Product Data Sheet Show all documents

Sika® Plastiment-25 TM PH

Water-Reducing and Set-Retarding Concrete Admixture

A concrete plasticizer specially designed for Roller Compacted Concrete (RCC) structures.

In Fresh State
  •  Initial setting is delayed allowing time for proper placement and compacting new layer over the retarded RCC, without cold joint
  •  Decrease the mortar of concrete bonding volume
  •  Increase the time available to re-compacting the concrete without damaging the material. After theinitial set heavytransits candamage the newlyhydratedRCC
  •  Increase of the cement efficiency
  •  Diminish the rate of initial heat generation
In Hardened State
  •  Increase the mechanical strengths in any weather conditions
  •  Diminish the heat generation and the cracking risk
  •  Increase the density of the RCC
Product Data Sheet Show all documents

Usage

Sika® Plastiment-25 TM PH is used in structural and mass concrete where long setting times and improved workability are required, such as projects
with:
  •  Large pours, to prevent formation of cold joints in RCC dams etc.
  •  Long travel times from the concrete plant to the site
  •  Difficult placing conditions and detail
  •  High ambient temperature
 

Advantages

In Fresh State
  •  Initial setting is delayed allowing time for proper placement and compacting new layer over the retarded RCC, without cold joint
  •  Decrease the mortar of concrete bonding volume
  •  Increase the time available to re-compacting the concrete without damaging the material. After theinitial set heavytransits candamage the newlyhydratedRCC
  •  Increase of the cement efficiency
  •  Diminish the rate of initial heat generation
In Hardened State
  •  Increase the mechanical strengths in any weather conditions
  •  Diminish the heat generation and the cracking risk
  •  Increase the density of the RCC

Packaging

210 L/drum, 1,000 L/bulk

Colour

Brown Liquid

Product Details

Product Information

Chemical Base

Blend of organic substances

Shelf Life

Min. 1 year if stored properly in original unopened packing

Storage Conditions

Store in dry, cool, shaded place.

Specific Gravity

1.180 - 1.210 kg/L

Total Chloride Ion Content

Nil
Technical Information

Concreting Guidance

All Portland cement Cement Types including sulfate resistant cement

Application

Application Information

Compatibility

Possible to combine with all Sikament®, Sika® AER, but must be added separately to the mix and not premixed prior addition.

Dispensing

Sika® Plastiment-25 TM PH is either added to the gauging water prior to its addition to the dry concrete mix or added separately to wetted concrete mix, further mixing should take place for at least 1 minute per m3.

Restrictions

Trial mixes are recommended to establish exact dosage rates required to suit individual requirements. If assistance is required, please contact the Sika Technical Service Department.

  •  Accurate dispensing equipment should be used
  •  Use an appropriate mixer and do not mix by hand
Consumption

Recommended Dosage

0.5-4.0 L/100 kg of cementitious binder

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