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发明授权
CN105271882B 一种超低温混凝土防冻剂及其应用 失效 - 权利终止 转让

一种超低温混凝土防冻剂及其应用
摘要：
本发明公开了一种超低温混凝土防冻剂及其应用，防冻剂组分及各组分的质量份数如下：水化硅酸钙10～20份，橡胶粉4～8份，亚硝酸钠3.5～8.7份，硫酸钠2.8～6.5份，有机醇胺2～5份，三萜皂苷0.1～0.7份，巯基乙酸2.35～5.48份，丙烯酰胺6.4～10.5份，十二烷基磺酸钠1.0～1.8份，三聚氰胺2～4份，葡萄糖酸钠8～10份。本发明的防冻剂最低可适用于‑50℃环境，掺量为混凝土中水泥质量20%，‑50℃条件下，混凝土‑7+28d强度可达到标养28天混凝土强度，产品性能可达到GB475标准要求。
摘要（英）：

The invention discloses an ultralow temperature concrete antifreeze agent and an application thereof. The antifreeze agent comprises, by mass, 10-20 parts of calcium silicate hydrate, 4-8 parts of rubber powder, 3.5-8.7 parts of sodium nitrite, 2.8-6.5 parts of sodium sulfate, 2-5 parts of organic alcohol amine, 0.1-0.7 parts of triterpenoid saponin, 2.35-5.48 parts of thioglycolic acid, 6.4-10.5 parts of acrylamide, 1.0-1.8 parts of sodium dodecanesulphonate, 2-4 parts of melamine and 8-10 parts of sodium gluconate. The antifreeze agent can adapt to environment with a lowest temperature of -50DEG C, the dosage of the antifreeze agent in concrete is 20% of the mass of cement in concrete, the -7+28d strength of concrete can reach standard curing 28d concrete strength, and product performances can reach GB475 standard requirements.

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