The Effect of Silica Fume on Performance of High Alumina Castable

摘要：

　　High alumina castable was prepared using homogenized aggregate (Al2O3 70%), activated aluminium oxide micropowder and Elken silica fume (SiO2 95%) as raw materials with Secar71 cement as the binder.The effect of silica fume content (3wt%-l8wt%) on normal and fired performance of the high alumina castables was investigated according to YB/T 5201-1993 and GB/T 18301-2012 criterion.The results showed that apparent porosity of the castables decreased with addition of 9-12 wt% silica fume and the room temperature and sintered strength were improved, whereas deteriorated performance of the castables was observed with an adding amount exceeding 12 wt%.The best abrasion resistance was obtained with 6% silica fume.The castable displayed an optimum suitability for construction under room temperature with silica fume content of 6-12wt%.

关键词： homogenized castable silica fume abrasion resistance

作者: ZHENG Lijun ZHANG Guodong LUO Xudong WANG Chang FAN Yong

作者单位: School of High Temperature Materials and Magnesium Resource Engineering,University of Science and Te Beijing Tongda Refractory Technologies Co.,Ltd,Beijing 100085,China

会议类型: 国际会议

会议名称: 第七届国际耐火材料学术会议(ISR2016)

会议地点: 西安

会议语种:英文

页码: 1-3

在线出版日期: 2016-09-20（万方平台首次上网日期，不代表论文的发表时间）