Title:
Role of Coal Ash in Producing Low Carbon Cements of the Future
Author(s):
Vaidya
Publication:
Web Session
Volume:
ws_S25_Vaidya.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/30/2025
Abstract:
Currently, the concrete industry is going through a major overhaul in its practices, particularly in the ways cementitious materials are handled. This change is primarily driven by the 2050 Carbon Neutrality goals set forth by various industry sectors to limit global greenhouse gas emissions (GHG). While there are several aspects of the concrete industry that contribute towards the GHG emissions, this talk will focus on the role of cement and supplementary cementitious materials (SCM), mainly fly ash, in achieving the targeted reductions in GHG emissions. It is well established that the production of Portland cement is a major source of GHG emissions on the front end of the concrete industry. As such, over the past decade extensive studies have been conducted by the private and government agencies on improving the cement production. These studies have identified various methods of reducing GHG emissions at the cement plant e.g., process optimization, alternative fuels, carbon capture utilization and storage (CCUS), and clinker substitution.