矿物掺合料细度对水泥胶砂力学性能的火山灰效应  

The Pozzolanic Effect of the Fineness of Mineral Admixture on the Cement Mortar's Mechanical Properties

作　　者：乔宏霞[1,2] 王永亮[2] 余红发[1] 何忠茂[3] 

机构地区：[1]中国科学院青海盐湖研究所,青海西宁810008 [2]兰州理工大学土木工程学院,甘肃兰州730050 [3]甘肃土木工程科学研究院,甘肃兰州730020

出　　处：《粉煤灰综合利用》2010年第2期14-16,19,共4页Fly Ash Comprehensive Utilization

基　　金：国家重点基础研究(973计划)课题(2009CB623200);中国科学院青海盐湖研究所博士后启动基金(0960021028)

摘　　要：通过分析单掺矿粉、单掺不同磨细程度的粉煤灰及复掺粉煤灰和矿粉的胶砂早期强度的变化规律,得出粉煤灰的磨细程度及粉煤灰与矿粉的复掺比例会影响胶砂的早期强度。粉煤灰越细,越有利于提高胶砂早期强度,复合掺合料之间各成分的最佳配合比可以充分发挥各自的活性,从而提高胶砂早期力学性能。Through analyzing the single-doped mineral admixture and mixing of different ground level of fly ash and mixing fly ash and mineral powder early strength of cement, we draw the fineness of fly ash and fly ash and mixing proportion of mine powder will affect the early strength of cement mortar. The higher fly ash fineness, the more helpful to improve the early strength of mortar. The best proportion compound admixtures ratio between components can give full play to their activity, thus improving early mechanical properties of cement mortar.

关 键 词：粉煤灰 细度 矿粉 活性 胶砂强度 

分 类 号：TU528.041[建筑科学—建筑技术科学]