| 摘要 |
The invention relates to building materials. A complex additive to concrete mixtures and mortars comprises the mixture of salts based on sodium thiosulphate and rhodanate and/or plasticizers of amkiroz type, polynaphthalene sulfonates (S-Z), technical lignosulfonates, polycarboxylates, acrylates. The additive additionally comprises potassium phosphate monosubstituted in such component ratio, mass %: the mixture of salts based on sodium thiosulphate and rhodanate and/or plasticizers of amkiroz type, polynaphthalene sulfonates, technical lignosulfonates, polycarboxylates, acrylates – 95-99.5; potassium phosphate monosubstituted – the rest. The invention provides the increasing of durability in all stages of hardening, freeze resistance at keeping or increasing of movability of cement mortar. |
