Effect of red mud on mechanical properties of loess –containing aluminosilicate based cementitious materials

摘要：

The effect of the thermal treated red mud on mechanical properties of loess –containing aluminosilicate based cementitious materials is investigated. And the characteristic of hydration production is tested using XRD, SEM and EDAX methods. The results show that the thermal treated red mud not only has excellent cementitious properties but also can improve the mechanical properties of loess –containing aluminosilicate based cementitious materials. Moreover when the content of red mud is 5％, the improved effect is optimal. On the one hand, the alkaline ingredients of red mud can promote abundant ettringites to produce at early ages. And the ettringites contribute to early strength of the cementitious material. On the other hand, the content of red mud is too high to improve the long-term strength.

关键词： Loess –containing aluminosilicate based cementitious material Red mud Mechanic property Hydration Ettringite

作者: Jianhua WAN Henghu SUN Yingying WANG Chao LI

作者单位: School of Resource and Safety Engineering, China University of Mining and Technology,Beijing , China School of Resource and Safety Engineering, China University of Mining and Technology,Beijing , China Department of Materials Science and Engineering, Tsinghua University, Beijing , China

会议类型: 国际会议

会议名称: 2008年中美材料国际研讨会

会议地点: 重庆

会议语种:英文

页码: 155-160

在线出版日期: 2008-06-09（万方平台首次上网日期，不代表论文的发表时间）