Electrical resistance change in compact tension specimens of carbon fiber cement composites
作者： Farhad Reza , Jerry A Yamamuro , Gordon B Batson
DOI: 10.1016/J.CEMCONCOMP.2003.06.002
关键词:
摘要: The incorporation of a small volume carbon fibers into cement matrix can lead to multiple benefits including improvements in durability and tensile strength. In this paper, the smart material property composite which is its ability respond electrical stimuli was exploited. It found that resistance techniques had previously been only applicable as investigative tools fracture mechanics studies metals could now be extended field fiber-reinforced concrete mechanics. Compact-tension specimens mortar with percentages between 0% 0.6% were tested. Fixed frequency measurements 20 Hz, 100 10 kHz 1 MHz taken during tests. Good correlations behavior mechanical observed. particular, may used provide some insight on development mechanisms process zone, an estimate length propagating crack. addition, strength by increased approximately three times over unreinforced matrix.
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