What is concrete siliceous density agent? what’s the effect?

concrete siliceous density agent implementation standard: gb8076-2003. function: the concrete siliceous density agent makes the concrete slightly expand and dense, and has the functions of moisture-proof, waterproof, anti-seepage and anti-cracking. the anti-permeability grade of concrete mixed with this product can reach p20. the frost resistance of concrete mixed with this product can reach 300 times.…