PolyЯRon PC 400 is a high range superplasticizing water reducing and retarding admixture based on modified polycarboxylic ether. This is the admixture of choice where slump retention is extremely important. It can be used in hot weather concreting, long distance hauling of ready mixed concrete, and when truck mixers are made to wait in a queue for a long time before pouring. It increases the dispersion of cement particles by electrostatic repulsion and steric hindrance that enables the water content in the concrete to perform to maximum efficiency accounting to lesser water-cement ratio with improved workability.
PolyЯRon PC 400 is highly suitable for low watercement concrete mixes maintaining higher workability to produce high strength concrete. It exhibits prolonged workability retention especially in high ambient temperatures.
Advantages
- Fluidifies.
- Increases strength.
- Reduces water usage.
- Prevents honey combs.
- Lower permeability.
- Reduces bleeding and seggregation.
- Better slump retention with good workability and pumpability.
- Better placebality.
- Better consolidation
- Improved cohesion and particle dispersion.
- Better strength uniformity.
Application area
Application area PolyЯRon PC400 is suitable for all kinds of high strength, high cement content and low water cement ratio concrete. Typical application includes
- Self compacting concrete.
- Excellent for hot weather concrete.
- Suitable for dense reinforcement elements.
- Suitable for long distance pouring.
- Ideal for pumped concrete.
- Improves durability by increasing ultimate strength, and reducing concrete permeability.
- More suitable for congested reinforcement.
- To avoid cold joints.
- To obtain low heat of hydration.
Dosage
The normal dosage is 0.3 to1 litres per 100kg cement which includes replacements (if any) such as microsilica, GGBFS,calcined clay (metakolin) and fly ash. The optimum dosage should be determined by conducting laboratory/site trials considering proposed mix design, ambient conditions and performance requirements.
Applicable standards
PolyЯRon PC400 complies with ASTM C-494 type B, D and G.
