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Low-temperature fast-curing concrete and preparation method thereof
The invention discloses a low-temperature fast-curing concrete and a preparation method thereof, and belongs to the field of civil engineering. The technical problems that existing concrete is long infinal setting time and low in structural strength under a low-temperature or ultralow-temperature condition are solved. The product is formed by mixing a solid-phase material and a liquid-phase material, wherein the solid-phase material is formed by mixing cement, sand, stone, a phase change energy storage mineral material and aluminum sulfate; and the liquid phase material is prepared from diethanol amine, a water reducing agent, an air entraining agent and water. Through the composition and proportion of concrete admixture, rapid solidification of concrete under a low-temperature conditionis directly realized, and the problem of concrete construction under a low-temperature condition is solved. Meanwhile, the concrete is suitable for pumping and spraying construction modes, rapid solidification of the concrete can be achieved under the condition that the temperature is smaller than or equal to -5 DEG C, the final solidification time is smaller than or equal to 15 minutes, the solidification time is smaller than or equal to 4 hours, and the coagulation strength is larger than or equal to C20.
一种低温快速固化混凝土及其制备方法。本发明属于土木工程领域。本发明解决了现有混凝土在低温或超低温条件下终凝时间长、结构强度低的技术问题。产品由固相材料和液相材料混合而成；所述固相材料由水泥、砂、石、相变储能矿物材料和硫酸铝混合而成；所述液相材料由二乙醇胺、减水剂、引气剂和水制备而成。本发明通过混凝土掺拌料组成与比例，直接实现低温条件下混凝土的快速固化，解决低温条件混凝土施工的难题。同时，该混凝土适用于泵送和喷射的施工方式，可在温度≤‑5℃的条件下实现混凝土快速凝固，终凝时间≤15分钟，固化时间≤4小时，混凝度强度≥C20。
Low-temperature fast-curing concrete and preparation method thereof
The invention discloses a low-temperature fast-curing concrete and a preparation method thereof, and belongs to the field of civil engineering. The technical problems that existing concrete is long infinal setting time and low in structural strength under a low-temperature or ultralow-temperature condition are solved. The product is formed by mixing a solid-phase material and a liquid-phase material, wherein the solid-phase material is formed by mixing cement, sand, stone, a phase change energy storage mineral material and aluminum sulfate; and the liquid phase material is prepared from diethanol amine, a water reducing agent, an air entraining agent and water. Through the composition and proportion of concrete admixture, rapid solidification of concrete under a low-temperature conditionis directly realized, and the problem of concrete construction under a low-temperature condition is solved. Meanwhile, the concrete is suitable for pumping and spraying construction modes, rapid solidification of the concrete can be achieved under the condition that the temperature is smaller than or equal to -5 DEG C, the final solidification time is smaller than or equal to 15 minutes, the solidification time is smaller than or equal to 4 hours, and the coagulation strength is larger than or equal to C20.
一种低温快速固化混凝土及其制备方法。本发明属于土木工程领域。本发明解决了现有混凝土在低温或超低温条件下终凝时间长、结构强度低的技术问题。产品由固相材料和液相材料混合而成；所述固相材料由水泥、砂、石、相变储能矿物材料和硫酸铝混合而成；所述液相材料由二乙醇胺、减水剂、引气剂和水制备而成。本发明通过混凝土掺拌料组成与比例，直接实现低温条件下混凝土的快速固化，解决低温条件混凝土施工的难题。同时，该混凝土适用于泵送和喷射的施工方式，可在温度≤‑5℃的条件下实现混凝土快速凝固，终凝时间≤15分钟，固化时间≤4小时，混凝度强度≥C20。
Low-temperature fast-curing concrete and preparation method thereof
一种低温快速固化混凝土及其制备方法
LI CHUNXIANG (author) / JIANG ZHAOHUA (author)
2020-04-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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