Superplasticizer Powder Poly-Carboxylate

1. Application Method
1) Poly-carboxylate is used to produce high performance, high strength and flowable concrete.
2) Dosage of Poly-carboxylate is determined according to the designated concrete mix through trial mixing.
3) Poly-carboxylate is dosed either together with water or after the addition of water. It shows more effective when Poly-carboxylate is dosed after the addition of water.
2.Packing
Liquid :200kg/drum or IBC drum
Powder:  25kg/bag or 25kg/drum
3.Dosage:
Different solid contents have different dosages in the cement, as follows.
1)powder(40%) : 0.4~0.6
2)liquid:0.2~0.3%
 (20% water solution) Dosage (% of Cem)4. About
Polycarboxylate is a superplasticizer for high performance concrete, high strength concrete, high  volume fly ash/slag concrete and grouting/self-leveling screed/mortar.

1) High early strength: Significant increase of early strength and 28d strength.
2) Low slump lose: Great reduction of  slump lose.
3) Excellent durability: Reduction of cracking , shrinkage and creep.
4) High water reduction: Water reduction more than 25% according to different application.
5) Environmental friendly products: Non pollution during production.

3.Technology
Polycarboxylate-based water reducer is a kind of superplasticizer emerged in the early 80' s. It is mainly used in cement concrete. In chemistry, Polycarboxylate-based is an organic and polymeric electrolyte. It belongs to a polymer surfactant. Therefore, it can also be applied in other paste materials such as gypsum products and ceramic products to reduce water content.
Polycarboxylate is a weak electrolyte. It can only be fully dissolved in an alkaline solution .It can compound with cations in cement/water system to control the cement hydration process and thus to reduce the slump loss of the concrete. Polycarboxylate achieves its water reducing effect through the yield of electrostatic repulsion and steric hindrance when it is absorbed to the cement particles. Hence, Polycarboxylate is the most effective superplasticizer for cement concrete.
Polycarboxylate is a raw material for superplasticizer. It is recommended that applicants should determine the Polycarboxylate dosage in their own formulation according to their trial runs.