Effect of the confinement type on the mechanical performance of glass waste concrete: Experimental and numerical modeling

Abstract

Disposing glass into open spaces and landfills is among the most serious environmental threats, as well as a source of potential health risks around the world. Therefore, in the construction sector, recovering discarded glass as a building material is gaining popularity since it reduces greenhouse gas-footprint and associated environmental problems. Our paper investigates experimental and numerical modeling of the uni-axial compression behavior at 28 days of concrete cylinders containing colored waste glass (WG) and confined by a polypropylene textile. In doing so, an experimental protocol was performed by partial substitution in concrete to reduce the cement and sand levels of 0%, 5%, 10% and 15%. The best-performing variant is confined with textile sourced from the salvage sector too though. In this section, we studied the experimental and numerical behavior taking into account the type of confinement such as total confinement (TCC), partial confinement concrete circular (PCCC), and partial confinement concrete helical (PCCH). The obtained results in terms of stress evolution are presented and discussed, indeed, they represent a promising revelation regarding the improvement in terms of rigidity. The confrontation of the experimental and numerical results shows a satisfactory agreement.