A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-strength quick-setting cementing material as well as preparation method and application thereof
The invention provides a high-strength quick-setting cementing material as well as a preparation method and application thereof. The high-strength quick-setting cementing material comprises the following components in parts by weight: 30-75 parts of aluminate cement, 25-70 parts of high-calcium minerals and 0.02-0.5 part of a retarder, wherein the content of free calcium oxide in the high-calcium mineral is 2%-40%, the retarder is organic acid containing carboxylate radicals, and the weight ratio of the aluminate cement to the high-calcium mineral is preferably (0.5-2): 1. The preparation method comprises the following steps: mixing aluminate cement and high-calcium minerals to obtain a solid master batch; the solid master batch and water are mixed, the solid-to-liquid ratio of the solid master batch to the water is 0.15-0.6, and the mixture is evenly stirred to prepare the high-strength quick-setting type cementing material. By controlling the adding proportion of the high-calcium minerals, the aluminate cement and the retarder, the setting time of the cementing material is shortened, and the cementing material has high early strength.
本发明提供了一种高强速凝型胶凝材料及其制备方法和应用，高强速凝型胶凝材料包括以下重量份的组分：铝酸盐水泥30～75重量份，高钙矿物25～70重量份，缓凝剂0.02～0.5重量份；其中，高钙矿物中游离氧化钙的含量为2％～40％，缓凝剂为含有羧酸根的有机酸，所述铝酸盐水泥与所述高钙矿物的重量比优选为(0.5～2)：1。本发明的制备方法包括：将铝酸盐水泥、高钙矿物混合得到固体母料；将固体母料与水混合，固体母料与水的固液比为0.15～0.6，搅拌均匀制成高强速凝型胶凝材料。本发明通过控制高钙矿物、铝酸盐水泥与缓凝剂的添加比例，缩短了胶凝材料的凝结时间，具有较高的早期强度。
High-strength quick-setting cementing material as well as preparation method and application thereof
The invention provides a high-strength quick-setting cementing material as well as a preparation method and application thereof. The high-strength quick-setting cementing material comprises the following components in parts by weight: 30-75 parts of aluminate cement, 25-70 parts of high-calcium minerals and 0.02-0.5 part of a retarder, wherein the content of free calcium oxide in the high-calcium mineral is 2%-40%, the retarder is organic acid containing carboxylate radicals, and the weight ratio of the aluminate cement to the high-calcium mineral is preferably (0.5-2): 1. The preparation method comprises the following steps: mixing aluminate cement and high-calcium minerals to obtain a solid master batch; the solid master batch and water are mixed, the solid-to-liquid ratio of the solid master batch to the water is 0.15-0.6, and the mixture is evenly stirred to prepare the high-strength quick-setting type cementing material. By controlling the adding proportion of the high-calcium minerals, the aluminate cement and the retarder, the setting time of the cementing material is shortened, and the cementing material has high early strength.
本发明提供了一种高强速凝型胶凝材料及其制备方法和应用，高强速凝型胶凝材料包括以下重量份的组分：铝酸盐水泥30～75重量份，高钙矿物25～70重量份，缓凝剂0.02～0.5重量份；其中，高钙矿物中游离氧化钙的含量为2％～40％，缓凝剂为含有羧酸根的有机酸，所述铝酸盐水泥与所述高钙矿物的重量比优选为(0.5～2)：1。本发明的制备方法包括：将铝酸盐水泥、高钙矿物混合得到固体母料；将固体母料与水混合，固体母料与水的固液比为0.15～0.6，搅拌均匀制成高强速凝型胶凝材料。本发明通过控制高钙矿物、铝酸盐水泥与缓凝剂的添加比例，缩短了胶凝材料的凝结时间，具有较高的早期强度。
High-strength quick-setting cementing material as well as preparation method and application thereof
一种高强速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
| European Patent Office | 2022
| European Patent Office | 2020
Quick-hardening cementing material as well as preparation method and application thereof
| European Patent Office | 2021
| European Patent Office | 2023