Product Data Sheet Safety Data Sheet Show all documents

Sika® Plastiment® BV-40

Water reducing admixture for concrete

Sika® Plastiment® BV-40 is a versatile and economical concrete plasticiser with set retarding properties.

Sika® Plastiment® BV-40 is a powerful plasticiser which acts through several different mechanisms including surface adsorption separating the cementitious binder particles due to the electrokinetic potential. The following advantageous properties are achieved:
  • Superior plasticising effect, resulting in improved flow, placing and compaction characteristics
  • Keeps extended workability time with many difficult cements despite water reduction
  • Water reduction, resulting in improved density, higher strength and reduced permeability
  • Reduced tendency to shrinkage and creep
  • Reduced carbonation of the concrete
  • Improved cohesion of the concrete
Sika® Plastiment® BV-40 does not contain chlorides or any other ingredients which promote corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika® Plastiment® BV-40 is especially suitable for production of ready mixed and site batched concrete with normal transportation times and workability requirements, high water reduction and improved flow characteristics. Sika® Plastiment® BV-40 is recommended for the following:
  • Concrete with medium water reduction (up to 10 %)
  • Concrete with reduced amount of fines or difficult aggregates
  • Concrete with difficult placing conditions
  • High temperatures and long hauls
 

Advantages

Sika® Plastiment® BV-40 is a powerful plasticiser which acts through several different mechanisms including surface adsorption separating the cementitious binder particles due to the electrokinetic potential. The following advantageous properties are achieved:
  • Superior plasticising effect, resulting in improved flow, placing and compaction characteristics
  • Keeps extended workability time with many difficult cements despite water reduction
  • Water reduction, resulting in improved density, higher strength and reduced permeability
  • Reduced tendency to shrinkage and creep
  • Reduced carbonation of the concrete
  • Improved cohesion of the concrete
Sika® Plastiment® BV-40 does not contain chlorides or any other ingredients which promote corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.

Packaging

200 Litre drums

1000 Litre IBC’s

Colour

Brown liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Complies with A.S.T.M. C494-81 type A & D
Product Information

Chemical Base

Water solution of modified lignosulfonates

Shelf Life

12 months from date of production if stored properly in undamaged, unopened, originally sealed packaging.

Storage Conditions

Storage at temperatures between +5°C and +30°C. Protect from direct sunlight, frost and contamination.

Density

~ 1.20 kg/litre (at +20°C)

pH-Value

~ 6.0
Technical Information

Concreting Guidance

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

Application

Application Information

Compatibility

Sika® Plastiment® BV-40 may be combined with many other Sika products. Important: Always conduct trials before combining products in specific mixes and contact Sika Technical Service for more information and advice.

Dispensing

Sika® Plastiment® BV-40 is added to the gauging water or added with it into the concrete mixer. To take advantage of the workability enhancing ability, a wet mixing time, which is depending on the mixing conditions and mixer performance, of at least 60 seconds is recommended. To avoid excess water in the concrete, the final dosage must begin only after 2/3 of the wet mixing time.

Restrictions

Sika® Plastiment® BV-40 shall not be added to dry cement.
Consumption

Recommended Dosage

0.2 - 0.5 % by weight of cement/binder

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