Sika® ViscoCrete® SC-305 ID

SUPERPLASTICISER FOR SPRAYED CONCRETE

Sika® ViscoCrete® SC-305 ID is a customised third generation polycarboxylate polymer admixture for shotcrete application. The polymer significantly reduces water with improved slump life of the mix. Developed using nano technology, the specific polymer with a long molecular chain and attached side chains effectively disperse cement particles and through steric hindrance preserve slump life for long periods without retardation, while giving excellent hydration control.

  • Flowable concrete with low water cement ratios
  • Maintain slump life with no retardation even at high temperatures
  • Increased early and ultimate strengths
  • Eliminates retempering the mix with additional admixture (up to 4 hours)
  • Lower mix temperatures are experienced in comparison to napthalene dosed mixes
  • Mix compatibility with a far greater range of cement types, pozzolans, fibers and other materials
  • Higher water reduction, in a range of 30 – 40 %, hence optimizing cementitious materials
Product Data Sheet Show all documents

Overview

Usage

Admixture for shotcrete application  

Advantages

  • Flowable concrete with low water cement ratios
  • Maintain slump life with no retardation even at high temperatures
  • Increased early and ultimate strengths
  • Eliminates retempering the mix with additional admixture (up to 4 hours)
  • Lower mix temperatures are experienced in comparison to napthalene dosed mixes
  • Mix compatibility with a far greater range of cement types, pozzolans, fibers and other materials
  • Higher water reduction, in a range of 30 – 40 %, hence optimizing cementitious materials

Packaging

1 000 L bulk delivery

Colour

Liquid / Dark Brown

Product Details

Composition

Modified co-polymer

Shelf life

12 months from date of production if stored properly in undamaged un-opened, original sealed packaging.

Storage conditions

Store in dry conditions at temperatures between +10 °C and +35 °C. Protect from direct sunlight and frost.

pH-Value

6.0 ± 2.0

Total chloride ion content

< 0.1 % w/w

Application

DISPENSING

Optimal concrete plasticizing effect (maximum water reduction) is obtained if Sika Sika® ViscoCrete® SC-305 ID is introduced into concrete after the cement is wet out. Thorough mixing is essential to achieve the admixtures maximum dispersion effect.

Recommended dosage

The recommended dosage rate will vary between 400 – 1600 mls/ 100 kgs of cementitious material. Contact your local Sika Representative on special mixes.

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