Steel Fiber Reinforced Concrete

Fiber reinforced concrete is a composite material comprised of Portland cement, aggregate, and fibers. Normal unreinforced concrete is brittle with a low tensile strength and strain capacity. Fibres varies between 0.25 mm and 1.00 mm in diameter and from 12 mm to 60mm in length, and the fibre content ranged from 0.3 to 2.5 percent by volume. Fibers are generally utilized in concrete to manage the plastic shrink cracking and drying shrink cracking.

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Detailed Description for Steel Fiber Reinforced Concrete

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Steel fibres are added to concrete to improve the structural properties,particularly tensile and flexural strength. The extent of improvement in the mechanical properties achieved with SFRC over those of plain concrete depends on several factors, such as shape, size, volume, percentage and distribution of fibres.

The fibers are bonded to the material, and allow the fiberreinforced concrete to withstand considerable stresses during the post-cracking stage.


Type of Fibre:-

Round fibers are the most common type and their diameter ranges from 0.25 to 0.75 mm. 

Rectangular steel fibers are usually 0.25 mm thick, although 0.3 to 0.5 mm wires 



It is versatile material for the manufacture of wide varieties of precast products such as manhole covers, slab elements for bridge decks, highways, runways, and tunnel linings, machine foundation blocks, door and window frames, piles, coal storage bunkers, grain storage bins, stair cases and break waters. 



Flexural Strength: Flexural bending strength can be increased of up to 3 times more compared to conventional concrete.

Fatigue Resistance: Almost 1 1/2 times increase in fatigue strength.

Impact Resistance: Greater resistance to damage in case of a heavy impact.


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