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Experimental Investigation of Eco-friendly High Strength Fiber-reinforced Concrete Developed with Combined Incorporation of Tyre-steel Fiber and Fly Ash by Tauqeer Akhtar; Babar Ali; Nabil Ben Kahla; Rawaz Kurda; Muhammad Rizwan; Mohammad Mohsin Javed; Ali Raza is a Engineering article available to read on EtoBox.

What is Experimental Investigation of Eco-friendly High Strength Fiber-reinforced Concrete Developed with Combined Incorporation of Tyre-steel Fiber and Fly Ash about?

Simultaneous addition of waste fibers and supplementary cementitious materials is a novel and eco-friendly approach to resolve the issues related to brittleness and environmental impact of plain-concrete (PC). This study examines the concrete mixes incorporating different levels of recycled-tyre steel fiber (RTSF) (0, 0.25, 0.5 and 1% by volume fraction) and low-calcium fly ash (FA) (0, 10, 15, 25, and 35% by volume replacement of cement). The studied properties include compressive strength-f CS (28 and 120-days), splitting-tensile strength-f SP (28-days), modulus of rupture-MOR (28-days), water-absorption-WA (28-days), ultrasonic pulse velocity-UPV (28-days) and electrical resistivity-ER (28-days). The experimental results showed that the simultaneous addition of 10–15% FA and 0.25%-0.5%RTSF can enhance the ductility and imperviousness of concrete. The maximum efficiency of RTSF in f SP and MOR was noticed in the concrete mix containing 10% FA. Whereas rise in FA content beyond 15% decreased the overall mechanical strength and efficiency of RTSF. The high strength concrete mix containing 10%FA and 0.5%RTSF showed 83%, 49% and 19% higher MOR, f SP and f CS, respectively than the re

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Author

Tauqeer Akhtar; Babar Ali; Nabil Ben Kahla; Rawaz Kurda; Muhammad Rizwan; Mohammad Mohsin Javed; Ali Raza

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)