ISSN 2319-5347, ISI Impact Factor: 0.763

VOLUME 04 NO. 02 APRIL 2015:

Title:        Experimental Study of Behavior of Fiber Reinforced Concrete Beams
Authors:  Haider Ali, Amjad Naseer, Sajjad Wali Khan, Fazli Wahab, Waqas Arshad Tanoli
Abstract: Concrete is currently essentially the most traditionally used construction material. The actual reason of its wide use is because it is easily available, may simply be molded into any appearance, can be inexpensive and possesses a high compressive strength. However it has a little tensile strain capacity which exhibit poor performance in tension and hence it performs in brittle fashion. To overcome these shortcomings, the concrete is reinforced with steel reinforcements. This study has been carried out to generate an experimental data using the mild steel fibers in plain concrete beams and cylinders as well as in conventional reinforced concrete beams.For the purpose mentioned, a total of twenty cylinders and small beams were prepared. Steel fibers were added in different percentage i.e. 0.1 %, 0.5 % and 1 % along with control samples (0% Fibers) were casted. Concrete mix of 1:1.5:3 was used. The compressive and tensile strength was calculated for all these samples while testing them under the Universal Testing Machine. The results yielded an optimum fiber content of 1% by volume. Similarly, a total of six full scale beams were prepared. These beams were reinforced with conventional reinforcing mild steel bars. Out of these six beams, in four samples the fibers were mixed as secondary reinforcements and in two of fiber reinforced concrete beams silica fume was added as partial replacement of binding materials. The specimens were tested for third point loading, the results were obtained and the final conclusions are drawn.

Keywords: Steel fibers, Concrete, Beams, Compressive strength, Tensile strength
Pages:        80-85

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