Superplastificante HightechPool Melflux-Starvis e

BASF Construction Polymers GmbH

Dr.-Albert-Frank-Straße 3283308 Trostberg / Germany

P.O. Box 11 1683302 Trostberg

Tel. +49 8621 86-16Fax +49 8621 86-29 95

[email protected]

Melfl ux® 2651 F

Starvis® 3003 F

Melfl ux®/Starvis®

Hightech PoolApplication Technology Report

Melflux_Starvis englisch_neu.indd 1Melflux_Starvis englisch_neu.indd 1 10.09.2008 11:18:49 Uhr10.09.2008 11:18:49 Uhr

Melfl ux®/Starvis® Hightech Pool – Application Technology Report

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Melfl ux®/Starvis® Hightech Poolfor Casein Replacement

➔ Synthetic material / no mold formation

➔ Anti-bleeding and segregation properties

➔ Wide dosage range, easy to dose

➔ Excellent self healing properties

➔ Excellent fl ow properties

➔ Short mixing times

➔ “Safety belt” for water and raw material deviations

➔ Compatible with citric and tartaric acid and other conventional additives

➔ Better strength development

➔ Constant quality ISO 9001:2000

The high-performance superplasticizer Melfl ux® 2651 F and viscosity modifying agent (stabilizer) Starvis® 3003 F are synthetic chemical additives which were developed as a substitute for casein in cementitious self-levelling underlayments (SLUs).

General

Self-levelling underlayments (SLUs) are fast set-ting, multi-binder based construction materials that are commercialized as dry mortars.Melfl ux® 2651 F in combination with viscosity modifying agent Starvis® 3003 F enable the for-mulator to replace casein by synthetic additives for developing high quality SLUs.

Dosage

Recommended dosage range(by total weight of dry mortar - btw):

Melfl ux® 2651 F: 0.10 to 0.30% btwStarvis® 3003 F: 0.05 to 0.20% btw

Recommended Fieldsof Application

➔ Cementitious self levelling underlayments

Binder

Suitable for all common hydraulic binder systems based on CEM I, CEM II and CEM III according to EN 197-1 as well as fast set cements (e.g. CAC containing blends).

Attainable Effects / Properties and Advantages

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1. Performance Profi les

Performance Profi le comparing SLUs with Melfl ux®/Starvis® Productsand conventional technologies

1.1 General Properties

1.2 Fresh Mortar Properties

Fig. 1

Depending on the requirements of SLUs, raw material quality and selection, variousproperties can be adjusted by using the synthetic additives of the Melfl ux®/Starvis® Hightech Pool for casein replacement.

Considerable improvements are achievable by using a combination of Melfl ux® 2651 F and Starvis® 3003 F in comparison to casein based SLUs.

Fig. 2



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1.3 Hardened Mortar Properties

2. Mode of Action

2.1 Mode of Action Superplasticizer Molecules (PCE)

2.2 Mode of Action of Stabilizer Molecules (ST)

Fig. 3

➔ Agglomerated cement particles (with entrapped water)

➔ Sticky cement paste (not fl owable)

➔ Melfl ux® molecules adsorbed on cement particles

➔ Dispersed cement particles

➔ Flowable cement slurry

➔ Sedimentation of dispersed cement particles

➔ Bleeding water on top

➔ Starvis® molecules dissolved in water (Viscosity enhanced)

➔ No associative thickening

➔ Therefore, fl owable and stable mix without sedimentation

Fig. 4

Fig. 5


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3. Application Technology Results

3.1 Test Recipe

Ingredients Amount [% btw]

OPC (CEM I 42.5 R) ___________________ 18.500

CAC (70% CA) ________________________ 11.500

CaSO4 (Synthetic anhydrite) _____________ 6.500

Quartz sand (0.1 - 0.3 mm) _____________ 40.765– 40.615

Limestone powder (20 µm) _____________ 19.400

Latex powder __________________________ 2.000

Li2CO3 ________________________________ 0.100

Defoamer _____________________________ 0.150

Citric acid * ____________________________ 0.185

Shrinkage reducer ______________________ 0.600

Melfl ux® 2651 F _______________________ 0.250

Starvis® 3003 F ________________________ 0.05– 0.20

Total dry mortar ______________________100.000

Water ________________________________ 20.000

3.2 Fresh Mortar Properties

3.2.1 Dosage range interval and effi ciency of stabilizer

Fig. 6

N.B.: All tests carried out at 20 °C (68 °F) temperature and 65% relative humidity

* or tartaric acid, if specifi cally mentioned



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3.2.2 Water tolerance – Anti segregation and bleeding properties

3.2.3 Mixing time

≥

During mixing (EN 1937) every 15sec a sample is taken and the fl ow is measured. Casein based formulations need approx. 3 times (90sec) longer mixing time than formulations based on Melfl ux® 2651 F and Starvis® 3003 F (30sec). The short mixing time makes them especially suitable for machine applied SLUs.

cumulatedreal time action (EN 1937) mixing time

0’00’’– 0’30’’ Add powder to water 0’’

0’30’’– 0’45’’ Mixing (140rpm) 15’’

0’45’’–1’00’’ cleaning vessel & blades, 1st

fl ow-probe 15’’

1’00’’–1’15’’ mixing (285rpm) 30’’

1’15’’–1’30’’ fl ow-sample 30’’

iterative con- every 15sec sample etc.tinuing taken, 15sec mixed

Fig. 7


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Mixing time

3.2.4 Flowability over Time (EN 12706) Flow Properties

Fig. 8

Flow properties depend on early stiffening of the binder. The thixotropic effects of the stabilisers are reduced to an absolute minimum.

Even at lower dosage rate of Melfl ux® 2651F [0.25 %, btw] fl ow properties are superior to regular casein [0.40 % btw] based formulations.

Fig. 9



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3.2.5 Self Healing Properties

Self healing is investigated with a knife-cut test.The hardened surface can be assessed by a seven-step evaluation scale.

Example:

evaluation of knife cut test:

1 cut heals completely, invisible2 cut heals, but visible3 cut heals, but visible edges4 cut heals, but well visible edges5 cut heals, but visible scar6 cut heals, but well visible scar7 cut does not heal

3.2.6 Setting Time Vicat Setting Times

1 2 3 6 7

Fig. 10

Retarding effects of casein and conventional stabilizer are eliminated by using Melfl ux® 2651 Fand Starvis® 3003 F. This accelerates cement hydration during the hardening process resulting in improved surface properties.

Fig. 11

815 30 45

60min


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3.3 Hardened Mortar Properties

3.3.1 Compressive Strength

Compressive Strength of Mortar Prisms (4 cm x 4 cm x 16 cm)

3.3.2 Flexural Strength

Flexural Strength of Mortar Prisms (4 cm x 4 cm x 16 cm)

Using Melfl ux® 2651 F and Starvis® 3003 F provides improved early strength (after 4h) compared to casein and cellulose ether.

Thus, required time for foot traffi c hardness and fl oor covering installation is substantially shortened.

Fig. 12

Fig. 13



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4.1 Storage Instructions

Due to the special polymer properties Melfl ux® powder products have a thermal sensitivity which may lead to lump formation in case of excessive heat, humidity and pressure.

Melfl ux® 1641 F, 2641 F and 2651 F should be stored at ambient temperatures below 40° C (104 °F), dry and cool in its unopened originalpackaging at relative humidity below 60 %. Close and reseal opened packages properly. In any case, please do not double stack the pallets (reduction of weight exposure).The shelf life of Melfl ux® 1641 F, 2641 F and 2651 F is up to 1 year when stored in the conditions stated above.

Starvis® 3003 F should be protected from excessive heat and stored in unopened original packaging. Shelf life for this product is 2 years.

4.2 Others

Furthermore, it is important to obey the relevant national laws and regulations concerning safety, environmental protection, storage and transport.Beside this we kindly ask to follow the corresponding advice in technical and material safety data sheets.Additional information will gladly be provided on request.

4.0 Miscellaneous

This information and all further technical advice are based on our current knowledge and experience. However, it implies

no liability or other legal responsibility on our part, including with regard to existing third party intellectual property rights,

especially patent rights. In particular, no warranty, whether expressed or implied, or guarantee of product properties in the

legal sense is intended or implied. We reserve the right to make any changes according to technological progress or further

developments. The customer is not released from the obligation to conduct careful inspection and testing of goods.

Performance and suitability of the product described herein have to be verifi ed by testing, which has to be carried out only

by qualifi ed experts in the sole responsibility of the customer. Reference to trade names used by other companies is neither

a recommendation nor an implementation that similar products could not be used.

In addition our general terms and conditions for sale are valid.

Issue: August 2008

This technical note is valid until replaced by a new issue.


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For your notes

Marketing/Sales

Tel. + 49 8621 86-16Fax + 49 8621 86-29 [email protected]

Application Technology

Tel. + 49 8621 86-28 55Fax + 49 8621 86-32 [email protected]

How to get through to your Contact Person


BASF Construction Polymers GmbH is an international organization providing services and products as a global business.

The headquarters and our regional offi ces are located in the below mentioned countries. Those countries, which are not listed below are directly served by our headquarters in Trostberg, Germany.

Worldwide Activities

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Germany (Headquarters)

BASF Construction Polymers GmbHDr.-Albert-Frank-Straße 3283308 TrostbergGermany

P.O. Box 11 1683302 Trostberg

Tel.: +49 8621 86-16Fax: +49 8621 86-29 95

[email protected]

USA / Canada / Mexico (Construction Polymers)

BASF Corp.Construction Polymer Additives 2125 Barrett Park Dr.Suite 102Kennesaw, GA 30144-7080United States of America

Tel.: +1-7 70-9 71 13 17Fax: +1-7 70-9 71 43 06

[email protected]

Australia

ISM International Sales &Marketing Pty. Ltd.262 Highett RoadHighett, 3190VictoriaAustralia

Tel.: +61-3-95 32-12 77Fax: +61-3-95 32-08 02

[email protected]

United Kingdom & Ireland (Construction Polymers)

IMCD UK Ltd(Previous name: Honeywill & Stein Limited)Times HouseThrowley WaySutton, Surrey, SM1 4AFUnited Kingdom

Tel.: +44-20-87 70 70 90Fax: +44-20-87 70 72 95 [email protected]

Argentina / Paraguay / Uruguay (Construction Polymers)

Delanta S.A.Emilio Lamarca 2428, Don TorcuatoBuenos AiresArgentina

Tel.: +54 11 47 27-03 33Fax: +54 11 47 27-02 06

[email protected]

Japan (Construction Polymers and Oilfi eld Polymers)

BASF Pozzolith Ltd. Polymers DivisionNanbu Bldg. 3-3 KioichoChiyoda-kuTokyo 102-8570Japan

Tel.: +81-3-32 38 22 05Fax: +81-3-32 38 22 10

[email protected]

Italy (Construction Polymers)

Neuchem S.R.L.Corso Sempione 270/a20080 San Vittore Olona MIItaly

Tel.: +39-03 31-42 33 10Fax: +39-03 31-42 33 03

[email protected]

Russia (Construction Polymers)

EuroHim-1 Ltd.P.O. Box 332a, Trofi mova115432 MoscowRussia

Tel.: +7-4 95 7 81 66 56Fax: +7-4 95 7 81 66 46

[email protected] www.chem.eurohim.ru

Brazil (Construction Polymers)

Makeni Chemicals Ltd. Avenida Presidente Juscelino, 570/578CEP 09950-370 Diadema SP Brazil

Tel.: +55 11 43 60 64 00Fax: +55 11 40 71 06 94Mobile: +55 11 99 18 98 08

[email protected]


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