Studies of the Interfacial Properties of Fiber Reinforced Cement

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by S. P. Shah, Northwestern Univ, Evanston, United States,
Z. Li, Northwestern Univ, Evanston, United States,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract: The multiple fiber pull-out tests were conducted with steel wires and alkali resistant glass fiber strand in order to characterize the behavior of interface of fiber and cementitious matrix. Type I portland cement paste was used as a matrix. The specimens were tested with different curing regime. A simple method based on a recently developed fiber debonding and pull-out model was used to identify and evaluate the parameters at interface. The experimental data are presented on the parameter of shear stiffness of a fiber-matrix boundary layer, the shear bond strength, the frictional bond strength and the interfacial specific surface energy as a function of fiber embedded length.

Subject Headings: Fabrics | Pullout behavior | Shear strength | Cement | Bonding | Matrix (mathematics) | Parameters (statistics) | Boundary shear |

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