摘要
研究了水泥净浆从小载荷直至破坏时的力电效应。研究表明 :水泥净浆在单向压应力作用下产生电流 ,电流强度随应力的增加而增加 ,电流强度与应力之间存在一一对应关系。载荷保持时 ,电流逐渐减小。随着水灰比的增加 ,敏感性也增加。力电机敏性随含水量的增加而增加 ,从而进一步验证了力电效应的机理。
Mechano electric effect of cement paste under low load to breakage was investigated in this paper. Electrical current was produced in cement paste under uniaxial compressive stress, which increased as the load increased. As the load kept stable, electrical current decreased gradually. And the sensitivity increased with the ratio of water/cement increasing. The fact that mechano electric effect was related to the content of water in specimens could be used to prove the mechanism of mechano electric effect. The study is important to develop the multifunctional concrete smart material.
出处
《武汉理工大学学报》
CAS
CSCD
2002年第8期35-37,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 4 2 )
