Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 43, Issue -, Pages 125-130Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2013.01.023
Keywords
CO2; Geopolymer; Ordinary Portland cement (OPC); Concrete; Carbon dioxide equivalent (CO2-e)
Categories
Funding
- Department of Civil Engineering at Monash University
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Concrete for construction has traditionally been based on an Ordinary Portland Cement (OPC) binder. Geopolymers, an alternative binder based on fly ash (a fine waste collected from the emissions liberated by coal burning power stations) that is activated by an alkaline activator, have potential to lower the significant carbon footprint of OPC concrete. This paper presents the results of comprehensive carbon footprint estimates for both geopolymer and OPC concrete, including energy expending activities associated with mining and transport of raw materials, manufacturing and concrete construction. Previous studies have shown a wide variation of reported emission estimates: the results of this study are benchmarked with data from those studies. (C) 2013 Elsevier Ltd. All rights reserved.
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