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A platform for research: civil engineering, architecture and urbanism
Alkali-activator-free high-strength solid waste-based cement and preparation method thereof
The invention provides alkali-activator-free high-strength solid waste-based cement and a preparation method thereof. The alkali-activator-free high-strength solid waste-based cement is prepared from the following raw materials: 18-24 parts of Portland cement clinker, 75-80 parts of wide-distribution superfine mineral powder and 1-1.5 parts of gypsum. The characteristic particle size De value of the wide-distribution superfine mineral powder is less than 7.5 microns, and the uniformity coefficient n value is less than 0.9. According to the method, the wide-distribution superfine mineral powder is used, and the doping amount of the mineral powder is greater than or equal to 75% in an air inflation pressurization sample mixing mode under the condition that an alkali activator is not additionally used, so that the addition amount of the mineral powder is remarkably increased, and various properties meet the requirements of ordinary Portland cement. The problems that common solid waste-based cement depends on a chemical exciting agent to improve the strength, the mineral powder doping amount is low, and the setting time and strength do not adapt to the construction environment are solved. According to the invention, the utilization efficiency of the mineral powder is effectively improved, and various properties of the alkali-activator-free high-strength solid waste-based cement can meet the current ordinary Portland cement standards.
本发明提供了一种无碱激发剂高强固废基水泥及其制备方法，原料为硅酸盐水泥熟料18‑24份，宽分布超细矿粉75‑80份，石膏1‑1.5份；宽分布超细矿粉的特征粒径值De值小于7.5μm，均匀性系数n值小于0.9。本发明使用宽分布超细矿粉，利用充气加压混样方式，在不额外使用碱激发剂的条件下，使矿粉掺入量≥75％，显著提高矿粉加入量，且各项性能满足普通硅酸盐水泥要求。本发明解决普通固废基水泥依赖化学激发剂提升强度、矿粉掺入量低，凝结时间和强度不适应施工环境等问题。本发明在有效提升矿粉利用效率的同时，可保证无碱激发剂高强固废基水泥各项性能能满足现行普通硅酸盐水泥规范。
Alkali-activator-free high-strength solid waste-based cement and preparation method thereof
The invention provides alkali-activator-free high-strength solid waste-based cement and a preparation method thereof. The alkali-activator-free high-strength solid waste-based cement is prepared from the following raw materials: 18-24 parts of Portland cement clinker, 75-80 parts of wide-distribution superfine mineral powder and 1-1.5 parts of gypsum. The characteristic particle size De value of the wide-distribution superfine mineral powder is less than 7.5 microns, and the uniformity coefficient n value is less than 0.9. According to the method, the wide-distribution superfine mineral powder is used, and the doping amount of the mineral powder is greater than or equal to 75% in an air inflation pressurization sample mixing mode under the condition that an alkali activator is not additionally used, so that the addition amount of the mineral powder is remarkably increased, and various properties meet the requirements of ordinary Portland cement. The problems that common solid waste-based cement depends on a chemical exciting agent to improve the strength, the mineral powder doping amount is low, and the setting time and strength do not adapt to the construction environment are solved. According to the invention, the utilization efficiency of the mineral powder is effectively improved, and various properties of the alkali-activator-free high-strength solid waste-based cement can meet the current ordinary Portland cement standards.
本发明提供了一种无碱激发剂高强固废基水泥及其制备方法，原料为硅酸盐水泥熟料18‑24份，宽分布超细矿粉75‑80份，石膏1‑1.5份；宽分布超细矿粉的特征粒径值De值小于7.5μm，均匀性系数n值小于0.9。本发明使用宽分布超细矿粉，利用充气加压混样方式，在不额外使用碱激发剂的条件下，使矿粉掺入量≥75％，显著提高矿粉加入量，且各项性能满足普通硅酸盐水泥要求。本发明解决普通固废基水泥依赖化学激发剂提升强度、矿粉掺入量低，凝结时间和强度不适应施工环境等问题。本发明在有效提升矿粉利用效率的同时，可保证无碱激发剂高强固废基水泥各项性能能满足现行普通硅酸盐水泥规范。
Alkali-activator-free high-strength solid waste-based cement and preparation method thereof
一种无碱激发剂高强固废基水泥及其制备方法
WU TIEJUN (author) / CHEN QINSONG (author) / XIE FAQUAN (author) / ZHUANG YUNFANG (author) / KANG MING (author) / LU HAIJUN (author) / YE SHUFENG (author) / ZHANG YA'NAN (author) / WANG PING (author)
2024-10-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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