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Sika® ViscoCrete®-20 HE High Range Water Reducer / Superplasticiser

Composition： Aqueous solution of modified polycarboxylates
Packaging： 1000 L IBC or 200 L drum
Appearance / Colour: Clear Liquid
Shelf life: 12 months from date of production
Density: 1.07 ± 0.02 kg/l
pH-Value: 4 ± 1
Total chloride ion content: ≤ 0.1 %

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Email: cathyliu@yaojietech.com
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Model:
Sika® ViscoCrete®-20 HE
Brand:
Sika
Code:
20HE

Product Description

Sika® ViscoCrete®-20 HE is a liquid admixture for concrete and mortar which is used as high range water reducer or superplasticiser. Sika® ViscoCrete®-20 HE is designed to work on a combination of electrostatic adsorption and steric repulsion effects allowing solid particles to be effectively dispersed. Therefore a high level of fluidity and plasticising can be reached with a high water reduction which provides many advantages.

USES

Production of concrete mixes which require high early strength development, powerful water reduction and improved flowability.

▪ Precast concrete

▪ Fast-track concrete

▪ In situ concrete requiring fast stripping time

▪ Self Compacting Concrete (SCC)

CHARACTERISTICS / ADVANTAGES

▪ High water reduction

▪ High final density and strength properties

▪ Reduced shrinkage, creep, water permeability, etc

▪Improved flowability, placing and compacting behaviour

▪ Improved surface finish

▪ Increased early strength development

▪ Early removal of formwork

▪ Reduced curing

▪ Does not contain chlorides

▪Suitable for use in reinforced and pre-stressed concrete

Recommended dosage

0.2 to 2 % by weight of binder, according to the workability and the requested performance.

Compatibility

Sika® ViscoCrete®-20 HE may be combined with many other Sika products. Trials must always be carried out before combining products in specific

mixes. Contact Sika Technical Services for additional information and any specific combinations.

Dispensing

Sika® ViscoCrete®-20 HE is added to the gauging water or added with it into the concrete mixer.To achieve the optimum performance, a wet mixing

time of at least 60 seconds is recommended. To avoid excess water in the concrete, the final dosage must begin after 2/3 of the wet mixing time.

Restrictions

Sika® ViscoCrete®-20 HE must not be added to dry cement.

water reducer Superplasticiser ViscoCrete

Sika® ViscoCrete®-20 HE High Range Water Reducer / Superplasticiser

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