Effect of moisture on the thermal conductivity of a cementitious composite

被引：30
|
作者：
Mnahoncakova, E.
Jirickova, M.
Pavlik, Z.
Fiala, L.
Rovnanikova, P.
Bayer, P.
Cerny, R.
机构：
[1] Czech Tech Univ, Fac Civil Engn, Dept Mech, Prague 16629 6, Czech Republic
[2] Czech Tech Univ, Fac Civil Engn, Dept Phys, Prague 16629 6, Czech Republic
[3] Brno Univ Technol, Fac Civil Engn, Inst Chem, Brno 60200, Czech Republic
来源：
INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2006年 / 27卷 / 04期
关键词：
cementitious composites; homogenization; moisture content; thermal conductivity;
D O I：
10.1007/s10765-006-0073-y
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Measurements of the thermal conductivity of a cement-based composite material are performed as a function of moisture content from a dry state to a fully water-saturated state using an impulse technique. Then, the obtained data are analyzed using Brugemann and Wiener homogenization formulas. The validity of applied homogenization techniques is assessed comparing the measured and calculated results. On the basis of the experimental data and the homogenization analyses, the effects of total pore volume, pore distribution, and moisture content on the thermal conductivity are discussed.
引用
收藏
页码：1228 / 1240
页数：13
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