Overview

Original Research

MECHANICAL PROPERTIES OF KEVLAR FIBRE REINFORCED CONCRETE: AN EXPERIMENTAL STUDY

IQRA YASEEN 1, Er. AJAY VIKRAM 2, and Er. PREETPAL SINGH 3.

Vol 18, No 09 ( 2023 )   |  DOI: 10.5281/zenodo.8413589   |   Author Affiliation: Student of M.Tech. H&T, Department of Civil Engineering, Rayat Bahra University, Mohali, India 1; Assitant Professor, Department of Civil Engineering, Rayat Bahra University, Mohali, India 2; Assitant Professor and Head, Department of Civil Engineering, Rayat Bahra University, Mohali, India 3.   |   Licensing: CC 4.0   |   Pg no: 1296-1306   |   Published on: 30-09-2023

Abstract

The study investigates the impact of Kevlar fibres on concrete's mechanical properties. Concrete specimens with varying Kevlar fibre content were subjected to two curing periods of 7 and 28 days. The study found a significant relationship between Kevlar fibre content and concrete's compressive strength. As the percentage of Kevlar fibres increased, compressive strength increased significantly. The optimal fibre content range was identified as 12% to 14%, allowing for maximum compressive strength, and the study also explored flexural strength, particularly in prisms. The proportion of Kevlar fibres significantly improved concrete's flexural strength, with the rate of strength gain accelerating with higher fibre percentages. The study also examined split tensile strength, revealing that increased fibre content led to a substantial enhancement in concrete's tensile strength. This makes fibre-reinforced concrete formulations suitable for applications requiring robust resistance against tensile forces.

Keywords

Kevlar Fibre, Compressive Strength, Flexural Strength, Split Tensile Strength, Fibre Reinforced Concrete.