摘要
以Andreason颗粒紧密堆积方程为理论指导,研究了胶凝材料颗粒级配对水泥基凝胶体系性能的影响。通过调整水泥熟料、矿物掺合料混合材间的混合比例,筛选出最佳颗粒级配分布方案。结果表明:当m(矿粉+粉煤灰)∶m(水泥熟料)=14∶81或16∶79时,成型胶砂的力学性能最优;基体孔隙率明显降低,且优于纯水泥基准组,证明了优化矿物掺合料颗粒级配的可行性。
The influence of particle size of cementitious material on the properties of cement gel system was discussed based on the theory of Andreason particle packing equation.By adjusting the mixing proportion of cement clinker,mineral powder and admixture,the best particle size distribution scheme is selected.The results show that when the ratio of mineral powder and fly ash to cement clinker is 14∶81 or 16∶79,the mechanical properties of cement clinker are the best.The porosity decreases obviously,which is better than that of pure cement reference group,which proves the feasibility of optimizing the particle size distribution of mineral admixtures.
作者
艾洪祥
刘洋
李绍纯
腊润涛
郑海康
陈旭
韩世界
AI Hongxiang;LIU Yang;LI Shaochun;LA Runtao;ZHENG Haikang;CHEN Xu;HAN Shijie(China West Construction XinJiang Co.Ltd.,Urumqi 830000,China;School of Civil Engineering,Qingdao Technological of University,Tsingdao 266033,China;Xinjiang Production and Construction Corps Survey,Planning,Design and Research Institute,Urumqi 830000,China)
出处
《新型建筑材料》
2021年第10期16-19,23,共5页
New Building Materials
基金
国家自然科学基金重点国际合作项目(51420105015)
中建西部建设股份有限公司项目(ZJXJ-2019-04)。
关键词
胶凝材料
水泥熟料
混合材
颗粒级配
强度
cementitious materials
cement clinker
admixtures
particle size distribution
strength
