Sika® ViscoCrete®-8670 MN

HIGH PERFORMACE SUPERPLASTICISER

Sika® ViscoCrete®-8670 MN is a third generation superplasticiser for concrete and mortar.
For high range water reducing superplasticisers.

Sika® ViscoCrete®-8670 MN is a powerful superplasticiser based on advanced technology which gives the following advantages :
  • High water reduction, resulting in high density, high strength and reduced permeability.
  • Extended workability in conjunction with subsequent fast strength development.
  • Excellent plasticising effect, resulting in improved flow, placing and compaction characteristics.
  • Reduced shrinkage during curing and reduced creep when hardened.
  • Provides many opportunities for cost improvement e.g.: Cement reduction, More economic mix design, Reduced energy costs for steam curing precast elements, Reduction of potential claims etc.
Sika® ViscoCrete®-8670 MN does not contain chlorides or any other ingredients which promote the corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.
Product Data Sheet Show all documents

Overview

Usage

Sika® ViscoCrete®-8670 MN is a unique multi purpose superplasticiser that is particularly suitable for the production of concrete that demands high early strength with extended workability. Additionally it provides ultra high water reduction and excellent flow characteristics.
With its outstanding combination of workability time and early strength development Sika® ViscoCrete®-8670 MN is used for the following :
  • A wide range of applications where excellent workability and good early strength development are required.
  • Concrete with ultra-high water reduction (up to 30%).
  • High performance concretes
 

Advantages

Sika® ViscoCrete®-8670 MN is a powerful superplasticiser based on advanced technology which gives the following advantages :
  • High water reduction, resulting in high density, high strength and reduced permeability.
  • Extended workability in conjunction with subsequent fast strength development.
  • Excellent plasticising effect, resulting in improved flow, placing and compaction characteristics.
  • Reduced shrinkage during curing and reduced creep when hardened.
  • Provides many opportunities for cost improvement e.g.: Cement reduction, More economic mix design, Reduced energy costs for steam curing precast elements, Reduction of potential claims etc.
Sika® ViscoCrete®-8670 MN does not contain chlorides or any other ingredients which promote the corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.

Packaging

200 L drums (non returnable)
1 000 L IBC’s or tanker delivery on request.

Colour

Liquid / Yellowish

Product Details

Composition

Modified polycarboxylate in water

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.

Total chloride ion content

< 0.1 % w/w

 

Concreting guidance

The standard rules of good concreting practice, concerning production and placing, are to be followed.
Laboratory trials before concreting on site are strongly recommended when using a new mix design or producing new concrete components.
Fresh concrete must be cured properly and as early as possible.

Application

Compatibility

Sika® ViscoCrete®-8670 MN may be combined with the following products:

  • Plastiment® P121R
  • Plastiment® VZ
  • Sika® Fume
  • SikaFibre®

Do not use viscocrete / viscoflow series combined with sikament series.
To produce flowing and / or self-compacting concrete, special concrete mix design is required.
Pre-trials are recommended and mandatory if combinations with the above products are required.
Please consult to our Technical Service Department.

DISPENSING

Sika® ViscoCrete®-8670 MN is added to the gauging water or simultaneously added with i t into the concrete mixer.
To take advantage of the high water reduction, a wet mixing time of at least 60 seconds is recommended.

Recommended dosage

For medium workability:

0.3 % - 0.8 % by weight of cement.

For concrete with high workability, very low water/cement ratio :0.8 % - 2.0 % by weight of cement.

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