kg bag of Renderoc FC and mix continuously for 3 to 5 minutesuntil fully homogeneous.

Water addition may vary slightly according to both the ambienttemperature and the desired consistency of the mix, but itshould not exceed 6.0 litres

For additional anti-dusting, or enhanced performanceproperties, add 0.6 litres of Nitobond SBR to the gaugingwater until the desired consistency is achieved.

Note: In all cases Renderoc FC powder must be added tothe water.

Application

Apply the mixed Renderoc FC to the prepared substrate, up to3 mm thickness, by steel trowel. It should be applied with theminimum of working and be allowed to partly set before finallytrowelling to a smooth finish.

If a very smooth finish is required, a small amount of watermay be flicked on to the surface of the Renderoc FC with apaint brush prior to final trowelling.

Do not proceed with the application when rainfall is imminentunless in a sheltered or protected situation.

Finishing

Renderoc FC is finished by striking off with a straight edgeand closing with a steel or plastic float. Note that water can bedrawn to the surface if ‘overworking’ with the float occurs, andan unsightly finish may result.

Damp sponges or plastic floats may be used to achieve adesired surface texture, but care should again be taken not tooverwork the surface.

Curing

Curing is not generally required. However, under extremeconditions - high temperatures and drying winds - it may beprudent to use Nitobond AR*† as a curing agent.

Nitobond AR does not require mechanical removal prior toovercoating.

Cleaning

Renderoc FC should be removed from tools, equipment andmixers with clean water immediately after use. Cured materialcan only be removed by mechanical means.

Renderoc® FC

Overcoating with protective/decorative finishes

Renderoc FC may be overcoated with a protective /decorativecoating after about 48 hours, dependent on ambient conditions.Fosroc recommend the use of the Dekguard range of protective,anti-carbonation coatings. These products provide a decorativeand uniform appearance as well as protecting parts of thestructure which have not been repaired and might otherwisebe at risk from the environment.

Limitations

Renderoc FC should not be used when the temperatureis below 5°C and falling.

Do not proceed with the application when rainfall is imminentunless in a sheltered or protected situation.

The product should not be exposed to moving waterduring application or prior to initial set.

If any doubts arise concerning temperature or substrateconditions, consult the local Fosroc office.

High temperature working

It is suggested that, for temperatures above 350C, the followingguidelines are adopted as good working practice:

i Store unmixed materials in a cool (preferably temperaturecontrolled) environment, avoiding exposure to direct sunlight.

ii Keep equipment cool, arranging shade protection ifnecessary. It is especially important to keep cool thosesurfaces of the equipment which will come into direct contactwith the material itself.

iii Try to avoid application during the hottest times of the day,and in direct sunlight.

iv Make sufficient material, plant and labour available to ensurethat application is a continuous process.

Technical support

Fosroc offers a comprehensive technical support service tospecifiers, end users and contractors. It is also able to offeron-site technical assistance, an AutoCAD facility and dedicatedspecification assistance in locations all over the world.

Estimating

SupplyRenderoc FC : 20 kg bagsNitobond SBR : 25 and 200 litre drumsNitobond AR : 1 and 5 litre packs

Coverage and yieldRenderoc FC : 4.0 m2 at 3 mm thick

(approx. 12.0 litres/bag)Nitobond AR : 6 to 8 m2 per litre

Note : Actual coverage of Renderoc FC will be whollydependent upon the general substrate condition. It isrecommended, therefore, that site trials over a typicalarea are carried out to determine actual usage.

Storage

Shelf life

All products have a shelf life of 12 months if kept in a dry storein the original, unopened bags or packs @ 25oC.

Storage conditions

Store in dry conditions in the original, unopened bags or packs.If stored at high temperatures and/or high humidity conditionsthe shelf life may be considerably reduced to 4 to 6 months.

Renderoc® FC

INDIA/0424/B



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





† See separate data sheet

Additional Information

Fosroc manufactures a wide range of complementaryproducts which include :

waterproofing membranes & waterstops

joint sealants & filler boards

cementitious & epoxy grouts

specialised flooring materials

Fosroc additionally offers a comprehensive package ofproducts specifically designed for the repair andrefurbishment of damaged concrete. Fosroc’s ‘SystematicApproach’ to concrete repair features the following :

hand-placed repair mortars

spray grade repair mortars

fluid micro-concretes

chemically resistant epoxy mortars

anti-carbonation/anti-chloride protective coatings

chemical and abrasion resistant coatings

For further information on any of the above, please consultyour local Fosroc office - as below.

Precautions

Health and safety

Renderoc FC contains cement powders which, when mixedor become damp, release alkalis which can be harmful tothe skin. Nitobond AR and Nitobond SBR are slightly alkaline.

During use, avoid inhalation of dust and contact with skinand eyes. Wear suitable protective clothing, gloves, eyeprotection and respiratory protective equipment.

The use of barrier creams can provide additional skinprotection. In case of contact with skin, rinse with plenty ofclean water, then cleanse with soap and water. In case ofcontact with eyes, rinse immediately with plenty of clean waterand seek medical advice. If swallowed, seek medicalattention immediately - do not induce vomiting.

For further information, refer to the appropriate Product MaterialSafety Data Sheet.

Fire

Renderoc FC, Nitobond AR and Nitobond SBR are allnon-flammable products.

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constructive solutionsRenderoc® HB2

Two component high build polymer modifiedcementitious reinstatement mortar

Uses

Renderoc HB2 is a cementitious repair compound which isused to reinstate damaged and deteriorated concrete. Thisproduct is suitable where above average chloride andcarbondioxide resistance is required. Due to the light weightnature of the product Renderoc HB2 is recommended forhigh build repair to reinforced concrete in vertical or overheadsituations where thicknesses of upto 40mm vertically or25mm overhead can be achieved in a single application.

Advantages

In vertical and overhead situations, a high thickness canbe built up.

Extremely low permeability provides maximum protectionagainst carbon dioxide and chlorides.

Excellent bond to the concrete substrate

Shrinkage compensated

Only addition of water at site to be made while mixing thepowder and liquid parts

Contains no chloride admixtures

Description

Renderoc HB2 is a light weight, cementitious, polymermodified repair mortar to provide high build properties aswell as excellent resistance to chloride ions and the diffusionof acidic gases such as carbon dioxide. It contains specialpreblended cements, graded sands and chemical additiveswhich thermally combine to provide a product that hasexcellent compatibility with concrete as well as outstandingwater repellent properties. Renderoc HB2 can be applied inthicknesses from 10mm to 40mm in vertical and 25mm inoverhead situations.

Technical support

Fosroc offers a technical support package to specifiers, endusers and contractors as well as technical on-site assistancein locations all over the country. In addition, Fosroc offers acomprehensive range of high performance, high qualityconstruction products.

Design criteria

Renderoc HB2 is designed for vertical or horizontal applicationuse. It can be applied from a minimum of 5mm to 15mmthickness in vertical sections. Higher thicknesses can beachieved by the use of form work. Thicker sections can bebuilt up in layers. In horizontal locations Renderoc HB2 canbe applied up to 50mm thickness. The material should notbe applied at less than 5mm thickness. Consult Fosroc forfurther information.

Properties

The following results were obtained at a Water:Powder ratioof 0.18 and temperature @ 200C.

Compressive strength (N/mm2)

1 D 3 D 7 D 28 D7 12 16 20

Tensile strength 1.7N/mm2 @ 28 days

Flexural strength 4.5N/mm2 @ 28 days

Water absorption ISAT(BS 1881 Pt.5 1970 )10 min 0.01/ml/m2/Sec2 hours 0.005 ml/m2/Sec

Carbon dioxide barrierEquivalent thickness of concreteat 20mm thickness(Taywood method ) Greater than 100mm

Coefficient of thermal expansion 7 - 12 x 10-6/0C

Setting time ( BS 4551 Pt 14 : 1980)

Initial set 2 hoursFinal set 5 hours

Fresh wet density Approx. 1600kg/m3

dependent on actualconsistency used

Renderoc® HB2

Specification clauses

Preparation

The area to be repaired shall be saw cut 10mm depth andbroken out to a minimum of 10mm to provide a defined repairarea. Feathered edges will not be accepted. It is essentialthat no contaminated or carbonated concrete shall be incontact with the reinforcing bars. The concrete shall be brokenout to expose the full circumference of the reinforcing bars ifthey are within the contaminated area of the substrate.

Priming

The prepared steel be primed with a full coat of Nitozinc Primerwithin 2 hours of cleaning. The concrete substrate shall bethoroughly soaked with clean water prior to priming. Thebonding agent shall be Nitobond HAR and shall be wellworked in to the substrate. The repair compound shall beapplied whilst the Nitobond HAR is tacky.

Repair material

The area to be reinstated shall be repaired with RenderocHB2. The material shall be mixed with the specified amountof water and applied strictly in accordance with themanufacturer's instructions. Note that only full bags ofRenderoc HB2 shall be mixed. The repair shall be cured inaccordance with the manufacturer's requirements.


Surface preparation

Clean the surface and remove any dust, unsound material,plaster, oil, grease, corrosion deposits or algae. Roughenthe surface and remove any laitence by light scabbing or gritblasting. Saw cut or cut back the extremities of the repairs toa depth of atleast 10mm to avoid feather edging and to providea square edge. Break out the complete repair area to aminimum depth of 10mm, up to the saw edge.

Oils and grease deposits should be removed by steamcleaning, detergent scrubbing or by use of a proprietarydegreaser. The effectiveness of decontamination should thenbe assessed by a pull off test.

Expose fully any corroded steel in the repair area and removeall loose scale and corrosion deposits. Steel should becleaned to a bright condition. Grit blasting is recommended.

Reinforcing steel priming

Apply one full coat of Nitozinc Primer and allow to dry beforecontinuing ( approx. 1 - 2 hrs at 300C).

Concrete / Masonry Priming

The substrate should be thoroughly soaked with water ( anyexcess being removed ) prior to applying one coat of NitobondHAR and scrubbing it well into the surface. Renderoc HB2can be applied as soon as the Nitobond HAR become tacky.(If Nitobond HAR is too wet built up of the Renderoc HB2 inoverhead or vertical situations may be difficult ).

In exceptional circumstances, e.g. where a substrate/ repairbarrier is required, or where the substrate is liable to remainpermanently damp, Nitobond EP should be used. For furtherdetails, Fosroc should be consulted.

Mixing

Care should be taken to ensure that Renderoc HB2 isthoroughly mixed. A forced action mixer is essential. Mixingin a suitably sized drum using a paddle in a slow speed (400/500 rpm) drill is an acceptable alternative. Mixing of partbags should never be attempted.

For 1 bag mix :

Place about 2.75 litres of drinking quality water in the mixerand, add the supplied liquid polymer part and mix with themachine in operation, add Renderoc HB2 powder and mixfor 2 to 3 minutes. Depending on the ambient temperatureand the desired consistency, a small additional amount ofwater may be added up to a maximum total water content of3.25 litres.

Application

Apply the mixed Renderoc HB2 to the prepared substratewith a gloved hand or trowel. First work a mini layer of themortar on to the layer.

Thoroughly compact the mortar on to primed substrate andaround the reinforcement.

Renderoc® HB2

Build up

Additional build up on overhead can be achieved by applicationof multiple layers and final thickness is dependent on thematerial consistency and substrate profile. Exposed steelreinforcing bars should be secured to avoid movement duringthe application process as this can affect mortar compactionand build.

Where thicker sections are required, the surface of theintermediate layer should be scratch keyed and cured withNitobond AR. Repriming with Nitobond HAR and furtherapplication of Renderoc HB2 may proceed as soon as thislayer has set.

The minimum applied final thickness of Renderoc HB2 is10mm.

If sagging occurs, the Renderoc HB2 should be completelyremoved and reapplied at a reduced thickness on to thecorrectly primed substrate.

Finishing

Renderoc HB2 is finished by striking off with a straight edgeand closing with a steel float. Wooden or plastic floats orsponges may be used to provide different surface textures.

Curing

A gap of 20mm shall be allowed behind the reinforcing bars.The final substrate shall be clean and sound. Corrodedreinforcement shall be mechanically cleaned to bright steelcondition.

Renderoc HB2 requires curing immediately after completionof trowelling. Large areas should be cured as trowellingprogresses ( 0.5m2 at time ) without waiting for completion ofthe whole area. In fast drying conditions, it may be necessaryto supplement this with polythene sheet taped down aroundthe edges. When using in cold climates the finished repairmust be protected from freezing.

Overcoating with protective decorative finishes

As part of the Fosroc concrete repair and protection system,Renderoc HB2 is extremely durable and will provide excellentprotection to the embedded steel reinforcement in the repairedareas. The existing sound parts of the structure will benefitfrom the application of a barrier/decorative coating to limit theadvance of the carbonation front, prevent chloride ingressand bring them upto the same protective standard as therepair. The Dekguard range of coatings is designed to achievethis and may be applied. Separate datasheets on this rangeare available.

Cleaning

Renderoc HB2 should be removed from tools and mixerswith clean water immediately after use. Cured material canbe removed mechanically only.

Equipment used with Nitozinc Primer and Nitobond EP shouldbe cleaned with Nitoflor Sol.

Storage

Shelf Life

All products have a shelf life of 12 months if kept in unopenedpacks in a dry store. If stored in permanent high humiditylocations, the shelf life may be reduced . Nitobond AR andNitobond HAR should be protected from frost.

Estimating

Packaging and Coverage

Product Packing Theoretical coverage

Renderoc HB2 18 kg bag 1.3 m2 at and 0.54 kg liquid 10mm

polymer thickness

Nitobond HAR 5 litre Can 3 -4 m2 / litre

Nitobond EP 1& 4 Litre 2.5m2/litre

Nitozinc Primer 5 litre Can 5 m2 / litre

Nitoflor Sol 5 litre Can -

Renderoc® HB2

INDIA/0402/D



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





The coverage figures for liquid products are theoretical. Dueto wastage factors and the variety and nature of possiblesubstrates, practical coverage figures may be reduced.

Precautions

Health & Safety

Renderoc HB2 contains cementitious powders which duringnormal use have no harmful effect on dry skin. Howeverwhen Renderoc HB2 is mixed or becomes damp, alkali isreleased which can be harmful to the skin.

During use

Avoid inhalation of dust

Avoid contact with skin and eyes

Wear suitable gloves and eye protection

Incase of contact with skin, wash with water

In case of contact with eyes, rinse immediately with plentyof water and seek medical advice.

Nitobond bonding agents, Nitozinc Primer, and Nitoflor Solshould not be allowed to come into contact with skin or eyesor be swallowed.

The use of protective clothing, goggles, gloves and barriercreams is recommended.

If contact with skin or eyes occurs wash thoroughly with cleanwater. If irritation persists seek medical attention immediately.

If swallowed, seek medical attention immediately. do notinduce vomiting.

Renderoc HB2, Nitobond HAR and Nitobond AR are non-flammable.

Flash points

Nitobond HAR N/A

Nitobond EP N/A

Nitozinc Primer 200C

Nitoflor Sol 330C


Renderoc HB2 is one of a wide range of products for therepair and protection of damaged reinforcing concrete. Otherproducts in the Renderoc range include heavy duty and fluidcementitious repair compounds as well as Nitomortarchemical resistant epoxy resin mortars. In addition, Fosrocmanufactures a comprehensive range of Dekguard decorativeand anti-carbonation coating.

All products are described in greater detail in individualtechnical datasheets.

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constructive solutionsRenderoc® Plug

Rapid setting cement based, water leak pluggingmortar

Uses

For the rapid temporary patching and plugging of concretesegments, concrete and brick tunnel linings, sewagesystems, below ground access chambers, pipes,basements, foundations and mines.

Advantages

Emergency water - stopping capability

Single component - only the addition of clean water isrequired.

Excellent bond to the substrate

Low exotherm minimises thermal cracking

Pre-packed formulation to overcome variation in sitebatching

Contains no chloride admixtures.

Description

Renderoc Plug is supplied as a ready to use blend of drypowders which requires only the addition of clean water atsite to produce a highly consistent, rapid setting mortar whichis easy to apply in many difficult conditions. The material isbased on a blend of cements, graded aggregates, specialfillers and chemical additives which control the rate of setand minimise the risk of thermal cracking.

Technical support

Fosroc offers a comprehensive range of high performance,high quality concrete repair and construction products. Inaddition, Fosroc offers technical support service to specifiers,end users and contractors, as well as on-site technicalassistance in locations all over the country.

Design criteria

Renderoc Plug can be applied to horizontal, vertical oroverhead surface at a wide range of thickness. Generally,the volume of mixed material used in a single application isrestricted to that which can be applied by trowel or glovedhand. Thicker sections can be built up in layers. If any doubtarises about the nature of the substrate, consult the localFosroc office for further information.

Properties

Initial set time Approx. 1 - 2 mins. at 300C

Note : Set times will be extended when mixed or applied atlower temperatures.

Compressive strength : 25N/mm2 @ 28 days @ 300C

Heat generation characteristics : High heat output(exotherm) leads to undesirably high shrinkage andconsequent thermal cracking. The curves below show thelow heat output of Renderoc Plug which minimises the riskof shrinkage and thermal cracking.


Water stopping mortar

The water stopping mortar shall be Renderoc Plug, a singlecomponent cement based product to which only the site -addition of clean water shall be permitted. It must be chloridefree and shall have a low exotherm to minimise thermalcracking.


Preparation

Areas to be patched should be cut back to a depth of 15mmand given a good mechanical key. Feather edges must notbe allowed. Surface should be brushed clean to removeloose material, dust and laitence. Grease, slime or mouldgrowth should be removed by steam cleaning or highpressure water jetting. A proprietary degreasing agent shouldbe used for removal of light oil or grease contamination.

To seal leaks, crack openings must be chased out toapproximately 20mm. The chase should always be undercutto avoid leaving a V-section. All loose material and debrisshould be removed.

Mixing

Renderoc Plug should be added to clean water in thefollowing proportions :

One part clean water : 3 parts Renderoc Plug ( measured byvolume ).

Renderoc® Plug

INDIA/0404/D



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





Mix to a stiff consistency in a suitable container using a trowelor gloved hand. Due to the rapid set characteristics of theproduct, only prepare a quantity of mortar which can be placedwithin the prescribed set time.

Application

Trowel apply or hand-knead the mixed mortar in place,ensuring maximum contact with the substrate before thematerial sets. If being used to plug running water, RenderocPlug should be used and held in place until the initial set isreached.

Cleaning

Renderoc Plug should be removed from tools, equipmentand mixers with clean water prior to the initial set. Curedmaterial can only be removed mechanically.

Limitations

Renderoc Plug should not be used when the temperature isbelow 100C and falling.

Storage

Shelf life

Renderoc plug has a shelf life of 6 months if kept in a drystore in the original, unopened bags.

Precautions

Health & Safety

Renderoc Plug contains cement powders which, when mixedor become damp, release alkalis which can be harmful tothe skin. During use, avoid inhalation of dust and contactwith skin and eyes. Wear suitable protective clothing, gloves,eye protection and respiratory protective equipment. The useof barrier creams provide additional skin protection. In caseof contact with skin, rinse with plenty of clean water, thencleanse with soap and water. In case of contact with eyes,rinse immediately with plenty of clean water and seek medicaladvice. If swallowed, seek medical attention immediately -do not induce vomitting.

Fire

Renderoc Plug is non-flammable.

Ren

dero

c® P

utty

constructive solutionsRenderoc® Putty

Uses

To provide a water-resistant, smooth finish levellingcompound for concrete walls, masonry and brick surfaces.

Advantages

Suitable for both Internal and external applications

Water-resistant

Excellent adhesion to host substrate

Smooth finish

Low water absorption

Suitable for leveling prior to the application of oil based orwater based coatings

Description

Renderoc Putty is a cement based putty containing selectedpolymers to provide a smooth finished surface prior toapplication of decorative coatings.

It is available in white and grey colours.

Technical support

Fosroc offers a comprehensive range of high performance,high quality construction products. In addition, Fosroc offersa technical support package to specifiers, end-users andcontractors, which includes computer aided design (C.A.D.)and technical on-site assistance from staff with unrivalledexperience in the industry.


Preparation

All surfaces to receive Renderoc Putty should be clean andfree from dust, coatings, curing compounds and other loosedebris. Surfaces should be free from blow holes or largevoids.

When used over masonry, hollow blocks or rough surfaces,apply a 1:3 cement:sand render over the blocks and allow tocure for at least 3 days prior to application of Renderoc Putty.

Mixing

Care should be taken to ensure that Renderoc Putty isthoroughly mixed. Mix in a suitable size container using anapproved spiral paddle attached to a slow speed (400/500rpm) heavy-duty drill.

Place 4.8 - 5.1 litres of cool, clean drinking quality water in themixing container followed by the powder and mix thoroughly.

Small quantities can be hand mixed by blending 2.5 - 3 partspowder to 1 part by volume of cool, clean, drinking water.

Application

All surfaces to be levelled should first be wetted with water atleast one hour prior to the application of Renderoc Putty. Anyarea that dries too fast should receive further wetting. As ageneral rule surfaces to receive Renderoc Putty should bedamp before the application of the levelling compound.

Apply Renderoc Putty on the damp surface using a painter'sputty knife. Do not use a mason's trowel. Build up the levellingcompound in thin layers, until any irregularities or protrusionshave been completely covered. This may require 2-3 coats.Allow each coat to dry for 20-30 minutes before the applicationof further coats. Final coat should be abraded using a finegrain sand paper after Renderoc Putty has dried for at leastone hour. Levelled areas may be overcoated with decorativecoatings.

Estimating

SupplyRenderoc Putty : 5 and 25 kg bags

Coverage and YieldRenderoc Putty : 0.625 kg/m² at 0.5 mm

thickness.

Storage

If protected from the environment in the original undamagedpacking the shelf life of Renderoc Putty is 12 months.

Cement based polymer rich putty for wall and ceiling

Renderoc® Putty

INDIA/0445/A



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





† See separate data sheet















Precautions

Health and safety

Renderoc Putty contains cement powders, which when mixedor become damp, release alkalis which can be harmful tothe skin. During use, avoid inhalation of dust and contactwith skin and eyes. Wear suitable protective clothing, gloves,eye protection and respiratory protective equipment. The useof barrier creams provide additional skin protection. In caseof contact with skin, rinse with plenty of clean water, thencleanse with soap and water. In case of contact with eyes,rinse immediately with plenty of clean water and seek medicaladvise. If swallowed, seek medical attention immediately -do not induce vomiting.

Ren

dero

c® R

G

constructive solutionsRenderoc® RG

General purpose, non-shrink, cementitious micro-concrete

Uses

Renderoc RG is used for repairs to damaged reinforcedconcrete elements, particularly where access is restrictedand where vibration of the placed material is difficult orimpossible.

It is suitable for various structural strengthening measuressuch as encasement build-ups, jacketing etc.

Advantages

Gaseous expansion system compensates for shrinkageand settlement in the plastic state.

Can be pumped or poured into restricted locations.

Highly fluid to allow for placement without vibration.

Pre-packed to overcome site-batched variations.

Rapid strength gain to facilitate early reinstatement.

High ultimate strengths and low permeability of curedrepair.

Contains no chloride admixture.

Description

Renderoc RG is supplied as a ready to use blend of drypowders which requires only the site addition of clean waterto produce a free-flowing non-shrink repair micro concrete.The material is based on Portland cements, gradedaggregates and fillers, and additives which impart controlledexpansion characteristics in the plastic state, whileminimising water demand. The low water requirementensures high early strength and long-term durability.

For larger repairs, the mixed Renderoc RG may be modifiedby the addition of 5mm to 12mm clean, graded, saturatedsurface dry aggregates at site. For exceptionally large repairs,the local Fosroc office shall be consulted.

Technical support

Fosroc offers a technical support package to specifiers, endusers and contractors as well as technical on-site assistancein locations all over the country.

Design criteria

Renderoc RG can be applied in sections upto 100mm deep.For larger sections, the addition of approved aggregates maybe required. This will depend on the specific configuration ofthe repair location. Fosroc office shall be contacted for furtherinformation.

Properties

The following results were obtained at a water:Powder ratioof 0.16 @ 300C.

Test Typical result at 300C

Compressive strength (N/mm2)(Tested on 70.7mm cubes as per BS 4551-80)

1D 3D 7D 28D10 30 40 50

Tensile strength 2.0N/mm2 @ 28 days

Flexural strength 5N/mm2 @ 28 days(BS4551 - 80)

Young's Modulus 25 kN/mm2

Expansion characteristics Unrestrained expansion(ASTM C827 - 1987) 1 to 4%.

Pressure to restrainPlastic expansion Approx. 0.004N/mm2.

Coefficient of thermal 10 - 12 x 10-6 / 0C.expansion

Thermal conductivity 1.5 W/m0C

Fresh wet density 2100 - 2200 kg/m3

(Mixed density @270C)


Performance specification

The fluid micro-concrete repair material shall be a singlecomponent, cement based, micro-concrete to which only thesite-addition of clean water ( and approved graded coarseaggregates where specified) shall be permitted. The micro-concrete shall contain no metallic aggregates, or chloridesand shall be shrinkage compensated in the plastic state.

Renderoc® RG

The micro concrete in the flowable consistency should achievea compressive strength of not less than 10N/mm2 after 24hours, 40N/mm2 after 7 days and 50 N/mm2 after 28 dyas at300C. Most importantly, the cured microconcrete shall containno metallic aggregates, or chlorides and shall be shrinkagecompensated in the plastic state. The unrestrained expansionshall be between 1 - 4%. The flexural strength shall not beless than 5 N/mm2 @ 28 days. The microconcrete shall havea coefficient of thermal expansion similar to that of the hostconcrete. The mixed density of microconcrete shall exceed2100 kg/m3 at 270C.

Supplier specification

All microcreting (specify details and areas of application) mustbe carried out using Renderoc RG, manufactured by Fosroc,applied strictly in accordance wtih the manufacturer's technicaldatasheet.


Preparation

The unrestrained surface area of the repair must be kept to aminimum. The formwok should include drainage outlets forpre-soaking and, if beneath a soffit, provision for airventing.Provision must also be made for suitable access points topour or pump the mixed micro-concrete in place.

Defective concrete surfaces must be cut back to a sound base.Smooth surfaces should be mechanically roughened.Corroded reinforcing steel should be exposed around its fullcircumference and cleaned to remove all loose scale andcorrosion deposits. It is important to clean the steel to a brightcondition. Grit-blasting is recommended.

One coat of Nitozinc Primer should be applied on thereinforcing steel. If any discontinuity in the applied film isnoticed, one more coat has to be applied.

Several hours prior to placing, the concrete substrates shouldbe saturated with clean water. Immediately prior to placing,any free water should be removed.

Alternatively, all prepared concrete substrates should beprimed using Nitobond EP, a slow - setting epoxy bond aid.Nitobond EP shall be applied only on dry substrate.

Note : For repair sections generally deeper than 100mm itmay be necessary to mix the Renderoc RG with properlygraded 5mm to 12mm silt-free aggregate to minimisetemperature rise. The quantity of aggregate required may varydepending on the nature and configuration of the repairlocation. The typical results with a few aggregate proportions,for various applications are furnished below for guidelines.

Typical results of Renderoc RG with graded coarseaggregates of maximum size 12mm.

Renderoc RG : Coarse aggregate (SSD) (By weight) 1 : 0.75

Water: Powder ratio 0.16(By weight)

Compressive strength (N/mm2 )

1 D 3 D 7 D 28D15 35 45 55

Workability Flowable

Note : W/P shall not be increased under any circumstances.

Estimating

Packaging

Renderoc RG is supplied in 25 kg moisture resistant bags.

Yield

Approximately 13.0 litres per 25 kg bag. Actual yield per bagwill depend on the consistency of Renderoc RG and quantityof coarse aggregate added.

Storage

Shelf life

6 months if kept in a dry store in the original, unopened bags.If stored at high temperatures and/or high humidity conditionsthe shelf life may be reduced.

Renderoc® RG

Precautions


Renderoc RG contains cement powders which, during normaluse, have no harmful effect on dry skin. However, whenRenderoc RG is mixed, or becomes damp, alkali is releasedwhich can be harmful to the skin. During use, avoid inhalationof dust and contact with skin and eyes. Suitable gloves, eyeprotection and dust masks shall be worn. The use of barriercreams is recommended. Incase of contact with skin, it shallbe washed with clean water. Incase of contact with eyes, itshall be rinsed immediately with plenty of clean water andmedical advice shall be sought. If swallowed, medicalattention shall be sought immediately - Vomitting should notbe induced. Renderoc RG is non-flammable.


Fosroc manufactures a wide range of products specificallydesigned for the repair and refurbishment of damagedreinforced concrete. These include hand placed andtrowellable repair mortars, fluid micro concretes, chemicalresistant epoxy mortars and a comprehensive package ofprotective coatings. In addition, a wide range of complimentaryproducts are available. These include admixtures, jointsealants, waterproofing membranes, grouting, anchoring, andspecialised flooring materials.


Renderoc® RG

INDIA/0404/E



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





Ren

dero

c® R

SXtra

constructive solutionsRenderoc® RSXtra

Uses

For emergency reinstatement of damaged or deterioratedconcrete. The material can be used internally or externallyand is particularly suitable for repairs to:

Airport runways and aprons

Areas where wheeled traffic requires fast return toservice

Industrial concrete floors

Advantages

Cost effective - Pioneering ‘DS Technology’ ensuresshrinkage control, and enables repairs to be completed‘right first tmie’.

Rapid strength gain - Accepts vehicular traffic in 2 hrs.

Good durability - High strength, abrasion and weatherresistance

Economical - Can be ‘bulked-out’ with graded aggregatein some locations.

Self compacting - Eliminates honeycombing voids

Description

Renderoc RSXtra is a blend of dry powders and gradedaggreates which requires only the site additon of clean waterto produce a highly cnsistent, high strength, free flowing repairconcrete which self-compacts, Renderoc RSXtra exhibitsexcellent compatibility with concrete and good water repellentproperties.

Technical support

Fosroc offers a comprehensive range of high performance,high quality concrete repair and construction products. Inaddition, Fosroc offers a technical support service tospecifiers, end-users and contractors, as well as on-sitetechnical assistance in locations all over the world.

Design criteria

Renderoc RSXtra is designed for horizontal use but can alsobe used vertically with the aid of formwork. Horizontal surfaceareas should be restricted to bay sizes not exceeding 4m2.Renderoc RSXtra should be applied at thicknesses in therange 20-100mm. Thicker sections may be completed bythe addition of suitable aggregates - consult the local Fosrocoffice for more information.

Rapid setting repair concrete

Properties

The physical properties given are typical of those obtained inpractice:

Test Method Typical result

w/p ratio 0.15

Compressive strength 15N/mm2 @ 3 hours100mm Cubes dry cured 25N/mm2 @ 1 day@ 250C (BS 1881: 40N/mm2 @ 7 daysPart116-1983) 45 N/mm2 @ 28 days

Working life 20 min @ 200C15 min @ 350C

Setting time (BS4550:part3 1978)w/p ratio 0.15 @ 250C

Initial set 60 min

Final set 90 min

Traffic time @ 250C

Pedestrain 2 hoursVehicular 4 hours

Coefficient of thermalexpansion 11 10-6/0C

Fresh wet density approx. 2170 kg/m3

Drying shrinkage to ASTM C157 28 days

Renderoc® RSXtra

The prepared area should be blown clean with oil-freecompressed air.

Temporary formwork should be fitted tightly into all existingpavement and floor joints which abut the repair zone in orderto prevent grout loss during the repair process.

Priming

Prior to placing, the prepared concrete substrate should besaturated by flooding with clean water. Immediately Prior tothe application of Renderoc RSXtra, free standingwatershould be removed leaving the substrate ‘saturated surfacedry’.

Provided the substrate has been properly soaked, furtherpriming is not normally necessary.

Mixing

Care should be taken to ensure that Renderoc RSXtra isthoroughly mixed. A forced action mixer is essentially (freefall mixers are not suitable). Hand mixing of single bagsshould be carried out in a suitably-sized mixing vessel, usinga slow speed drill (400/500 rpm) + Fosroc mixing paddleattachment. Under no circumstances should part mixing beconsidered.

It is essential that machine mixing capacity, material quantitiesand labour availability is adequate to enable the placingoperation to be carried out continuously. Measure 2.25 litresof drinking quality cool water and pour three quarters into themixer. With the machine in operation, add one full kg. bag ofRenderoc RSXtra and mix for one minute before adding therest of the water. Mix for a further 3-4 minutes until a smootheven consistency is obtained. Note that powder must alwaysbe added to water. The quantities mixed may be scalled upas required.

When the drill and paddle mixing method is used, thecomplete measured volume of water should be placed in themixing drum. With the paddle rotating, add one full 15 kg.bag of Renderoc RSXtra and mix for 3-5 minutes until asmooth even consistency is obtained.

Placing

The mixed material should be placed within 10 minutes ofmixing in order to gain the full benefit of fludity. Each repairshould be poured and pumped in a single continuousoperation. Repairs may be surface finished using a trowel orwood float. If a textured surface is required, this can beachieved using a suitable roller or brush as the materialbegins to stiffen. The completed surface should not beoverworked. Renderoc RSXtra can be applied up to 100mmthickness in a single applciation

For repair sections deeper than 100 mm, it will be necessaryto ‘fill-out’ Renderoc RSXtra with suitable and properly gradedaggregate in order to minimise temperature rise.

Care should be taken to ensure that, repaired area is notaffected by vibrations caused by the adjacent zones, till 3hours from the time of placing the material to avoid cracking.

Contact the local Fosroc for further details.

High temperature working

It is suggested that, the temperatures above 300C, thefollowing guidelines are adopted as good working practice:

Store unmixed material in a cool (preferably temperaturcontrolled) environment, avoiding exposure to direct sunlight.

Keep equipment cool, arranging shade protection ifnecessary. It is especially important to keep cool thosesurfaces of equipment which will come into direct contactwith the material itself.

Try to eliminate application during the hottest times of theday.

Makes suffient material, plant and labour available to ensurethat application is a continuous process.

Water (below 200C) should be used for mixing the repairconcrete prior to placement.

Renderoc® RSXtra

Curing

Renderoc RSXtra is a cement-based product. In commonwith all cementitious materials, Renderoc RSXtra must becured immediately after finishing in accordance with goodconcrete practice. Nitobond AR shall be used for effectivecuring of the repair area. In fast drying conditions,supplementary curing with polythene sheeting taped downat the edges must be used. In cold conditions, the finishedrepair must be protected from freezing.

Cleaning

Renderoc RSXtra should be removed from tools, equipmentand mixers with clean water immediately after use. Curedmaterial can only removed mechanically.

Equipment used with Nitobond AR should be cleaned withwater immediately after use.

Limitations

Renderoc RSXtra should not be used when the temperatureis below 50C and falling.

Do not mix part bags

The product should not be exposed to moving water duringapplication

Exposure to heavy rainfall prior to the final set may result insurface scour

If any doubts arise concerning temperature or substrateconditions, consult the local Fosroc office.

Specification clause

Where shown in the contract documents, the fast setting repairconcrete shall be Renderoc RSXtra by Fosroc, a singlecomponent, cement-based blend of powders and gradedaggregates, to which only the site-addition of water shall bepermitted. The cured repair concrete shall achievecompressive strengths of 15N/mm2 after 3 hours and 25N/mm2 after 1 day (@ 250C). The material shall thus be capableof supporting pedestrain and vehicular traffic after 4 hours, atan ambient temperature of 250C.

Estimating

Supply

Renderoc RSXtra 15 kg. bags

Nitobond AR 1, 5 & 20 L containers

Coverage & Yield

Renderoc RSXtra Approx. 7.5 L / 15 kg. bag

Nitobond AR 6.0 - 8.0 m2/litre

Storage

Shelf life

Renderoc RSXtra and Nitobond AR have a shelf life of 6months if kept in a dry store in the original, unopened bags orpacks.

Storage conditions

Store in dry conditions in the original, unopened bags or packs.If stored at high temperatures and / or high humidity conditions,the shelf life may be reduced.

Precautions

Renderoc RSXtra contains cement powders which, whenmixed or become damp, release alkalis which can be harmfulto the skin. During use, avoid inhalation of dust and contactwith skin and eyes. Wear suitable protective equipment. Theuse of barrier creams provide additional skin protection. Incase of contact with skin, rinse with plenty of clean water,then cleanse with soap and water. In case of contact witheyes, rinse immediately with plenty of clean water and seekmedical advice. If swallowed, seek medical attentionimmediately - Do not induce vomiting.

Nitobond AR should not come in contact with skin and eyesor be swallowed. Ensure adequate ventillation and avoidinhalation of vapours. Some people are sensitive to resins,hardeners and solvents. Wear suitable protective clothing,gloves and eye protection. If working in confined areas,suitable respiratory protective equipment must be used. Theuse of barrier creams provide additional skin protection.

Renderoc® RSXtra

INDIA/0455/A



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





Fire

Renderoc RSXtra, Nitobond AR clear are non-flammable.

Disposal

Spillages of component products should be absorbed ontoearth, sand or other inert material and transferred to a suitablevessel. Disposal of such spillages or empty packaging shouldbe in accordance with local waste disposal authorityregulations.

For further information, refer to the Product Material safetydatasheet.















Sup

erpa

tch

constructive solutionsSuperpatch

Cementitious repair system for concrete floors

Uses

For patching and replacement of worn out areas, filling ofholes or depressions in concrete floor slabs in factories,godowns, commercial or domestic buildings.

Advantages

High strength : Nearly three times harder than the normalconcrete

Non shrink - Eliminates shrinkage problems associatedwith conventional cement concrete / mortars and ensureseffective bonding.

Reliability : Factory controlled prepacked product eliminatesmaterial selection, quality control and other associatedproblems on site.

Durability : Very high ultimate strengths combined with auniform microcellular material structure provides heavyduty performance and durability.

Early usage : Floor usable in 24 hours for light traffic andin 72 hours for all traffic.

Iron free, chloride free : No metallic iron present to corrodeand cause staining or deterioration due to rust expansion.Allows early strength development without the use ofchlorides.

Description

Superpatch mortar is supplied as a ready to use dry powderrequiring only the addition of water to produce a high strengthmortar with non shrink property. The material is a mixture ofspecially processed cement and carefully graded fineaggregate. Additives impart controlled expansioncharacteristics and reduce water necessary to producecohesive mortar mix. The very low water/powder ratio ( 0.14)ensures high early and ultimate strengths.

For repairing thick sections of more than 25mm depth it isnecessary to use well graded aggregates ( machine crushed,washed and cleaned) in the size range of 3mm to 10mm.Quantity of aggregates should not exceed 1 part of gradedaggregate to 1 part of Superpatch by weight in which case thewater/powder ratio will need to be increased to 0.18.

Technical support

A technical advisory service is available for onsite assistancein the use of Fosroc product range.

Properties

Compressive strength (N/mm2)

1 D 3D 7D 28D250 400 500 600

The following are the typical values obtained with Superpatchat recommended water powder ratio.


Mix specification

The amount of water required to obtain a cohesive mortarconsistency only should be used. Accurate gauging methodsmust be employed. The water addition to each 25 kg standardpack of Superpatch should be :

Mortar Consistency 3.5 litres

Mortar with coarse aggregates 4.5 litres (max.)

Mixing

A mechanically powered free fall concrete mixer may be usedfor for small quantities upto 50 kg ( 25 litres of mortar ) mixingmay be carried out using a steel paddle in a hand held heavyduty industrial drill. Under no circumstances should Superpatchbe mixed by hand.

Place about 80% of the specified volume of water in themixer and also place in the drum 6 to 8 hard, clean stonesor old concrete cubes of 100mm size to increase mixingefficiency.

Slowly add the required quantity of Superpatch and mixcontinuously.

Add the remaining water and continue mixing until an evenconsistency mortar free from lumps is obtained.

Addition of extra water will reduce the strength of the mortar.

Surface preparation

The patch to be repaired must be chipped to a minimum depthof 25mm and all loose particles, dust, etc., removed to leave aclean, vertical edge all round. It must be ensured that patchesto be treated must be cut back and made either square orrectangular in shape. The area to be repaired should becleaned by vacuum or compressed air to ensure propercleaning.

Priming

The cleaned surface free from dust and loose particles shouldbe primed with a first coat of Nitobond PVA / Nitobond AR ( onepart of which is diluted in 5 parts of water ) - by means of abrush and allowed to dry for at least 1 - 3 hrs depending upontemperature and humidity.

A second coat of Nitobond PVA / Nitobond AR is applied on thesurface and the repair mortar is placed when the primer is stilltacky.

Where Superpatch is mixed with aggregates for larger areas,priming must be done with Nitobond AR. Water and cementratio is the ratio of 1 : 1: 3. Application of Superpatch must bedone when the primer is tacky.

Superpatch

INDIA/0406/E



++91 80-2334 3188 ++91 80-2334 3178 [email protected]





Note : In the areas where water stagnation is expected, theprimer shall be Nitobond AR.

Application of mortar

The Superpatch mortar which is obtained by mixing water withthe recommended water powder ratio (see mixing ) is placedon the second coat of primer whilst tacky, and trowelled firmlyinto all edges first and over the entire area to fill it completelyand levelled with a steel or wooden float. The finished areamust be covered with a thick gauge polythene sheet and madeair-tight for at least 4 - 6 hours after which normal curing withwet hessian cloth or water ponding must be carried out for aminimum period of 72 hours after which the floor may be openedto all industrial traffic.

The application of Superpatch mortar must be carried out insmall bays measuring 2 m2 area at a time.

Curing

The area repaired with Superpatch mortar must be cured assoon as the surface slightly stiffens and not later than 4 hours.Normal curing with water ponding or wet hessian cloth mustbe carried out for a minimum period of 72 hours.

The floor may be used for light traffic viz. foot traffic and lighttrolleys after 24 hours in which case a steel sheet of at least2mm thick is laid over the polythene cover over which lighttraffic may be run as mentioned above.

Estimating

Packaging

Nitobond PVA and Nitobond AR are available in 1, 5, 20 litrepackings. Superpatch is available in airtight HDPE packs of 25kg.

Coverage and yield

1 litre of Nitobond PVA when diluted with 5 litres of water willcover approx. 10 -15 sq.m in two coats and Nitobond AR willcover approx. 6 - 8 sq.m depending upon the texture of theconcrete surface.

Superpatch mortar with recommended water powder ratio willyield approx. 13 litre per 25 kg pack.

Storage

Superpatch has a shelf life of 6 months in unopened bags ifkept in a dry store. In humid locations the shelf life may befurther reduced.

Precautions


Nitobond PVA/Nitobond AR are non toxic. Gloves should beworn while handling. Superpatch mortar is non toxic and isslightly alkaline in nature. Splashes of mortar should bewashed off with clean water.


Fosroc manufactures a wide range of products specificallydesigned for the repair and refurbishment of damagedreinforced concrete. This includes repair mortars, fluid micro-concretes, chemical resistant epoxy mortars in addition tocomprehensive package of protective coatings. In addition, awide range of complementary products are available. Thisincludes joint sealants, waterproofing membranes, grouts andanchors and specialised flooring materials.

Separate datahsheets are available on these products.

Renderoc CF constructive solutions2.imimg.com/data2/EE/DT/MY-3845120/renderoc.pdf · 2019. 12....

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