Synthesis of Calcium Silicate Hydrate based on Steel Slag with Various Alkalinities
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第4期
论文作者：王淑萍 彭小芹 GENG Jianqiang LI Bin WANG Kaiyu
文章页码：789 - 794
摘 要：This study aimed to improve the hydraulic potential properties of the slag. Therefore, a method of dynamic hydrothermal synthesis was applied to synthesize calcium silicate hydrate. The phases and nanostructures were characterized by XRD, FTIR, TEM, and BET nitrogen adsorption. The infl uence of alkalinity of steel slag on its structures and properties was discussed. The experimental results show that, the main product is amorphous calcium silicate hydrate gel with fl occulent or fi brous pattern with a BET specifi c surface area up to 77 m2/g and pore volume of 0.34 mL/g. Compared with low alkalinity steel slag, calcium silicate hydrate synthesized from higher alkalinity steel slag is prone to transform to tobermorite structure.
王淑萍1,2，彭小芹1,2，GENG Jianqiang1,2，LI Bin1,2，WANG Kaiyu3
1. College of Material Science and Engineering, Chongqing University3. Shandong Provincial Academy of Building Research
摘 要：This study aimed to improve the hydraulic potential properties of the slag. Therefore, a method of dynamic hydrothermal synthesis was applied to synthesize calcium silicate hydrate. The phases and nanostructures were characterized by XRD, FTIR, TEM, and BET nitrogen adsorption. The infl uence of alkalinity of steel slag on its structures and properties was discussed. The experimental results show that, the main product is amorphous calcium silicate hydrate gel with fl occulent or fi brous pattern with a BET specifi c surface area up to 77 m2/g and pore volume of 0.34 mL/g. Compared with low alkalinity steel slag, calcium silicate hydrate synthesized from higher alkalinity steel slag is prone to transform to tobermorite structure.
关键词：
