Concrete Admixture:high-efficiency Csa Expansive Agent

The properties of High-efficiency CSA Expansive Agent conform to the standards of the manufacturer and to the Chinese relevant standards. Characteristics 1.Low alkalinity. High-efficiency CSA Expansive Agent has a very low alkali content (R2O<0.3%) which is beneficial to avoid AAR in concrete. 2.Short stable stage of expansion. The stable stage of expansion is not more than 14 days, thus the ultimate strength of concrete is not affected. 3.Low dosage and high expansion capacity. The normal dosage of High-efficiency CSA Expansive Agent is 6~8% by the weight of ordinary cement, which is lower compared with other expansive additives such as UEA and CEA (their dosages are about 10~12% by the weight of cement) in the market. Features by using it 1.Prevents cracking due to drying shrinkage and hydration heats; 2.Increases the water tightness of concrete and thus is useful for waterproofing buildings; 3.Enables the manufacture of high strength concrete products through chemical prestressing.