• Prof. Abdul Ghaffar Noor Mohammad

In connection with previous study have published paper on Compression test and flexural test further beam specimen is used to calculate flexural shear strength is discussed in this research is based on the investigation of the use of steel fibres in structural concrete to enhance the mechanical properties of concrete for high strength concrete. The objective of this study is same as previous study was done to determine and compare the differences in properties of concrete containing without fibres and concrete with fibres. This investigation was carried out using several tests, which included workability test, compressive test, indirect tensile test, flexural test and modulus of elasticity test. A total of eleven mix batches of concrete containing 0% to 5% with an interval of 0.5% by wt. of cement. ‘Hooked’ steel fibres were tested to determine the enhancement of mechanical properties of concrete. The workability of concrete significantly reduced as the fibre dosage rate increases. This was assessed through standard slump test Results of compressive strength test indicated that the use of fibre in concrete might not efficiently increase in strength. In flexural and indirect tensile test showed specimens with fibres that drastic increase in strength from specimens without fibres. A moderate increase in modulus of elasticity of the fibre reinforced concrete was indicated in modulus of elasticity test. The usage of fibres was fully utilized when it comes to post-cracking stage, as it increase on ductility and toughness of concrete. This was examined through the load/deformation curve of flexural strength test and stress/strain diagram of modulus of elasticity test. It is found the use of steel fibres influence the mechanical properties of concrete in a different manner. As to create a cost efficient fibre reinforced structure, these changes on fibres are vital to the design and construction. However, further investigations were highly recommended and should be carried out to understand more mechanical properties of fibre reinforced concrete.

Steel fibres, FRC, Workability, Strengths, NDT, plasticizers.

"Steel Fibre Reinforced Concrete Flexural Shear Strength", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.702-706, May-2018, Available :http://www.jetir.org/papers/JETIR18IC126.pdf

"Steel Fibre Reinforced Concrete Flexural Shear Strength", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp702-706, May-2018, Available at : http://www.jetir.org/papers/JETIR18IC126.pdf