Title: Impact resistance of waste tyre rubber and silica fume-based concrete mixes

Authors: Satnam Singh; Gurpreet Kaur

Addresses: Department of Civil Engineering, Gulzar Institute of Engineering and Technology, Ludhiana – 141401, Punjab, India ' Department of ECE, CT Institute of Engineering, Technology and Management, Jalandhar – 144020, Punjab, India

Abstract: In this paper, the feasibility of using waste tyre rubber and silica fume-based concrete mix is tested for designing non-structural applications that can bear a sudden impact of specified limit. The compressive strength and impact resistance is tested for ten different concrete design mixes (as per Indian Standard Codes) in which coarse aggregates, fine aggregates and cement is replaced with varying proportions of chipper rubber (10%, 15%, 20% and 30%), crumbed rubber (10%, 20% and 30%) and silica fume (5%, 10% and 15%) respectively. The mechanism used for repeated-impact testing is manually designed using drop-weight method. The comparative analysis of compressive strength and impact resistive of proposed concrete mix is performed with conventional M20 grade concrete mix. It is observed that the compressive strength of waste tyre rubber and silica fume-based concrete mixes is lower than the conventional (M20) concrete, while the impact resistance is higher.

Keywords: compressive strength; impact resistance; impact testing; Indian Standard Codes; rubberised concrete; silica fume.

DOI: 10.1504/IJSTRUCTE.2022.119241

International Journal of Structural Engineering, 2022 Vol.12 No.1, pp.1 - 13

Received: 27 Apr 2020
Accepted: 29 Aug 2020
Published online: 30 Nov 2021 *

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