| 摘要 |
FIELD: manufacture of building materials. SUBSTANCE: additive with additionally included amines, more specifically urea or triethanolamine, contains, wt %: chloride salt (hardening accelerator) 14-30, sodium or calcium formate (plasticizer) 6-10, amines 7- 14, and water - the balance. EFFECT: increased strength upon hardening of concretes under natural conditions and when using thermomoist treatment. 3 cl, 2 tbl |
