Decoding Sustainability with a Life Cycle Assessment of Crushed Stone Aggregate Production

Abstract

Aggregate materials play a crucial role in various construction applications and the development of infrastructure, serving as indispensable components for the advancement of any modern economy. The primary objective of this research is to assess the carbon footprint associated with the production of crushed stone aggregate. Comprehensive data has been systematically gathered from diverse stone quarries and crusher units, encompassing various stages of the production process. This data forms the basis for quantifying the emissions of equivalent Carbon Dioxide (CO2) throughout key phases, including quarry operations involving explosive blasting, transportation of boulders to crusher units, and the crushing process in different types of crushing units such as primary and secondary crushers.

The research methodology involves the meticulous collection of data pertaining to the actual energy consumption during different crushing activities. This detailed information has been carefully gathered and subsequently subjected to a thorough analysis to quantify the carbon footprint. The analysis has been facilitated through the utilization of advanced software tools, specifically Simapro and LCAPAVE [1], allowing for a precise assessment of the environmental impact associated with each stage of crushed stone aggregate production.

By employing these sophisticated software applications, the study aims to provide a comprehensive and accurate depiction of the carbon emissions attributed to the entire life cycle of crushed stone aggregate production. This data-driven approach ensures a nuanced understanding of the environmental implications of each step involved, enabling stakeholders to make informed decisions towards sustainable practices and carbon mitigation strategies in the aggregate production industry.