钢渣复掺胶凝体系力学性能研究  

Study on the mechanical properties of mixed cementitious system of steel slag

作　　者：张忠哲[1] 何金春[1] 白建飞 张建 晋强[1] 刘慧[1] ZHANG Zhongzhe;HE Jinchun;BAI Jianfei;ZHANG Jian;JIN Qiang;LIU Hui(College of Civil and Hydraulic Engineering, Xinjiang Agricultural University, Urumqi 830052, China;Urumqi City Building Materials Science Research Institute, Urumqi 830000, China;Urumqi High - Speed Railway Hub Comprehensive Development ＆ Constructuction Investment Co. ,Itd, Urumqi 830015, China.)

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]乌鲁木齐市建筑建材科学研究院,新疆乌鲁木齐830000 [3]乌鲁木齐市高铁枢纽综合开发建设投资有限公司,新疆乌鲁木齐830015

出　　处：《水资源与水工程学报》2018年第2期178-185,共8页Journal of Water Resources and Water Engineering

基　　金：新疆维吾尔自治区自然科学基金项目(2015211A018)

摘　　要：为探究钢渣粉与矿物掺合料复掺组成胶凝体系的搭配比例。采用试饼法及雷氏夹法测试钢渣粉及复掺胶凝体系的体积安定性,通过力学性能表征选出适宜的钢渣研磨时间和钢渣粉复掺胶凝体系的搭配比例,并将复掺胶凝体系强度表征优选组与水泥颗粒粒度分布进行对比。试验结果表明:钢渣研磨时间宜采用30 min,钢渣粉与矿物掺合料复掺时,体积安定性均能满足规范要求。当钢渣粉和矿渣粉复掺比例为1∶1且占胶凝材料40%时、钢渣粉和粉煤灰的复掺比例为2∶1且占胶凝材料30%时、钢渣粉、粉煤灰和矿渣粉复掺比例为2∶1∶1且占胶凝材料40%时,以上3种复掺胶凝体系的力学性能和粒度分布均表现优异。In order to explore the proportion of the steel slag powder and mineral admixture complex com- position, in this experiment, the volume stability of the steel slag powder and the mixed cementitious sys- tem was tested by the test cake method and the Lei folder method. The suitable grinding time of steel slag and the proportion of steel slag powder were selected by mechanical property characterization, and the particle size distribution of cemented particles was compared with preferred group of strength characteriza- tion of mixed cementitious system. The results showed that the steel slag proper grinding time should be 30 min and the volume stability can meet specification requirements when the slag powder and mineral admixture are mixed. When steel slag powder and slag powder mix at the ratio of 1： 1, accounting for 40% of cementitious material,steel slag powder and fly ash mix at the ratio of 2：1 , accounting for 30% of the cementitious material and steel slag powder, steel slag powder, fly ash and slag powder mix at the ratio of 2：1 ： 1, accounting for 40% of cementitious material, the mechanical properties and particle size distribution of the above three kinds of mixed cementitious system are excellent.

关 键 词：钢渣 复掺胶凝体系 矿物掺合料 体积安定性 粒度分布 

分 类 号：TV41[水利工程—水工结构工程] TU528[建筑科学—建筑技术科学]