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Performance Of Concrete With Adding Of Steel Fibers

Authors: Vakacharla Veera Mnikanta Srikar*1 & G.Kalyan2;

Performance Of Concrete With Adding Of Steel Fibers

Abstract

ABSTRACT Concrete made with Portland cement has certain characteristics: it is relatively strong in compression but weak in tension and tends to be brittle. These two weaknesses have limited its use. Another fundamental weakness of concrete is that cracks start to form as soon as concrete is placed and before it has properly hardened. These cracks are major cause of weakness in concrete particularly in large on site applications leading to subsequent fracture and failure and general lack of durability. Fiber reinforced concrete (FRC) may be defined as a composite materials made with Portland cement, aggregate, and incorporating discrete discontinuous fibers. Fiber- reinforced concrete (FRC) is concrete containing fibrous material which increases its structural integrity. It contains short discrete fibres that are uniformly distributed and randomly oriented – each of which lend varying properties to the concrete. In addition, the character of fibre-reinforced concrete changes with varying concretes, fibre materials, geometries, distribution, orientation, and densities. In this experimental investigation, an attempt has made to find out strength related tests like Compressive Strength, Split Tensile Strength, Flexural Strength using hooked end Steel Fibers with to volume fraction of 0.5% and 1% and for aspect ratio and considered for M40 Grade of concrete. Number of specimens were casted, cured and tested. The real contribution of the fibers is to increase the toughness of the concrete, under any type of loading and permit the fiber reinforced concrete to carry significant stress over a relatively large strain capacity in the post cracking stage. The results of the tests showed that the strength properties are enhanced due to addition of fibers.

Keywords

Concrete, Coarse Aggregate, Fine Aggregates, Fibers, Fiber Reinforced Concrete, Hooked End Steel Fibers, Aspect Ratio, Mechanical Properties.

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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