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Fracture behavior of concrete reinforced with basalt fibers
Mohammed Ishtiyaque#1, M.G. Shaikh *2

Published in: Journal for Advance Research in Applied Sciences
Volume- 4, Issue-7, pp.79-84, Dec 2017
DPI :-> 16.10089.JARAS.2017.V4I7.7984.2223



Abstract
In present study an attempt is made to study the effect of addition of basalt fibers on various fracture properties of concrete. Normal strength concrete was cast by using water to cement ratio as 0.38 and a total of five mixtures were prepared by using basalt fibers (0.25, 0.5, 0.75 &1% by volume of concrete) into those concretes. Three point bending test were conducted on notched beams to study fracture properties such as fracture energy, fracture toughness (KIC) and critical tip opening displacements (CTODC) of different concrete mixes. Test results showed an improvement in tensile strength and fracture properties of basalt fiber reinforced concrete mixes when compared with control mix. Tensile strength was enhanced by 11 % with addition of 0.25% basalt fibers. Fracture toughness was also enhanced by 402% & 269 % with addition of 0.25% and 0.75% basalt fibers. However inclusion of basalt fibers resulted in reduction in the workability and compressive strength of concrete mixture with increasing fiber contents. 25 % decrease in compressive strength was observed with addition of 1% BF when comp

Key-Words / Index Term
Basalt fibers, Fracture energy, Fracture toughness, Critical tip opening displacement

How to cite this article
Mohammed Ishtiyaque#1, M.G. Shaikh *2 , “Fracture behavior of concrete reinforced with basalt fibers”, Journal for Advance Research in Applied Sciences, 4, Issue-7, pp.79-84, Dec 2017. DPI:16.10089.JARAS.V4.I7.2223