A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Special cement for rail transit and production process thereof
The invention discloses special cement for rail transit and a production process thereof. The cement special for rail transit comprises a primary ingredient, a secondary ingredient, superfine slag powder and a grinding aid, the primary ingredient comprises limestone, bauxite, converter slag, silica and citric acid slag, and the secondary ingredient comprises cement clinker obtained by processing the primary ingredient, desulfurized gypsum and a mixed material. According to a traditional method, various chemical agents are added, the chloride ion penetration resistance, the sulfate crystallization damage resistance, the frost resistance, the wear resistance, the crack resistance and the like of cement are improved, and the cost is high. Aiming at the environment and requirements of rail transit construction, the performance of the cement is improved in a targeted manner, the characteristics of industrial wastes are fully utilized, the pollution of the wastes to the environment is reduced, the addition of the chemical agents is reduced, the cost is reduced, and the comprehensive utilization of resources is realized.
本发明公开了一种轨道交通专用水泥及其生产工艺，所述轨道交通专用水泥包括初级配料、次级配料、矿渣微粉和助磨剂，所述初级配料包括石灰石、铝矾土、转炉渣、硅石和柠檬酸渣，次级配料包括由初级配料加工得到的水泥熟料、脱硫石膏和混合材。传统方法是通过添加各种化学制剂，对水泥的抗氯离子渗透性能、抗硫酸盐结晶破坏性能、抗冻性能、耐磨性能、抗裂性能等进行改良，成本较高。本专利针对轨道交通施工的环境和要求对水泥的性能有针对性的改良，充分利用工业废弃物的特性，减少了废弃物对环境的污染，减少了化学制剂的添加，降低了成本，实现了资源的综合利用。
Special cement for rail transit and production process thereof
The invention discloses special cement for rail transit and a production process thereof. The cement special for rail transit comprises a primary ingredient, a secondary ingredient, superfine slag powder and a grinding aid, the primary ingredient comprises limestone, bauxite, converter slag, silica and citric acid slag, and the secondary ingredient comprises cement clinker obtained by processing the primary ingredient, desulfurized gypsum and a mixed material. According to a traditional method, various chemical agents are added, the chloride ion penetration resistance, the sulfate crystallization damage resistance, the frost resistance, the wear resistance, the crack resistance and the like of cement are improved, and the cost is high. Aiming at the environment and requirements of rail transit construction, the performance of the cement is improved in a targeted manner, the characteristics of industrial wastes are fully utilized, the pollution of the wastes to the environment is reduced, the addition of the chemical agents is reduced, the cost is reduced, and the comprehensive utilization of resources is realized.
本发明公开了一种轨道交通专用水泥及其生产工艺，所述轨道交通专用水泥包括初级配料、次级配料、矿渣微粉和助磨剂，所述初级配料包括石灰石、铝矾土、转炉渣、硅石和柠檬酸渣，次级配料包括由初级配料加工得到的水泥熟料、脱硫石膏和混合材。传统方法是通过添加各种化学制剂，对水泥的抗氯离子渗透性能、抗硫酸盐结晶破坏性能、抗冻性能、耐磨性能、抗裂性能等进行改良，成本较高。本专利针对轨道交通施工的环境和要求对水泥的性能有针对性的改良，充分利用工业废弃物的特性，减少了废弃物对环境的污染，减少了化学制剂的添加，降低了成本，实现了资源的综合利用。
Special cement for rail transit and production process thereof
一种轨道交通专用水泥及其生产工艺
GU WANYI (author) / LI GUOLIANG (author) / WANG ZHONGGE (author) / XU HONGBIN (author) / ZHAO JUN (author) / REN WANJI (author) / ZHANG JUNLU (author) / LIU HONGZHI (author)
2020-07-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Special cement for commercial concrete and production process thereof
| European Patent Office | 2021