Foam cement retarder

The product than the large surface area, strong adsorption capacity. Make water, cement, sand and other binder attract each other, to prevent segregation, it can improve its liquidity, increase strength after forming, prevent material segregation in underwater concrete mixing process. After adding Chennai superplasticizer can play retarding water-reducing effect. Such as requiring retarding effect is more obvious, can add acid or acrylamide material. Obtained with a water retention, absorption and storage properties of composite materials. After using concrete has long retarding effect. But chlorine and sulfates, no corrosion of steel role. Technical indicators 1. containing SiO2 MgO Al2O, CaO, etc. 2. An average particle size: 200 mesh 3. pH value: 7 ± 0.5 4. Whiteness:> 60