• Syed Haamid Ali Andrabi
• Ankaj Minhas

Steel fibers generally provide adequate resistance to cracking and strengthening of concrete. In this project various tests are being carried out on steel fiber reinforced concrete to check the influence of fibers on tensile strength and flexural strength of concrete and the partial replacement of cement with marble dust is done to make it economical as marble dust is a waste product . Various research papers show that the steel fibers impart the maximum strength to concrete in comparison to glass and polypropylene fibers. Hence, in this project the effect of addition of steel fibers and marble dust to the pavement quality concrete is observed. An experimental investigation on the behavior of concrete specimens reinforced with steel fibers and partial replacement of cement with marble dust and subjected to tensile and flexural loading is presented. Tests were conducted on specimens with four different percentages of steel fibres added (0%, 0.5%, 1% and 1.5%).Also the cement in concrete was replaced by different amounts of marble dust (0%, 15% and 30%). It was observed that Steel fibre reinforced conrete specimens showed enhanced strength properties compared to that of normal specimens. The tensile strength and flexural strength of the specimen increased indefinitely on addition of more percentage of steel fibres. The decrease in strength of concrete due to replacement of cement by a waste product i.e., marble dust is compensated by the enhancement in strength due to addition of steel fibres. So the optimum amount of steel fibres used is 1% by volume and 15% marble dust can be used effectively without any compromise with the strength of concrete.

Concrete , steel fibres, marble dust, compressive strength, flexural strength, split tensile strength.

"EFFECT OF STEEL FIBRES AND MARBLE DUST ON STRENGTH CHARACTERISTICS OF PAVEMENT QUALITY CONCRETE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.584-590, June 2019, Available :http://www.jetir.org/papers/JETIR1907M77.pdf

"EFFECT OF STEEL FIBRES AND MARBLE DUST ON STRENGTH CHARACTERISTICS OF PAVEMENT QUALITY CONCRETE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp584-590, June 2019, Available at : http://www.jetir.org/papers/JETIR1907M77.pdf