湖南大学学报（自然科学版）2009，Vol.36Issue(11)：16-20,5.
拜耳法赤泥作为砂浆矿物增稠材料初步研究
Preliminary Study of Bayer Red-mud as the Mineral Thickening Material for Mortar
摘要
Abstract
This study focuses on the Bayer red-mud as the mineral thickening material used to compound mortar. The activity of the Bayer red-mud was tested, and the influence of its content on the basic performance and the strength of mortar was analyzed. The results showed that the main factor affecting the activity of Bayer red-mud was fineness index when the fineness (80 μm sieve residue) was above 2%. With the increase of the content of red-mud, the workability of mortar mixture was improved. When the content up to 50%, compared with cement mortar with similar consistency, its segregation degree and bleeding rate were down to 23 mm and 1% from 29 mm and 13% respectively, and the setting time was prolonged by about 1 hour, but the requirements on the basic performance and the strength were still satisfied for M7. 5 masonry mortar. And with the excess coefficient of 1. 2, the workability and mechanical properties of mortar were significantly improved.关键词
性能/拜耳法赤泥/矿物摻合料/活性Key words
performances/Bayer red-mud/mineral admixtures/activity分类
建筑与水利引用本文复制引用
彭小芹,许国伟,林力勋,钟安鑫..拜耳法赤泥作为砂浆矿物增稠材料初步研究[J].湖南大学学报（自然科学版）,2009,36(11):16-20,5.基金项目
中国建筑工程总公司基金资助项目(CSCEC-2008-Z-14) （CSCEC-2008-Z-14）
贵州省科技厅基金资助项目(黔科合肥Z字[2009]2) （黔科合肥Z字[2009]2）
