ISSN 2319-5347, ISI Impact Factor: 0.763

VOLUME 03 NO. 04 OCTOBER 2014: 

Title:         Effect of Steel Fibers on Compressive and Tensile Strength of Concrete
Authors:    Waqas Arshad Tanoli, Amjad Naseer, Fazli Wahab
Abstract:   Concrete is currently one of the most widely used construction material. The reason for such wide useis because it is easily available, can effortlessly be molded into any shape, is cheap and has a high compressive strength. However, it is widely known to have a low tensile strength and does not perform well in aggressiven situations, an extremely objectionable quality in any construction material. To counter these shortcomings, concrete is ordinarily assorted with steel reinforcement. The tensile reinforcement compensates for the lack of tensile ability, increased brittleness and decreased strain capacity. Though the steel reinforcement helps the concrete to gain advantage, it still makes the construction cost quite high. With the advancement in nearly all the fields of science, it is the need of time to redefine concrete with such additional materials that will help to improve its properties, one such component is steel fiber. Much work is being carried out currently in this field and most of the codes have incorporated this material specifying the method of its use. In this research, steel binding wires were used as steel fibers which are locally available at very cheap cost. Steel fibers were added in different percentage i.e. 0.1 %, 0.5 % and 1 % along with control samples (0% Fibers). Concrete mix of 1:1.5:3 was used to accommodate for the high anchorage ability (absent in case when property enhancing material e.g. silica fume are not used).Compressive and Tensile strength calculation of all those samples and their comparison was the basic theme of the research. For this purpose cylinders and short beams were casted and checked under Universal Testing Machine for compressive and tensile strength. The research showed that there was slight increase in the compressive strength while increase in tensile strength was on higher side due to addition of steel fibers. Result data obtained had been analyzed and compared with the control sample. The important element in the testing procedure was that instead of using highly priced version of the steel fibers, ordinary binding wire cut into small pieces of size 2inch was used in the preparation of all specimens.

Keywords:   Steel Fibers, Concrete, Compressive Strength, Tensile Strength
Page no:      393-397

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