Influence of the Surface Treatment of Hardened Cement Mortar with Colloidal Nano-Silica and TEOS

摘要：

　　Two types of silicate material, tetraethoxysilane (TEOS) and colloidal nanoSiO2 (CNS), were applied for surface treatment of hardened cement mortar by exploring their filling and pozzolanic reactivity to make the surface compacter. Results showed that the water adsorption coefficient, the water vapor transmission rate, and the water penetration depth were reduced when CNS and TEOS were applied onto the surface of hardened cement mortar, and TEOS exhibits a superior effect on surface treatment, making the mass-transport rate and extent smaller than CNS does.

作者: Pengkun Hou Xin Cheng Zonghui Zhou

作者单位: School of Materials Science and Engineering, University of Jinan, Shandong, 250022, China Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, Jinan, Shandong 250022, China

会议类型: 国际会议

会议名称: The 5th International Conference on the Durability of Concrete Structures(第五届混凝土结构耐久性国际学术会议)

会议地点: 深圳

会议语种:英文

页码: 73-76

在线出版日期: 2016-07-01（万方平台首次上网日期，不代表论文的发表时间）