摘要
研究了掺加硅溶胶对石膏制品体积稳定性、强度、吸水率及软化系数的影响,对其微观结构采用扫描电镜和X射线衍射仪进行表征,并分析了硅溶胶对石膏的影响机理。结果表明,硅溶胶的掺加对石膏制品的强度有不利影响,但可大幅减小制品的吸水率,提高其耐水性能。综合考虑耐水性、体积稳定性和强度,确定硅溶胶最佳掺量在8%左右。
To improve the water resistance of gypsum products, different amounts of silica sol were added to the gypsum solutions, their macro performances were measured with volume stability, strengths and water absorption rate. The scanning electron microscope and X-ray diffractometer were used to analyze the influencing mechanism to the gypsum products. It is showed that adding silica sol in gypsum will increase the water resistance performance and reduce the water-absorbing rate of the gypsum products, although it will do harm to the dry strengths of gypsum products. Taking the water resistance, strength and volume stability into account, the best dosage of silica sol is 8%.
作者
赵红艳
刘开平
郁亚芸
李刚
马玉薇
Zhao Hongyan;Liu Kaiping;Yu Yayun;Li Gang;Ma YuweiI(College of Water Conservancy＆ Architectural Engineering,Shihezi University,Shihezi,Xinjiang,China;College of Materials Science and Engineering,Chang＇an University,Xi＇an,Shaanxi,China;Xi＇an automobile technology vocational college,Xi＇an,Shaanxi,China)
出处
《矿产综合利用》
CAS
北大核心
2018年第5期152-156,共5页
Multipurpose Utilization of Mineral Resources
基金
新疆兵团工业科技攻关项目(2014BA017)
中央高校基本科研业务费专项资金资助项目(310821171114)
关键词
建筑石膏
硅溶胶
耐水性能:强度
体积稳定性
Building gypsum
Silica sol
Water resistance
Strengths
Volume stability
