Title:
Demonstration of Environmental Impact of Concrete Pavement Full Life Cycle Using Caltrans eLCAP Software
Author(s):
Ali Butt
Publication:
Web Session
Volume:
ws_S23_AliButt.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
4/2/2023
Abstract:
Supplementary cementitious materials (SCMs) reduce clinker content in concrete and thus have the promise of reducing the overall greenhouse gas emissions of concrete. However, traditional SCMs such as fly ash and slag are increasingly imported or transported from certain locations in the US; thus, long-distance shipping and transportation adds to the overall GHG emissions of concrete. In this presentation, we present the use of locally available alternative SCMs in California, such as agricultural ashes (rice hull ash) and biomass ashes and natural pozzolans (volcanic ash, perlite, diatomaceous earth, etc.) and compare the global warming potential over the complete life cycle of the concrete pavement.