Preparation of bittern-resisting cement used by fly ash
Based on compound cementitious system of clinker containing C4A3 phase, ground fly ash, and granulated blast-furnace slag, a new kind of cement, the Bittern-resisting Cement, is studied for high-bittern environment in the northwest of China. This new material uses class III fly ash as raw material to produce BRC clinker containing C3S and C4A3 phase, and class II fly ash as high-activity cement admixture. Experiments show that the setting time of BRC is relatively shorter but the later strength is higher, and the resistance to chemical attack of brines is more excellent than ordinary Portland cement, which is more suitable for engineering construction in saline lakes. By means of XRD, TG-DTA and SEM, the clinker phases and the hydrated products of BRC are studied and the mechanism of corrosion resistance to chemical attack in brines also is examined.
fly ash compound cementitious system bittern-resisting cement chemical attack
Wang Bing-wen Hou Yun-bing Zhang Fan Yu Lei Zhou Jie
College of Resource and Safety Engineering, China University of Mining & Technology (Beijing), Beijing 10083, China
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-6
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）