Life-Cycle Assessment of Fly-Ash Blended Concretes
DOI:
https://doi.org/10.15662/IJRAI.2019.0206001Keywords:
Fly Ash, Blended Concrete, Life-Cycle Assessment, Sustainability, Environmental Impact, Greenhouse Gas Emissions, Resource Efficiency, ConstructionAbstract
The construction industry significantly contributes to environmental degradation, primarily due to the production of Ordinary Portland Cement (OPC), which is energy-intensive and emits substantial greenhouse gases. Incorporating fly ash, a by-product of coal combustion, as a partial replacement for OPC in concrete offers a sustainable alternative. This study conducts a Life-Cycle Assessment (LCA) to evaluate the environmental impacts of fly ash-blended concretes compared to conventional OPC concrete. The assessment encompasses raw material extraction, transportation, concrete production, and end-of-life stages. Results indicate that fly ash incorporation reduces global warming potential, energy consumption, and resource depletion, highlighting its role in promoting sustainable construction practices.
