Pore Structure of Hardened Cement Paste Modified with Hydrozyethyl Methyl Cellulose

摘要：

The effects of hydroxyethyl methyl cellulose (HEMC) on the pore structure of cement paste were studied through using mercury intrusion porosimeter (MIP) and environmental scanning electron microscopy (ESEM) techniques. The results show that HEMC remarkably affects the pore structure of cement paste. HEMC definitely increases the total pore volume, porosity and the average pore radius, but decreases the total pore area. HEMC obviously increases the content of large capillary pores of cement paste, and pores entrained by HEMC are mainly close pores. With the increase of its addition, the effect of HEMC on the pore structure of cement paste enhances. HEMC also makes many calcium hydroxide crystals formed in the pores of cement paste.

关键词： cement paste hydrozyethyl methyl cellulose pore structure

作者: Guofang Zhang Peiming Wang

作者单位: Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 200092, China

会议类型: 国际会议

会议名称: 6th Asian Symposium on Polymers in Concrete(第六届亚洲聚合物混凝土国际会议)

会议地点: 上海

会议语种:英文

页码: 281-288

在线出版日期: 2009-10-29（万方平台首次上网日期，不代表论文的发表时间）