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Concrete Repair & Protection in Accordance with BSEN1504

www.nufins.com

About Us

As part of USL Group, Nufins has supplied materials to numerous projects since 1966 including power stations, water treatment schemes, ports, airfields, highways, bridges and tunnels. We take innovation seriously and we believe that this is necessary for a manufacturing company to adapt in our highly competitive industry. Nufins’ investments in our laboratory and production facilities have enabled the development of innovative products, thereby helping to improve effectiveness and efficiency on construction sites.

Nufins has a global reputation for manufacturing and supplying high quality specialist

products for highway maintenance, waterproofing, structural grouting, joint-sealing,

corrosion control, concrete repair and protective coatings for concrete structures.

For further information visit our interactive website www.nufins.com

Industry Accreditation

Nufins recognises the importance of membership to industry-affiliated specialist

organisations, allowing us to keep in close contact with latest industry developments.

We work in partnership with architects, consultants and contractors to improve product

technology, quality and performance, thus benefiting all stakeholders in all aspects of the

construction industry.

Materials are manufactured under the ISO 9001 Quality Management Scheme. All products

for use in the repairs and protection of concrete structures are tested in accordance with

BS EN 1504 and carry the CE label, thus providing Nufins’ customers with confidence in the

quality and reliability of our specialist product range.

OU R R A NG E

F o r m w o r k T r e a t m e n t s

C o n c r e t e C u r i n g & R e t a r d i n g

R e s i n M o r t a r s & A d h e s i v e s

C o n c r e t e R e p a i r P r o d u c t s

P a v i n g & B e d d i n g M o r t a r s

S t r u c t u r a l G r o u t s

P r o t e c ti v e C o a ti n g s

J o i n t F i l l e r s & S e a l a n t s

R e s i n F l o o r i n g

Anti-Skid Surfacing

1966 - 2016

N u c e m P r i m e r

N u c e m H B M o r t a r

A c r o p a k H B 4 0 M o r t a r

N u c e m M o r t a r

N u c e m C o n c r e t e

D e c k R e p a i r R a p i d

N u c e m S k i m c o a t

P r o fl e x ‘ A ’

C o v e r c r e t e

N u c y l

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The performance of concrete as a construction material depends on a number of factors; its original quality,

exposure conditions, design and the standard to which it has been applied, all have a bearing on its durability.

All concrete will be subject to chemical and physical change. However one of the main causes of concrete failure is

due to reinforcement corrosion. The following CE labelled materials can be used for repairs to improve the alkalinity of

the damaged areas;

Principle Causes The principle factors involved in

reinforcement corrosion are

carbonation and chloride attack. Other

factors such as alki-silica reaction,

chemical attack, impact damage and frost

action may also prove important.

Carbonation Most commonly the loss of alkalinity in

concrete occurs through carbonation,

where carbon dioxide reacts with the

alkaline materials in the concrete

converting them to carbonates. This

causes the pH to fall below the level

required for passivation resulting in

reinforcement corrosion.

Chloride Attack Chlorides may be present in concrete

from the time it was originally mixed

or they may migrate in by de-icing or

marine salts. Combined with the

presence of moisture they will cause

rapid deterioration of the

reinforcement.

It is essential that the reasons for and

the extent of the problem is identified

before carrying out any repairs.

Protective Coatings

Nucem Skim Coat A blend of high grade cements, fine aggregates and acrylic resin designed to produce a

flexible levelling coat to cover areas repaired and existing concrete. Nucem Skim Coat gives

an overall uniform appearance or a consistent surface to receive protective coatings. Polymer

modified, capable of bridging hairline cracks and ideal for treating areas with low

reinforcement cover. Tested by Taywood.

Proflex ‘A’ Flexible, anti-carbonation coating. A high build acrylic emulsion designed to protect concrete

from the ingress of rain water and air-borne pollutants, while allowing substrates to breathe.

Also suitable for protection and decoration of a wide range of wall and sheet roofing

materials. Tested by Taywood.

Covercrete Highly durable weather-resistant anti-carbonation coating. This water-based acrylic emulsion

is deigned to significantly reduce the diffusion rate of Carbon Dioxide and protect from

chloride attack. Available in a range of decorative colours. Tested by Taywood.

Nucryl

An effective clear anti-carbonation coating. Solvent borne Acrylic treatment with excellent

resistance properties that provides a long-lasting barrier to protect against Carbon Dioxide,

for the protection of substrates from aggressive atmospheric contaminants.

Repair Mortars

Nucem Primer A cementitious epoxy blend, with long tack free time, designed to promote extremely high bond

strengths. Recognised as one of the best available, the epoxy primer system can be used in wet or dry

conditions. In addition, Nucem Primer protects reinforcement against further corrosion even under the

most adverse conditions.

Nucem HB Mortar/Acropak HB40 Mortar Polymer modified, shrinkage compensated, fibre reinforced, cementitious mortars with high build

characteristics for vertical and inverted surfaces without the need for shuttering. Polymers reduce

damage from CO₂ , ingress of water, chlorides and certain sulphates. Nylon fibres reduce shrinkage

cracking, make the mortar easier to apply and greatly increases the flexural strength of the system.

Complies with BD27/86 Clause 6.

Nucem Concrete/ Nucem Mortar Prepacked polymer modified systems which contain specially graded aggregates for high strength and

abrasion resistance on decks. Excellent resistance to water, frost and salt permeability enabling these

products to be used for heavy duty repairs under the most adverse conditions.

Suitable for next day waterproofing. Complies with BD27/86 Clause 6.

Deck Repair Rapid Deck Repair Rapid is charactersised but its early high strength development, rapid moisture loss and

shrinkage compensation. Designed for quick, easy installation and suitable for next day waterproofing

of bridge decks and areas where rapid turnaround is important. Complies with BD27/86 Clause 6.

Over 50 Years Experience in

Concrete Repair & Protection

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Carbon Dioxide Diffusion Equivalents

Water Vapour Diffusion Equivalents

(1) Nucem HB Mortar is 100 times less permeable than ordinary concrete. (Comparisons made against 30N/mm₂ Concrete).

20mm of Nucem HB Mortar is equivalent to 250mm of concrete (1)

3mm of Nucem Skim Coat is equivalent to 206mm of concrete

150µ of Covercrete is equivalent to 520mm of concrete

268µ of Proflex A equivalent to 260mm of concrete

88µ of Nucryl equivalent to 1000mm of concrete

3mm of Nucem Skim Coat is equivalent to 630mm of concrete

150µ of Covercrete is equivalent to 300mm of concrete

268µ of Proflex A equivalent to 700mm of concrete

For vertical or inverted repairs Acropak HB40 Mortar / Nucem HB Mortar

For blowholes or an overall 2mm-3mm levelling coat Nucem Skim Coat

Typical Section Through Edge Beam

For high strength horizontal repairs Nucem Mortar/Concrete/Deck Repair Rapid

Technical Specification The Nucem System has been subject of independent tests carried out by Taywood Engineering Limited. While copies of these tests are available in full, on request, some of the results appear below.

Covercrete

Proflex ‘A’

BSEN1504 Certificate Number: 0086-CPR-594215 Formwork Treatments Concrete Curing & Retarding Resin Mortars & Adhesives Concrete Repair Products Paving & Bedding Mortars Structural Grouts Protective Coatings Joint Fillers & Sealants Resin Flooring Technical Support: Through our technical department and laboratories we offer a comprehensive service to specifiers and contractors.

For more information call +44(0)191 416 8360

Protective Coatings

Soffit Repairs

Structural Repairs

Ironwork Bedding

Deck Repair

Patching & Screeding

Solutions For Highway Structures