From all chemical

There are also additives that affect the speed of cement setting, hardening of concrete. Antorozoic supplements allow concreting at temperatures below zero. Crash ones are increasingly used — pigmenting additives for concrete, allowing the use of structures without final decoration. Different chemical compounds for waterproofing are also added to concrete. The concrete design should not always be heavy — then gas -forming additives in concrete come to the aid of the designer, allowing it to make it light due to the formation of a porous mass. These are far from all chemical additives that exist, but even a superficial, runaway review shows that the most demanding builder will find for himself what will satisfy his requests.