The effect of water saturation degree on the electrical properties of cement-based porous material
The effect of water saturation degree on the electrical properties of cement-based porous material
复制标题
含水饱和度对水泥基多孔材料电性能的影响
DOI：
10.1016/j.cemconcomp.2016.03.008
复制
发表时间：
2016-07-01
影响因子：
10.5
通讯作者：
Zeng, Qiang
中科院分区：
文献类型：
--
作者：
Li, Qinghua;Xu, Shilang;Zeng, Qiang
Electrical properties can be important indicators for durability of cement-based porous materials (CBPMs). This study seeks to deepen the understanding of the effect of water saturation degree on the electrical properties of CBPMs. Taking into account the joint conduction effects of the phases of pore solution and surface adsorption, and the determination by the quadratic deviation factor, we analyze the experimental data in the literature and evaluate the important parameters, i.e. the percolation threshold and Archie exponent. The contribution of the adsorbed phase to the total electrical properties is minor in high water saturation degree region, and then becomes heavily important as water content approaches the threshold. More thoughtful interpretation of the electrical properties of CBPMs should be conducted to correlate the threshold and exponent data to the micro- and pore structures and the transport properties. (C) 2016 Elsevier Ltd. All rights reserved.
