| 摘要 |
CONCRETE ADMIXTURE COMPOSITIONS A chloride-free cold-weather set accelerator for concrete and cement mortar comprises A) 100 parts by weight of at least one soluble inorganic salt having freezing point depressant properties B) from 13.3 to 30 parts by weight of at least one superplasticizer C) from 3 to 30 parts by weight of at least one inorganic early set and strength accelerator, and D) from 0 to 10 parts by weight of at least one organic set accelerator. |
