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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 108
PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping
Paper 13
An Experimental Investigation of the Impact of Fiber Material on Fracture Energy of Fibre Reinforced Concrete A. Podstawka, J. Fladr and M. Foglar
Faculty of Civil Engineering, Czech Technical University in Prague, Czech Republic A. Podstawka, J. Fladr, M. Foglar, "An Experimental Investigation of the Impact of Fiber Material on Fracture Energy of Fibre Reinforced Concrete", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 13, 2015. doi:10.4203/ccp.108.13
Keywords: fiber reinforced concrete, fibers, testing of materials properties, force-extension diagram, force-deflection diagram, work of material, fracture energy.
Summary
The paper quantifies the influence of mechanical properties of fibers to the structural behavior of the fiber reinforced concrete. The effect of material characteristics and force-extension diagram of the added fibers on the force-deflection diagram of fiber reinforced concrete is studied. The investigation is based on the results of an experimental program focused on the force-deflection diagrams of fiber reinforced concrete and fibers. No direct correlation was found between the increment of the area under the force-deflection diagram of fiber reinforced concrete and force-extension diagram of these fibers. Nevertheless, it was proven that the tensile strength of added fibers is the decisive property influencing the post-peak behavior of fiber-reinforced concrete.
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