Using Optimization Techniques on Mechanical Characteristics and Sustainability Assessment of Rubberized Concrete Blended with PVA Fiber Through Response Surface Methodology

Bheel, Naraindas and Baikerikar, Abhijeet Vidyadhar and Mohammed, Bashar S. (2025) Using Optimization Techniques on Mechanical Characteristics and Sustainability Assessment of Rubberized Concrete Blended with PVA Fiber Through Response Surface Methodology. International Journal of Concrete Structures and Materials, 19 (1). ISSN 19760485

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Abstract

The construction sector is promoting eco-friendly materials to combat global warming. Researchers use crumb rubber (CR) in concrete due to its ductility and hardness, but studies show it can decrease strength. Therefore, the addition of PVA fiber improves the mechanical properties of CR concrete. The research aims to assess the mechanical and physical characteristics of concrete by utilizing RSM modeling and optimization, comparing the effects of CR replacement for sand and PVA fiber by volume fraction. It has been observed that the optimum compressive, tensile and flexural strengths were observed by 49 MPa, 4.31 MPa, and 5.88 MPa at 10 of sand replaced with CR and 1.5 of PVA fiber together at 28 days, respectively. In addition, water absorption improves with increased CR and PVA fiber in concrete, while dry density decreases with increased CR and PVA fiber quantity in concrete at 28 days, respectively. Moreover, RSM was utilized to develop response prediction models with R2 coefficients ranged from 97 to 99. Furthermore, the enhancement of embodied carbon is seen when the volume percent of PVA fiber and CR increases in concrete. Additionally, using 10 CR instead of sand and adding 1.5 PVA fiber has been proven to deliver favourable outcomes for the construction sector therefore it is recommended for construction purpose. © The Author(s) 2024.

Item Type: Article
Impact Factor: Cited by: 0; All Open Access, Gold Open Access
Uncontrolled Keywords: Bending strength; Brinell Hardness; Compressive strength; Rockwell hardness; Tensile strength; Construction sectors; Crumb rubber; Embodied carbons; Mechanical; Mechanical characteristics; Modeling and optimization; Optimization techniques; Property; PVA fiber; RSM modeling and optimization; Rubberized concrete
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 04 Jul 2025 16:32
Last Modified: 04 Jul 2025 16:32
URI: http://scholars.utp.edu.my/id/eprint/38857

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