Viscosity Modifiers & Underwater - Sikament®-100 SC

Anti-Washout Admixture

Sikament®-100 SC is a unique bipolymer anti-washout admixture for the underwater placement of concrete and grout. Sikament®-100 SC meets the requirements of CRD-C661-06. How it Works: Sikament®-100 SC increases mix cohesiveness and imparts a variable viscosity characteristic to concrete and grout. Sikament®-100 SC produces concrete that becomes fluid and flowable when sheared or mechanically agitated. An example would be during pumping operations. This characteristic enables concrete to flow easily through and into confined spaces. The mix will revert to a dense, high viscous, consistency when at rest. This cohesive cement paste matrix promotes high compressive and flexural strength development.

Sikament®-100 SC reduces or eliminates the need to dewater underwater construction sites before concrete construction can take place. Concrete can be placed by pump or tremie directly into areas covered by water. Sikament®-100 SC maintains the concrete matrix integrity during high slump placements and reduces washout from the surface during curing.

• Reduce or eliminate dewatering costs associated with underwater construction.
• Concrete is easy to pump and flows readily into available spaces.
• Segregation and dilution are reduced, in-place compressive and bond strengths are significantly increased.
• Laitance on concrete surface caused by cement paste washout during curing is reduced or eliminated.
• The active slump life of the concrete is doubled without extended delays in setting time.

Usage

Sikament®-100 SC is recommended for underwater placement of concrete and grout in fresh and saltwater environments. Sikament®-100 SC improves underwater “stacking” characteristics when concrete is placed by tremie operations. The ability of concrete mixtures to penetrate and consolidate foundation rock layers is dramatically improved, for example, as required in jetty sealing operations. Sikament®-100 SC may also be used as a water reducing and anti-washout additive for placement into bentonite slurries or similar materials.

Advantages

Sikament®-100 SC reduces or eliminates the need to dewater underwater construction sites before concrete construction can take place. Concrete can be placed by pump or tremie directly into areas covered by water. Sikament®-100 SC maintains the concrete matrix integrity during high slump placements and reduces washout from the surface during curing.

• Reduce or eliminate dewatering costs associated with underwater construction.
• Concrete is easy to pump and flows readily into available spaces.
• Segregation and dilution are reduced, in-place compressive and bond strengths are significantly increased.
• Laitance on concrete surface caused by cement paste washout during curing is reduced or eliminated.
• The active slump life of the concrete is doubled without extended delays in setting time.

Packaging

Sikament®-100 SC is available in 5 gallon (19 liter) pails, 55 gallon (208 liter) drums and bulk delivery.

Color

Brown Liquid

Product Details

Product Information

Shelf Life

Shelf life when stored in dry warehouse conditions between 50 °F and 80 °F (10-27 °C) is one year.

Storage Conditions

Sikament®-100 SC should be stored at above 40 °F (5 °C). If frozen, thaw and agitate thoroughly to return to normal state before use.

Specific Gravity

Approx. 1.22

Application

Application Information

Mixing

Sikament®-100 SC should be added to the fresh concrete after all the other mix ingredients have been blended together. Addition of the Sikament®-100 SC directly into the concrete too early in the mixing may promote clumping of the mix materials.
For best results, the concrete should be prepared in a concrete mixer that can thoroughly shear the materials and blend all of the components. Turbine mixers and central mix plants often perform better than dry batched transit mixers. Insufficient mixing or use of less than recommended quantities of Sikament®-100 SC may result in a concrete mix that is more likely to bleed or separate.

Consumption

Recommended Dosage

Sikament®-100 SC is formulated for use at a rate of approximately 0.5 gallons per cubic yard (10 fl.oz. / #100 cwt.). This proportion is based on a nominal 660 lbs. of cement in the mix with a 0.40 water cement ratio. The amount of Sikament®-100 SC must be proportionately increased when water content is increased. Sikament®-100 SC if used at higher dosages may delay the initial set of concrete. Additional high range water reducing admixtures may be required to obtain desired workability of the concrete.

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