Product Data Sheet Safety Data Sheet Show all documents

SikaPlast® R 8189

(former MasterPolyheed® R 8189)

High Performance Mid-Range Concrete Water Reducer

SikaPlast R 8189 is a formulated liquid admixture tailored for making superior and durable concrete, with special additives incorporated in the formulation to facilitate placing and finishing. SikaPlast R 8189 is a powerful plasticizer which disperses and deflocculates cement particles while delaying the hydration process, thereby retarding the initial and final set. It can be used to improve workability without the addition of extra water, or to allow reductions in the free water content. Due to improved dispersion of the cement particles the process of hydration proceeds under the optimum conditions, leading to improved strength characteristics with or without reduction in free water.  SikaPlast R 8189 is compatible with all type of Portland cements meeting recognized international standards. For use with other special cements, please contact Sika Representative.

  • Good water               Helps in achieving better.
  • Reduction                 durability. Improves compressive,                                      flexural and bond strengths.
  • Good workability      Easier pumpability & placement.
  • Good cohesion         Reduces segregation.
  • Reduced                    Improves watertightness of
  • Permeability             hardened concrete at w/c <0.55
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Generally, various types of concrete where set retardation and superior performance are required
  • Improving quality of conventionally placed concrete and pumped concrete.
  • Improving plain, reinforced, precast, prestressed, light weight. mass concrete including RCC.
  • Slip-formed concrete, high strength mixes, to control set of concrete particularly in high temperature conditions.  

Advantages

  • Good water               Helps in achieving better.
  • Reduction                 durability. Improves compressive,                                      flexural and bond strengths.
  • Good workability      Easier pumpability & placement.
  • Good cohesion         Reduces segregation.
  • Reduced                    Improves watertightness of
  • Permeability             hardened concrete at w/c <0.55

Packaging

1,000 L / IBC

Colour

Brown Liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Complies with ASTM C 494 Type A and D
Product Information

Shelf life

12 months from the date of production If stored properly in undamaged, 
original, sealed packaging

Storage conditions

Store at temperatures between +5°C and +40°C. Protect from direct sun-
light and frost.

Density

1.140 - 1.160 kg/L @ 25°C

pH-Value

8.0 - 10.0

Application

Application Information

Dispensing

SikaPlast R 8189 can be added into the mixing water or can be added to the wet concrete after the mixing water has been added. The addition of SikaPlast R 8189 to a dry concrete mix is not recommended. A separate dispenser and feed line must be used.

Consumption

Recommended dosage

SikaPlast R 8189 is recommended for use at a dosage rate of 300-600ml per 100 kg of cementitious materials. The optimum dosage of SikaPlast R 8189 is dependent on various factors including materials and conditions that would be experienced at site. Variations in the job conditions and concrete making materials employed may require dosage rates outside the recommended range. Consult Sika representative for assistance in determining the rate dosage.

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