Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of underwater super-retarded concrete
The invention discloses a preparation method of underwater super-retarded concrete, and relates to the technical field of high polymer materials. The preparation method comprises the following steps: crushing bentonite and kaolin, calcining the crushed bentonite and kaolin at a high temperature in a nitrogen atmosphere to obtain calcined particles, uniformly stirring the calcined particles, copper sulfate, quick lime and water in a stirrer, and reacting for 6-10 hours to obtain a pasty viscous mixture; the preparation method comprises the following steps: mixing cane molasses, ethyl acetate, melamine, polyol, anhydride and water, and heating for reaction to obtain a retarder intermediate; stirring and mixing the pasty viscous mixture, the retarder intermediate, Portland cement, isocyanate, aluminum lactate, sodium lignin sulfonate, calcium chloride and water, injecting the mixture into a mold, and performing curing and demolding to obtain the concrete. Raw materials such as ethyl acetate, melamine, benzoic anhydride, isocyanate, aluminum lactate, sodium lignin sulfonate and calcium chloride have influences on the strength, initial setting time and final setting time of concrete.
本发明公开了一种水下超缓凝混凝土的制备方法，涉及高分子材料技术领域。其包括以下步骤：将膨润土、高岭土粉碎后，在高温及氮气氛围下煅烧，得到煅烧后的颗粒，接着，将煅烧后的颗粒、硫酸铜、生石灰、水在搅拌机内搅拌均匀，反应6h‑10h后，得到糊状粘稠混合物；将甘蔗糖蜜、乙酸乙酯、三聚氰胺、多元醇、酸酐及水进行混合，加热反应，得到缓凝剂中间体；将糊状粘稠混合物、缓凝剂中间体、硅酸盐水泥、异氰酸酯、乳酸铝、木质素磺酸钠、氯化钙及水，搅拌混合并注入模具，进行养护脱模后，即得。乙酸乙酯、三聚氰胺、苯甲酸酐、异氰酸酯、乳酸铝、木质素磺酸钠、氯化钙等原料对于混凝土的强度、初凝时间及终凝时间均有影响。
Preparation method of underwater super-retarded concrete
The invention discloses a preparation method of underwater super-retarded concrete, and relates to the technical field of high polymer materials. The preparation method comprises the following steps: crushing bentonite and kaolin, calcining the crushed bentonite and kaolin at a high temperature in a nitrogen atmosphere to obtain calcined particles, uniformly stirring the calcined particles, copper sulfate, quick lime and water in a stirrer, and reacting for 6-10 hours to obtain a pasty viscous mixture; the preparation method comprises the following steps: mixing cane molasses, ethyl acetate, melamine, polyol, anhydride and water, and heating for reaction to obtain a retarder intermediate; stirring and mixing the pasty viscous mixture, the retarder intermediate, Portland cement, isocyanate, aluminum lactate, sodium lignin sulfonate, calcium chloride and water, injecting the mixture into a mold, and performing curing and demolding to obtain the concrete. Raw materials such as ethyl acetate, melamine, benzoic anhydride, isocyanate, aluminum lactate, sodium lignin sulfonate and calcium chloride have influences on the strength, initial setting time and final setting time of concrete.
本发明公开了一种水下超缓凝混凝土的制备方法，涉及高分子材料技术领域。其包括以下步骤：将膨润土、高岭土粉碎后，在高温及氮气氛围下煅烧，得到煅烧后的颗粒，接着，将煅烧后的颗粒、硫酸铜、生石灰、水在搅拌机内搅拌均匀，反应6h‑10h后，得到糊状粘稠混合物；将甘蔗糖蜜、乙酸乙酯、三聚氰胺、多元醇、酸酐及水进行混合，加热反应，得到缓凝剂中间体；将糊状粘稠混合物、缓凝剂中间体、硅酸盐水泥、异氰酸酯、乳酸铝、木质素磺酸钠、氯化钙及水，搅拌混合并注入模具，进行养护脱模后，即得。乙酸乙酯、三聚氰胺、苯甲酸酐、异氰酸酯、乳酸铝、木质素磺酸钠、氯化钙等原料对于混凝土的强度、初凝时间及终凝时间均有影响。
Preparation method of underwater super-retarded concrete
一种水下超缓凝混凝土的制备方法
SUN SHUGUANG (Autor:in) / WANG JUN (Autor:in) / YU ZHAO (Autor:in) / ZHANG XIANPENG (Autor:in) / DUAN DEYAO (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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