Product Data Sheet Show all documents
Sika® Plastiment-25 TM PH

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 recompacting the
concrete without damaging the material. After the initial set heavy transits can damage the newly hydrated RCC
  •  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 recompacting the
concrete without damaging the material. After the initial set heavy transits can damage the newly hydrated RCC
  •  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

12 months from date of production if stored properly in undamaged

unopened, original sealed packaging.

Storage Conditions

Store in cool and dry conditions at temperatures above +5°C, well

ventilated place away from ignition sources, heat or flame. Protect from

direct sunlight.

Total Chloride Ion Content

Nil

Specific gravity

Approximately 1.14
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.
Consumption

Recommended Dosage

0.5-4.0 L/100 kg of cementitious binder

Documents