The contact electrical resistivity of the fiber-matrix interface was found to correlate strongly with the shear debonding strength. In the case of the interface between stainless steel fiber and cement paste, the contact resistivity increased linearly with increasing debonding strength and interfacial phase(s) of volume resistivity higher than that of cement paste enhanced the bonding.
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Parviz Soroushian, Fadhel Aouadi and Mohamad Nagi, ACI Materials J. 88(1), 11 (1991).
Xuli Fu and D.D.L. Chung, to be published.
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Fu, X., Chung, D.D.L. The Fiber-Matrix Interface in Fiber Reinforced Concrete Studied by Contact Electrical Resistivity Measurement. MRS Online Proceedings Library 370, 559–563 (1994). https://doi.org/10.1557/PROC-370-559