硅酸盐通报2024，Vol.43Issue(5)：1822-1831,10.
两类三元胶凝体系的构建及配比优化
Construction and Mix Ratio Optimization of Two Kinds of Ternary Gelling Systems
摘要
Abstract
In order to ensure the performance of concrete materials and achieve low-carbon and green development,two kinds of ternary cementitious systems were prepared by replacing 55％(mass fraction)cement(C)with auxiliary cementitious materials(SCMs)such as slag powder(GS),fly ash(FA)and limestone powder(LS),namely fly ash-slag powder-cement system(FGC)and limestone powder-slag powder-cement system(LGC).The influence of the proportion changes of FA-GS and LS-GS in system on compactness,workability,and strength of ternary cementitious material powder was studied,and the optimum mix ratio of ternary cementitious system was determined by microstructure analysis.The results show that as the proportion of GS in the two ternary cementitious systems increases,the compactness and flowability of sample slightly decrease,while the compressive strength,flexural strength,and environmental benefits of sample gradually increase.When the mass ratio of FA-GS and LS-GS is both 3∶8,the middle and late strength of mortar samples prepared by the two cementitious systems can be close to or even higher than that of pure cement samples.关键词
粉煤灰/矿粉/石灰石粉/抗压强度/抗折强度/微观结构/配比优化Key words
fly ash/mineral powder/limestone powder/compressive strength/flexural strength/microstructure/mix ratio optimization分类
建筑与水利引用本文复制引用
荆彪,张凯峰,桑国臣,童小根,朱王科..两类三元胶凝体系的构建及配比优化[J].硅酸盐通报,2024,43(5):1822-1831,10.基金项目
中建西部建设北方有限公司科技研发项目(BF202216) （BF202216）
陕西省科协企业创新争先青年人才托举计划(20230434) （20230434）
