Sika Film

Sika® ViscoCrete®-1250

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High Range Water Reducer – HWR

Sika® ViscoCrete®-1250 is a third generation superplasticiser used to produce soft plastic concrete as well as state of the art, self compacting concrete (SCC) depending on dose rate.

When using Sika® ViscoCrete®-1250, the following concrete properties are obtained:

  • High workability, flow ability and finish ability
  • Extremely high water reduction can be achieved, resulting in high early strength concrete.
  • Improved shrinkage and creep behaviour

 

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Description

Usage

Sika® ViscoCrete®-1250 is suitable for the production of the following types of concrete

  • Hot weather concrete and concrete with extended transportation or placing time.
  • Concrete requiring high water reduction.
  • High strength concrete.
  • Self-compacting concrete (SCC) or Super workable concrete.

Advantages

When using Sika® ViscoCrete®-1250, the following concrete properties are obtained:

  • High workability, flow ability and finish ability
  • Extremely high water reduction can be achieved, resulting in high early strength concrete.
  • Improved shrinkage and creep behaviour
  • Excellent flow ability achieved, results in better placement and compaction of the concrete.
  • Suitable for the production of Self Compacting Concrete and Super workable concrete.
  • No added chlorides

Packaging

  • Bulk deliveries
  • 1000 litre IBC
  • 205 litre drum
  • 10 litre container

Colour

Brown liquid

Sustainability / Certifications / Approvals

 

APPROVALS / CERTIFICATES

Sika® ViscoCrete®-1250 will meet and exceed all requirements of AS1478.1-2000 High Range Water Reducing Admixture.

Product Information

 

Composition

Aqueous solution of modified co-polymers.

Shelf life

Stored at temperatures between 5°C and 35°C, protected from direct sunlight, shelf life is one (1) year.

Storage conditions

Store at temperature between 5°C and 35°C, protected from direct sunlight .

Specific Gravity

1.07 g/cm3

Application Information

 

Compatibility

Sika® ViscoCrete®-1250 can be used in conjunction with all Sika Concrete Admixtures, with the exclusion of Sikament NN.

Dispensing

Sika® ViscoCrete®-1250 is added together with the batching water. For optimum utilisation of the high range water reduction we recommend thorough mixing at a minimum wet mixing time of 60 seconds per cubic metre after the admixture addition.

The addition of the slump water, to fine tune concrete consistency, should only be started after 2/3 of the wet mixing time after the admixture  addition, to avoid surplus water in the concrete.

Do not add to a dry mix.

Consumption

 

Recommended Dosage

Typical dosage for soft concrete production is 350 ml - 1500 ml per 100 kg of total cementitious material. For self-compacting concrete, typical dosage is 900 ml - 3000 ml per 100kg of total cementitious material.

 

Sika ViscoCrete-1250  Safety Data Sheet (SDS)
Sika ViscoCrete-1250 Product Data Sheet (PDS)

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Sika® ViscoCrete®-1250

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