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A platform for research: civil engineering, architecture and urbanism
Early-strength delayed-coagulation cementing material as well as preparation method and application thereof
The invention provides an early-strength delayed-coagulation type cementing material and a preparation method and application thereof.The early-strength delayed-coagulation type cementing material is prepared from, by weight, 10-30 parts of aluminate cement, 60-90 parts of high-calcium minerals and 0.01-0.6 part of retarder, the content of free calcium oxide in the high-calcium minerals is 2%-40%, the weight ratio of the aluminate cement to the high-calcium minerals is 1: (2-6), and the retarder is 1: (2-6). The retarder is organic acid containing carboxylate radical. The method comprises the following steps: mixing aluminate cement, high-calcium minerals and a retarder to obtain a solid master batch; and mixing the solid master batch with water according to a liquid-solid ratio of 0.15-0.6, and uniformly stirring to prepare the early-strength delayed coagulation type cementing material. By controlling the proportion of the high-calcium mineral, the aluminate cement and the retarder, the setting time of the early-strength delayed-setting type cementing material is shortened, so that the early-strength delayed-setting type cementing material has excellent compressive strength of 2 hours, and the early strength of the cementing material is enhanced.
本发明提供了一种早强缓凝型胶凝材料及其制备方法和应用，早强缓凝型胶凝材料包括以下原料：铝酸盐水泥10～30重量份，高钙矿物60～90重量份，缓凝剂0.01～0.6重量份，其中，高钙矿物中游离氧化钙的含量为2％～40％，铝酸盐水泥与所述高钙矿物的重量比为1:(2～6)，缓凝剂为含有羧酸根的有机酸。本发明方法包括：将铝酸盐水泥、高钙矿物、缓凝剂混合得到固体母料；将固体母料与水混合，液固比为0.15～0.6，搅拌均匀制成早强缓凝型胶凝材料。本发明通过控制高钙矿物、铝酸盐水泥与缓凝剂的比例缩短了早强缓凝型胶凝材料的凝结时间，使其具有优异的2h抗压强度，增强了胶凝材料的早期强度。
Early-strength delayed-coagulation cementing material as well as preparation method and application thereof
The invention provides an early-strength delayed-coagulation type cementing material and a preparation method and application thereof.The early-strength delayed-coagulation type cementing material is prepared from, by weight, 10-30 parts of aluminate cement, 60-90 parts of high-calcium minerals and 0.01-0.6 part of retarder, the content of free calcium oxide in the high-calcium minerals is 2%-40%, the weight ratio of the aluminate cement to the high-calcium minerals is 1: (2-6), and the retarder is 1: (2-6). The retarder is organic acid containing carboxylate radical. The method comprises the following steps: mixing aluminate cement, high-calcium minerals and a retarder to obtain a solid master batch; and mixing the solid master batch with water according to a liquid-solid ratio of 0.15-0.6, and uniformly stirring to prepare the early-strength delayed coagulation type cementing material. By controlling the proportion of the high-calcium mineral, the aluminate cement and the retarder, the setting time of the early-strength delayed-setting type cementing material is shortened, so that the early-strength delayed-setting type cementing material has excellent compressive strength of 2 hours, and the early strength of the cementing material is enhanced.
本发明提供了一种早强缓凝型胶凝材料及其制备方法和应用，早强缓凝型胶凝材料包括以下原料：铝酸盐水泥10～30重量份，高钙矿物60～90重量份，缓凝剂0.01～0.6重量份，其中，高钙矿物中游离氧化钙的含量为2％～40％，铝酸盐水泥与所述高钙矿物的重量比为1:(2～6)，缓凝剂为含有羧酸根的有机酸。本发明方法包括：将铝酸盐水泥、高钙矿物、缓凝剂混合得到固体母料；将固体母料与水混合，液固比为0.15～0.6，搅拌均匀制成早强缓凝型胶凝材料。本发明通过控制高钙矿物、铝酸盐水泥与缓凝剂的比例缩短了早强缓凝型胶凝材料的凝结时间，使其具有优异的2h抗压强度，增强了胶凝材料的早期强度。
Early-strength delayed-coagulation cementing material as well as preparation method and application thereof
一种早强缓凝型胶凝材料及其制备方法和应用
ZUO RANFANG (author) / WANG XIA (author) / ZHANG DONG (author) / DONG YANG (author) / ZHUO JINDE (author) / GONG SIYU (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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