Product Data Sheet Safety Data Sheet Show all documents

Sika ViscoFlow®-1000

High range water reducing/superplasticising concrete
admixture with enhanced workability retention

Sika ViscoFlow®-1000 is a liquid admixture for concrete based on unique polycarboxylate polymers technologies. Sika ViscoFlow®-1000 is designed as a high range water reducer or superplasticiser. It is particularly suited for use in concretes that require low water/cement ratios and / or high water reductions with excellent workability retention properties of up to 3 hours.
Sika ViscoFlow®-1000 meets the requirements of BS EN 934-2 table.

  • High range water reductions resulting in higher strengths and densities
  • Extended consistence retention
  • Improved cohesion properties
  • Improved early and ultimate strengths
  • Excellent placement characteristics
  • Improved rheology
  • Improved durability
  • Reduced segregation and bleeding
  • Reduced drying shrinkage
  • Reduced mix costs
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Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika ViscoFlow®-1000 is a unique product that is suitable for the production of ready mixed concrete
  • Applications that require extended consistence retention without delayed setting
  • Suitability for use across broad range of consistence classes from S3 – SF3
  • High performance concrete
  • Self compacting concrete
  • High rise/pumped concrete
  • Slip form concrete
  • Improved effectiveness in higher ambient temperatures
 

Advantages

  • High range water reductions resulting in higher strengths and densities
  • Extended consistence retention
  • Improved cohesion properties
  • Improved early and ultimate strengths
  • Excellent placement characteristics
  • Improved rheology
  • Improved durability
  • Reduced segregation and bleeding
  • Reduced drying shrinkage
  • Reduced mix costs

Packaging

20 litre, 200 litre, 1000 litre IBC

Colour

Clear to slightly hazy liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of BS EN 934-2 Tables 3.1 & 3.2
DoP 02 13 01 01 100 0 000853 1088, certified by Factory Production Control Body 0086, Certificate 541325, and provided with the CE mark
Product Information

Chemical Base

Modified polycarboxylate

Shelf Life

12 months from date of production if stored properly in undamaged containers.

Storage Conditions

Store in dry conditions at temperatures between +5°C and +25°C. Protect from direct sunlight and frost.

Density

1.075 kg/l (at +20°C)

pH-Value

5.0 +/- 1.0

Total Chloride Ion Content

<0.1% w/w (chloride free)

Equivalent Sodium Oxide

<0.35% w/w
Technical Information

Specific Advice

Freezing Point:  +1°C

Air Entrainment:  Negligible, minimal increase

Effect on Setting:  Extension to normal setting time

Effect of Overdosing:  Increased workability and segregation

Application

Application Information

Compatibility

Sika ViscoFlow®-1000 may be combined with many other Sika products.
Important: Always conduct trials before combining products in specific mixes and contact our Technical Service Department for information and advice about any specific combinations.

Dispensing

Sika ViscoFlow®-1000 should be dispensed through suitable calibrated dosing equipment.
Sika ViscoFlow®-1000 is added to the gauging water or added with it into the concrete mixer.

Restrictions

  • When using Sika ViscoFlow®-1000 a suitable mix design has to be taken into account and local material sources shall be trialled.
  • Sika ViscoFlow®-1000 shall not be added to dry cement.
  • Excessive water addition or overdosing may cause bleeding or segregation.
  • Support from our Technical Service Department is recommended.

Frost: If frozen and / or if precipitation has occurred, Sika ViscoFlow®-1000 may be used after thawing slowly at room temperature followed by intensive remixing.
Consumption

Recommended Dosage

0.3 - 0.8% by weight of cement
Application steps

APPLICATION INSTRUCTIONS

APPLICATION METHOD / TOOLS

  • The standard rules of good concreting practice, concerning production and placing, are to be followed.
  • Laboratory trials shall be carried out before concreting on site, especially when using a new mix design or producing new concrete components.
  • Fresh concrete must be cured properly and curing applied as soon as possible.

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