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A platform for research: civil engineering, architecture and urbanism
Coal gangue-based quick-hardening cementing material and preparation method thereof
The invention relates to a coal gangue-based quick-hardening cementing material and a preparation method thereof, the coal gangue-based quick-hardening cementing material contains tetracalcium sulphoaluminate, tricalcium silicate, dicalcium silicate and iron, part of SiO2 in coal gangue is calcined into tricalcium silicate, the coal gangue provides aluminum and siliceous, carbide slag provides calcium, gypsum, steel slag, fluorite, chromium slag and barite are added, and clinker is sintered at a low calcination temperature, and a certain amount of gypsum, limestone and volcanic ash are doped to prepare the quick-hardening cementing material. Part of SiO2 in the coal gangue is calcined into tricalcium silicate to enhance the early strength of the tricalcium silicate so that the material can be used for winter construction, emergency repair construction and the like; in the clinker calcination process, fluorite, chromium slag, barite and other mineralizers are added, and dicalcium silicate in steel slag has a nucleation effect so that the cementing material has a lower calcination temperature than traditional Portland cement, CO2 emission can be reduced, and environmental protection is facilitated.
一种煤矸石基快硬胶凝材料及其制备方法，其中含有硫铝酸四钙、硅酸三钙、硅酸二钙和铁，把煤矸石中的部分SiO2煅烧为硅酸三钙，以煤矸石提供铝质和硅质，电石渣提供钙质，加入石膏、钢渣以及萤石、铬渣、重晶石在较低的煅烧温度下烧制出熟料，再掺以一定量的石膏、石灰石和火山灰，制备出快硬性胶凝材料。本发明把煤矸石中的部分SiO2煅烧为硅酸三钙以增强其早期强度从而可用于冬季施工、抢险修复施工等，在熟料煅烧过程中加入了萤石、铬渣、重晶石等矿化剂以及钢渣中硅酸二钙的成核作用使的该胶凝材料较传统硅酸盐水泥有一个较低的煅烧温度，可减少CO2的排放，有利于环境的保护。
Coal gangue-based quick-hardening cementing material and preparation method thereof
The invention relates to a coal gangue-based quick-hardening cementing material and a preparation method thereof, the coal gangue-based quick-hardening cementing material contains tetracalcium sulphoaluminate, tricalcium silicate, dicalcium silicate and iron, part of SiO2 in coal gangue is calcined into tricalcium silicate, the coal gangue provides aluminum and siliceous, carbide slag provides calcium, gypsum, steel slag, fluorite, chromium slag and barite are added, and clinker is sintered at a low calcination temperature, and a certain amount of gypsum, limestone and volcanic ash are doped to prepare the quick-hardening cementing material. Part of SiO2 in the coal gangue is calcined into tricalcium silicate to enhance the early strength of the tricalcium silicate so that the material can be used for winter construction, emergency repair construction and the like; in the clinker calcination process, fluorite, chromium slag, barite and other mineralizers are added, and dicalcium silicate in steel slag has a nucleation effect so that the cementing material has a lower calcination temperature than traditional Portland cement, CO2 emission can be reduced, and environmental protection is facilitated.
一种煤矸石基快硬胶凝材料及其制备方法，其中含有硫铝酸四钙、硅酸三钙、硅酸二钙和铁，把煤矸石中的部分SiO2煅烧为硅酸三钙，以煤矸石提供铝质和硅质，电石渣提供钙质，加入石膏、钢渣以及萤石、铬渣、重晶石在较低的煅烧温度下烧制出熟料，再掺以一定量的石膏、石灰石和火山灰，制备出快硬性胶凝材料。本发明把煤矸石中的部分SiO2煅烧为硅酸三钙以增强其早期强度从而可用于冬季施工、抢险修复施工等，在熟料煅烧过程中加入了萤石、铬渣、重晶石等矿化剂以及钢渣中硅酸二钙的成核作用使的该胶凝材料较传统硅酸盐水泥有一个较低的煅烧温度，可减少CO2的排放，有利于环境的保护。
Coal gangue-based quick-hardening cementing material and preparation method thereof
一种煤矸石基快硬胶凝材料及其制备方法
YAN CHANGWANG (author) / SUN CUNYONG (author) / LIU SHUGUANG (author) / ZHANG JU (author)
2021-04-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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