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水泥砂浆在载荷作用下的电学模型研究 被引量:2

An Electrical model of Cement Mortar During Loading
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摘要 水泥砂浆试块在载荷作用下会产生电信号 (电压或电流 ) ,推导了这种力电效应的电学模型。载荷作用下的水泥砂浆试块相当于一个电流源 ,电解质水溶液在孔隙中流动会遇到阻力形成内阻 ,电极和其中的水泥砂浆电介质构成电容。并分析了模型中每个元件的构成和大小 。 Electrical current or voltage is produced as the compressive stress is applied on cement mortar specimen. This phenomena is called as mechanoelectric effect. In this paper, the electrical model of this effect was investigated. In the model, cement mortar during loading is regarded as an electrical current source. The resistance is imposed on water when it flows through the porous matrix, and this is the origin of the internal electrical resistance. The capacitor is made up of electrodes and cement mortar. This model can explain experimental results on mechanoelectrical effect of cement mortar.
机构地区 武汉理工大学
出处 《武汉理工大学学报》 CAS CSCD 2002年第7期11-13,共3页 Journal of Wuhan University of Technology
基金 国家自然科学基金项目资助 (5 0 0 780 42 )
关键词 载荷作用 电学模型 水泥砂浆 力电效应 等效电路 cement mortar mechanoelectric effect electrical model
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参考文献6

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