The Effect of Corrosion on Steel Fiber Reinforced Concrete
The IUP Journal of Structural Engineering, Vol. X, No. 1, January 2017, pp. 16-24
Posted: 7 May 2018
Date Written: January 19, 2017
Ordinary cement concrete has very low tensile strength which leads to the failure of concrete. It has been found that different types of fibers added in specific percentage to concrete improves the mechanical properties, durability and serviceability of the structure. It is now established that one of the important properties of Steel Fiber Reinforced Concrete (SFRC) is its superior resistance to cracking and crack propagation. In this paper, the effect of fibers on the strength of concrete for M40 grade has been studied by varying the percentage of fibers in concrete. The fiber content was varied by 0.25%, 0.50%, 0.75% and 1% by volume of concrete. Cubes of size 150 mm x 150 mm x 150 mm were used to conduct the compressive strength before and after corrosion test. All the specimens were cured for a period of 3, 7 and 28 days before testing. A considerable reduction in corrosion potential was noticed. The results indicate that the strength degradation was marginal in the case of SFRC before and after accelerated corrosion test. The slump cone test results revealed that workability gets reduced with the increase in fiber content.
Keywords: Crimped Steel Fibers, Steel Fiber Reinforced Concrete (SFRC), Accelerated Corrosion
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