Jordan Journal of Civil Engineering

Paper Detail

Mechanical and Durability Performances of Alkali Resistant Glass Fiber Reinforced Concrete

Volume 17, No. 2, 2023
Received: 2022/08/27, Accepted: 2023/02/04


Shaik Hussain; Jitendra Singh Yadav;


Concrete being the most widely used construction material in the world, lacks strength in direct tension and flexure. Attempts to reinforce concrete in tension include the use of steel rebars to strengthen the tensile side of concrete, use of discrete fibers as a reinforcing medium. The study conducted in the manuscript details the effects of including Alkali resistant glass fibers in concrete. Mechanical strength such as Compressive strength, flexural strength, modulus of elasticity and bond strength have been measured along with porosity and resistance to accelerated carbonation. Five water binder ratios 0.40, 0.45, 0.50, 0.55 and 0.60 had been used to prepare the design mix proportions. The optimum fiber dosage was found to be 1.5% by weight of cement used. The same had been adopted in the design mix proportions. The average increase in compressive strength and flexural strength was 13% and 28%, respectively. Alkali Resistant Glass fiber Concrete showed decreased resistance to carbonation when compared to control mix. Results indicate that glass fibers play a predominant role in providing flexural strength to concrete. The pull-out strength of fiber added to an extra post-cracking flexural strength. The inclusion of glass fibers imparted a maximum addition of 44% increase in the flexural strength compared to control concrete. The inclusion of alkali resistant glass fibers in concrete pave way for a leaner mix and eradicates the possibility of congestion of steel reinforcement for certain structures.


Alkali resistant glass fibers, Accelerated carbonation, Bond strength, Compressive strength, Flexural strength, Thermogravimetric analysis; Scanning electron microscopy, Fourier Transform Infrared Spectroscopy