A REVIEW OF CHEMICAL AND PHYSICAL PROPERTIES OF MUNICIPAL SOLID WASTE INCINERATION BOTTOM ASH AND ITS IMPACT ON CONCRETE PRODUCTION

Abstract

This research assesses the physical, chemical, and mineral characteristics of bottom ash from municipal solid waste incinerators and
its effects when used in place of traditional aggregates in concrete. Data was collected from scopus.com during the period 2010–2024 using a qualitative study approach and then united using the WOSviewer tool to supply orderly illustration maps proving the need for the research. A review of these investigations disclosed essential tendencies in the domain, accentuating the capability of bottom ash as a valuable difference from customary aggregates. As stated by the review’s discoveries, concrete’s properties, including compressive strength, shrinkage, porosity, water permeability, expansion, and shrinkage, vary notably when bottom ash replacements standard particles. Though initially concerning, these changes can be mitigated by applying various treatment techniques. Removing bottom ash using mechanical, chemical, and thermal techniques increases its use rate in concrete while preserving its necessary characteristics, such as durability and structural integrity. Additionally, the study emphasizes the potential for improving bottom ash’s
properties to meet construction industry standards. Reusing bottom ash in buildings reduces the disapproving environmental impact and significantly enhances natural aggregate resources. This, in turn, mitigates dependence on newly obtained materials, reducing the environmental footprint of traditional aggregate extraction. As a result, this research supports auxiliary sustainable development in the building field, contributing to environmental preservation and resource optimization in the long run.