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Concrete anti-freezing agent and preparation method and application thereof
The invention discloses a concrete anti-freezing agent which comprises glycerol, triethanolamine, sodium sulfate, sodium dodecyl sulfate, calcium chloride, a water reducing agent, water and a nanometer seed crystal early strength agent, and the mass of the nanometer seed crystal early strength agent is 100%. The nano seed crystal early strength agent comprises 10 wt%-15 wt% of calcium nitrate, 20 wt%-25 wt% of sodium silicate and an optional dispersing agent and/or a reaction product comprising 10 wt%-15 wt% of calcium nitrate, 20 wt%-25 wt% of sodium silicate and an optional dispersing agent. The invention also discloses a preparation method of the concrete anti-freezing agent and application of the concrete anti-freezing agent in concrete engineering. The anti-freezing agent does not need to use nitrate and nitrite components, has the advantages of safety and environmental protection, improves the durability of the concrete, can improve the hardening speed of the concrete while preventing freezing, and further reduces the risk of frost heaving.
本发明公开了一种混凝土防冻剂，其包括丙三醇、三乙醇胺、硫酸钠、十二烷基磺酸钠、氯化钙、减水剂、水和纳米籽晶早强剂，其中，以所述纳米籽晶早强剂的质量为100％计，所述纳米籽晶早强剂包含10wt％‑15wt％的硝酸钙、20wt％‑25wt％的硅酸钠和任选的分散剂和/或包含10wt％‑15wt％的硝酸钙、20wt％‑25wt％的硅酸钠及任选的分散剂的反应产物。本发明还公开了该混凝土防冻剂的制备方法及其在混凝土工程中的应用。本发明的防冻剂无需使用硝酸盐和亚硝酸盐成分，具有安全、环保的优势，且其使混凝土耐久性得到了提升，在防冻的同时可以使混凝土硬化速度提高，进一步降低了冻胀风险。
Concrete anti-freezing agent and preparation method and application thereof
The invention discloses a concrete anti-freezing agent which comprises glycerol, triethanolamine, sodium sulfate, sodium dodecyl sulfate, calcium chloride, a water reducing agent, water and a nanometer seed crystal early strength agent, and the mass of the nanometer seed crystal early strength agent is 100%. The nano seed crystal early strength agent comprises 10 wt%-15 wt% of calcium nitrate, 20 wt%-25 wt% of sodium silicate and an optional dispersing agent and/or a reaction product comprising 10 wt%-15 wt% of calcium nitrate, 20 wt%-25 wt% of sodium silicate and an optional dispersing agent. The invention also discloses a preparation method of the concrete anti-freezing agent and application of the concrete anti-freezing agent in concrete engineering. The anti-freezing agent does not need to use nitrate and nitrite components, has the advantages of safety and environmental protection, improves the durability of the concrete, can improve the hardening speed of the concrete while preventing freezing, and further reduces the risk of frost heaving.
本发明公开了一种混凝土防冻剂，其包括丙三醇、三乙醇胺、硫酸钠、十二烷基磺酸钠、氯化钙、减水剂、水和纳米籽晶早强剂，其中，以所述纳米籽晶早强剂的质量为100％计，所述纳米籽晶早强剂包含10wt％‑15wt％的硝酸钙、20wt％‑25wt％的硅酸钠和任选的分散剂和/或包含10wt％‑15wt％的硝酸钙、20wt％‑25wt％的硅酸钠及任选的分散剂的反应产物。本发明还公开了该混凝土防冻剂的制备方法及其在混凝土工程中的应用。本发明的防冻剂无需使用硝酸盐和亚硝酸盐成分，具有安全、环保的优势，且其使混凝土耐久性得到了提升，在防冻的同时可以使混凝土硬化速度提高，进一步降低了冻胀风险。
Concrete anti-freezing agent and preparation method and application thereof
一种混凝土防冻剂及其制备方法和应用
MA XUEYING (author) / WANG HONGWEI (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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