Life Cycle Assessment of Cement Production with Marble Waste Sludges.

ABSTRACT: The construction industry has a considerable environmental impact in societies, which must be controlled to achieve adequate sustainability levels. In particular, cement production contributes 5-8% of CO2 emissions worldwide, mainly from the utilization of clinker. This study applied Life Cycle Assessment (LCA) methodology to investigate the environmental impact of cement production and explore environmental improvements obtained by adding marble waste sludges in the manufacture of Portland cement. It was considered that 6-35% of the limestone required for its production could be supplied by marble waste sludge (mainly calcite), meeting the EN 197-1:2011 norm. Energy consumption and greenhouse gas (GHG) emission data were obtained from the Ecovent database using commercial LCA software. Al

SUBMITTER: Sanchez AR 

PROVIDER: S-EPMC8535264 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature