矿物掺合料对水泥基自流平砂浆性能影响研究  

Effect of mineral admixture on performance of cementitious self-leveling mortar

作　　者：胡冉[1] 方从启[1] 孙红运 薛文涛[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《新型建筑材料》2016年第11期1-4,共4页New Building Materials

基　　金：国家自然科学基金项目(51178264);铁道部科技研究开发项目(J2001G003)

摘　　要：研究了不同掺量粉煤灰、矿渣、硅粉对水泥基自流平砂浆抗压强度、抗折强度和流动性的影响。结果表明:在砂浆中掺入粉煤灰时,砂浆流动性及强度随粉煤灰掺量的增加呈现先增大后减小的趋势;复掺时,等量矿渣和粉煤灰双掺及等量矿渣、粉煤灰和硅粉三掺砂浆的流动度提高最为显著,均达到350 mm,并且其抗压强度高于同龄期基准水泥及单掺粉煤灰10%的砂浆。Research on the self-leveling cement-based material compressive strength,flexural strength and fluidity of different amount of fly ash,slag and silica fume. Test results have shown that：single with fly ash,mortar fluidity and strength with an increase in the amount of fly ash added exhibits first increased then decreased. When mixed with different mineral admixtures,the same amount of slag and fly ash,and the same amount of slag,powder ash and silica fume ash applying mortar improve fluidity most significantly,both up to 350 mm. And its compressive strength is not only larger than that of standard cement of the same age,but also larger than that of mortar With only 10% fly ash.

关 键 词：自流平砂浆 矿物掺合料 流动度 抗压强度 抗折强度 

分 类 号：TU564.6[建筑科学—建筑技术科学]