EFFECT OF STEEL FIBER AND GLASS FIBER ON MECHANICAL PROPERTIES OF HIGH STRENGTH CONCRETE

NITIN VERMA¹, HEMANT KUMAR², Dr. A. K. JAIN³

^{1, 2}M. Tech. Scholar, Department of Civil and Environmental Engineering, National Institute of Technical

Teachers Training and Research, Bhopal (M.P.) India

³Professor & Head, Department of Civil and Environmental Engineering, National Institute of Technical

Teachers Training and Research, Bhopal (M.P.) India

ABSTRACT

Fibers are generally used as resistrance of cracking and strengthening of concrete. This paper present the effects of crimped steel fibers and alkali resistance glass fibers on the mechanical properties of concrete. Experimental programme consist of conducting compressive strength test, flexural strength test and splite tensile strength on hybrid reinforced concrete. Two types of fibers used are crimped steel fiber of length 45mm with aspect ratio 50 and glass fiber of length 12 mm with aspect ratio 857.1. The main aim of this experiment is to study the strength properties of hybrid reinforced concrete of M20 grade with 0.2%, 0.25%, 0.30%, 0.35% of glass fiber containing by weight of cement and 0.40%, 0.45%, 0.50%, 0.55% of steel fibers containing by volume of concrete. From the experimental results it was observed that samples containing steel and glass fibers showed enhanced properties compared to the normal specimen.

Keywords: Crimped Steel Fibre, Glass Fibers, Flexural Strength, Compressive Strength, Splite tensile Strength Hybrid Fiber Reinforced Concrete