Effects of high temperature on the microstructure of cement mortar

被引：3
|
作者：
Pham, Son Tung [1 ]
Prince, William [1 ]
机构：
[1] Inst Natl Sci Appl, Lab Civil Engn & Mech Engn, F-35000 Rennes, France
来源：
MECHATRONICS ENGINEERING, COMPUTING AND INFORMATION TECHNOLOGY | 2014年 / 556-562卷
关键词：
High temperature; Portland mortar; Nitrogen adsorption; Specific surface; Pore size distribution; Calcium silicate hydrate; C-S-H; PASTE; SI-29;
D O I：
10.4028/www.scientific.net/AMM.556-562.969
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The objective of this study was to examine microstructural changes of cement mortar due to elevated temperature from 105 to 500 degrees C. Changes at the meso and microscopic levels were followed by nitrogen adsorption desorption isotherms, from which the pores size distributions and specific surface areas were determined. The results show a decrease in volume of micropores and an increase in volume of mesopores which reflect clearly the shrinkage and structural transformation of the calcium silicate hydrate due to high temperature.
引用
收藏
页码：969 / 972
页数：4
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