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A platform for research: civil engineering, architecture and urbanism
High-strength concrete accelerator and preparation method thereof
The invention discloses a high-strength concrete accelerator which comprises aluminum silicate, ammonia monohydrate, sodium chloride, sodium hydroxide and water. According to the accelerator, the hydration reaction of tricalcium aluminate (C3A) and tricalcium silicate (C3S) in the concrete is promoted, so that the accelerated coagulation and hardening of the concrete are accelerated, and the coagulation time after the concrete is poured is shortened; the invention also discloses a preparation method of the high-strength concrete accelerator, which comprises the following steps: putting the weighed aluminum silicate and ammonia monohydrate into a reaction kettle, then adding water for reaction, and heating and stirring the reaction kettle; adding sodium chloride and sodium hydroxide into the reaction kettle, and stirring; adding a naphthalene sulfonic acid-formaldehyde condensate into the solution prepared in the step 2; adding a stabilizer, a chelating agent, an enhancer and an adhesive into the solution prepared in the step 3, heating, stirring and standing to prepare the high-strength concrete accelerator, and the preparation method is simple and convenient and suitable for industrialized production.
本发明公开了一种高强度混凝土速凝剂，包括硅酸铝、一水合氨、氯化钠、氢氧化钠和水；该速凝剂通过促进混凝土中的铝酸三钙(C3A)和硅酸三钙(C3S)的水化反应，进而了加快了和混凝土的加速凝结和硬化，缩短混凝土浇筑完成后的凝结时间；本发明还公开了一种高强度混凝土速凝剂的制备方法，其步骤为：将称取好的硅酸铝和一水合氨放入反应釜中，然后加入水进行反应，并对反应釜进行加热、搅拌；向反应釜中加入氯化钠和氢氧化钠，并进行搅拌；向所述步骤二制得的溶液中加入萘磺酸甲醛缩合物；向所述步骤三制得的溶液中加入稳定剂、螯合剂、强化剂和胶黏剂进行加热搅拌，静置，制得高强度混凝土速凝剂，该制备方法简便，适用于工厂化生产。
High-strength concrete accelerator and preparation method thereof
The invention discloses a high-strength concrete accelerator which comprises aluminum silicate, ammonia monohydrate, sodium chloride, sodium hydroxide and water. According to the accelerator, the hydration reaction of tricalcium aluminate (C3A) and tricalcium silicate (C3S) in the concrete is promoted, so that the accelerated coagulation and hardening of the concrete are accelerated, and the coagulation time after the concrete is poured is shortened; the invention also discloses a preparation method of the high-strength concrete accelerator, which comprises the following steps: putting the weighed aluminum silicate and ammonia monohydrate into a reaction kettle, then adding water for reaction, and heating and stirring the reaction kettle; adding sodium chloride and sodium hydroxide into the reaction kettle, and stirring; adding a naphthalene sulfonic acid-formaldehyde condensate into the solution prepared in the step 2; adding a stabilizer, a chelating agent, an enhancer and an adhesive into the solution prepared in the step 3, heating, stirring and standing to prepare the high-strength concrete accelerator, and the preparation method is simple and convenient and suitable for industrialized production.
本发明公开了一种高强度混凝土速凝剂，包括硅酸铝、一水合氨、氯化钠、氢氧化钠和水；该速凝剂通过促进混凝土中的铝酸三钙(C3A)和硅酸三钙(C3S)的水化反应，进而了加快了和混凝土的加速凝结和硬化，缩短混凝土浇筑完成后的凝结时间；本发明还公开了一种高强度混凝土速凝剂的制备方法，其步骤为：将称取好的硅酸铝和一水合氨放入反应釜中，然后加入水进行反应，并对反应釜进行加热、搅拌；向反应釜中加入氯化钠和氢氧化钠，并进行搅拌；向所述步骤二制得的溶液中加入萘磺酸甲醛缩合物；向所述步骤三制得的溶液中加入稳定剂、螯合剂、强化剂和胶黏剂进行加热搅拌，静置，制得高强度混凝土速凝剂，该制备方法简便，适用于工厂化生产。
High-strength concrete accelerator and preparation method thereof
一种高强度混凝土速凝剂及其制备方法
WEI YING (author) / WANG YONGAN (author) / WANG YUNNAN (author) / ZHENG FUPENG (author) / HUANG TIANJIAO (author) / YANG BO (author) / ZHANG BO (author)
2023-04-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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