A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a low-negative-temperature cement-based rapid repair material. The material comprises the following components in parts by weight: 80 to 160 parts of ordinary Portland cement, 310 to 420 parts of sulphoaluminate cement, 320 to 410 parts of aluminate cement, 736 to 734 parts of fine aggregate, 989 to 1011 parts of coarse aggregate, 1.8 to 2.1 parts of a water reducing agent,7 to 11 parts of an anti-freezing agent, 0.2 to 0.4 part of a retarder and 0.3 to 0.7 part of a coagulation accelerator. Compared with an ordinary Portland cement system, the repair material providedby the invention has the effects of accelerating setting and hardening, shortening the demolding time, improving the early strength and increasing the later strength, and alleviating the problems of slow hydration and low strength in a low-temperature environment.
本发明提供了一种低负温水泥基快速修复材料，包括按以下重量份数计的以下组分：普通硅酸盐水泥80～160份、硫铝酸盐水泥310～420份、铝酸盐水泥320～410份、细骨料736～734份、粗骨料989～1011份、减水剂1.8～2.1份、防冻剂7～11份、缓凝剂0.2～0.4份以及促凝剂0.3～0.7份。本发明提供的修复材料相比于普通硅酸盐水泥体系，起到了加快凝结硬化、缩短脱模时间、提高早期强度、增加后期强度的作用，改善了低温环境下水化慢、强度低的问题。
The invention provides a low-negative-temperature cement-based rapid repair material. The material comprises the following components in parts by weight: 80 to 160 parts of ordinary Portland cement, 310 to 420 parts of sulphoaluminate cement, 320 to 410 parts of aluminate cement, 736 to 734 parts of fine aggregate, 989 to 1011 parts of coarse aggregate, 1.8 to 2.1 parts of a water reducing agent,7 to 11 parts of an anti-freezing agent, 0.2 to 0.4 part of a retarder and 0.3 to 0.7 part of a coagulation accelerator. Compared with an ordinary Portland cement system, the repair material providedby the invention has the effects of accelerating setting and hardening, shortening the demolding time, improving the early strength and increasing the later strength, and alleviating the problems of slow hydration and low strength in a low-temperature environment.
本发明提供了一种低负温水泥基快速修复材料，包括按以下重量份数计的以下组分：普通硅酸盐水泥80～160份、硫铝酸盐水泥310～420份、铝酸盐水泥320～410份、细骨料736～734份、粗骨料989～1011份、减水剂1.8～2.1份、防冻剂7～11份、缓凝剂0.2～0.4份以及促凝剂0.3～0.7份。本发明提供的修复材料相比于普通硅酸盐水泥体系，起到了加快凝结硬化、缩短脱模时间、提高早期强度、增加后期强度的作用，改善了低温环境下水化慢、强度低的问题。
| European Patent Office | 2024
Cement-based rapid repair material and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2023
Composite repair material suitable for rapid pavement repairing at negative temperature
| European Patent Office | 2022