Fractal characterization of pore system evolution in cementitious materials

被引：30
|
作者：
Chen, Xudong [1 ]
Zhou, Jikai [1 ]
Ding, Ning [1 ]
机构：
[1] Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210098, Peoples R China
来源：
KSCE JOURNAL OF CIVIL ENGINEERING | 2015年 / 19卷 / 03期
基金：
中国国家自然科学基金;
关键词：
pore structure; cementitious materials; fractal dimension; models; DIMENSIONS; POROSIMETRY; CONCRETE; STRENGTH; POROSITY;
D O I：
10.1007/s12205-013-0320-2
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The porous microstructure of cementitious materials can be examined using the fractal approach. The aim of our study is to make an evaluation of the fractal characteristics of pore size distributions of cementitious materials measured by the mercury intrusion porosimetry technique. The cement paste, mortar, and concrete specimens were mixed with various water-cement ratios and curing ages. The fractal characteristics of these materials were examined through fractal models for the pore size distribution, and were represented by only one physical parameter, namely-the fractal dimension. The results illustrate that cementitious materials are porous fractal structure. Five different calculation models of the fractal dimensions were developed. Overall, the modeled fractal dimension values were consistent. A final discussion on the relationship between the modeled values and the evolution of the pore structure was presented.
引用
收藏
页码：719 / 724
页数：6
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