自密实轻骨料混凝土的配合比设计研究  

The study on concrete mix design of self-compacting lightweight aggregate concrete

作　　者：董健苗[1] 燕元晶 聂浩[1] 农辉辉 李小武[1] 

机构地区：[1]广西科技大学,广西柳州545006

出　　处：《新型建筑材料》2016年第4期59-61,68,共4页New Building Materials

基　　金：广西教育厅科学基金项目(YB2014199);广西高校中青年骨干教师培养计划项目(2014年);柳州市科学研究与技术开发计划项目(2013B030402)

摘　　要：选用普通硅酸盐水泥、陶粒、河砂、粉煤灰、硅灰等原材料,采用绝对体积法,研究了水胶比、轻骨料体积掺量、矿物掺合料用量对自密实轻骨料混凝土性能的影响,确定了SCLC40、SCLC50强度等级的自密实轻骨料混凝土配合比。结果表明:当轻骨料体积掺量为42%、Ⅰ级粉煤灰掺量为20%、硅灰掺量为10%(SCLC50)时,SCLC的自密实性能和表观密度最佳。This paper selected Portland cement,ceramsite,river sand,fly ash, silica fume etc,studied the influences of some farctors which include water-binder ratio,volume quantities of lightweight aggregate,dosage of mineral admixtures on the properties of self--compacting lightweight aggregate concrete by absolute volume method,and determined the mix ratio of soft-compacting lightweight aggresate concrete of SCLC40 and SCLC50 strength grade. The result indicated that SCLC could have the best perfor- rnanee of serf compactness and apparent density when mixed＂ 42% volume quantifies of lightweight aggregate,20% first-grade fly ash, and 10% silica fume （SCLC50）.

关 键 词：自密实轻骨料混凝土 配合比 坍落扩展度 表观密度 抗压强度 

分 类 号：TU528.01[建筑科学—建筑技术科学]