Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement

Geopolymer concrete is seen as a potential alternative to standard concrete, and an opportunity to convert a variety of waste streams into useful by-products. One key driver in geopolymer development is the desire to reduce greenhouse gas emissions from the production of concrete products. This pape...

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Main Authors: McLellan, B., Williams, Ross, Lay, J., Van Riessen, Arie, Corder, Glen
Format: Journal Article
Published: Elsevier Science 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/8444
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author McLellan, B.
Williams, Ross
Lay, J.
Van Riessen, Arie
Corder, Glen
author_facet McLellan, B.
Williams, Ross
Lay, J.
Van Riessen, Arie
Corder, Glen
author_sort McLellan, B.
building Curtin Institutional Repository
collection Online Access
description Geopolymer concrete is seen as a potential alternative to standard concrete, and an opportunity to convert a variety of waste streams into useful by-products. One key driver in geopolymer development is the desire to reduce greenhouse gas emissions from the production of concrete products. This paper presents an examination of the lifecycle cost and carbon impacts of Ordinary Portland Cement (OPC) and geopolymers in an Australian context, with an identification of some key challenges for geopolymer development. The results of the examination show that there is wide variation in the calculated financial and environmental “cost” of geopolymers, which can be beneficial or detrimental depending on the source location, the energy source and the mode of transport. Some case study geopolymer concrete mixes based on typical Australian feedstocks indicate potential for a 44-64% reduction in greenhouse gas emissions while the financial costs are 7% lower to 39% higher compared with OPC.
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spelling curtin-20.500.11937-84442017-09-13T16:08:23Z Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement McLellan, B. Williams, Ross Lay, J. Van Riessen, Arie Corder, Glen Cement Fly ash Carbon dioxide Geopolymer Sustainability Geopolymer concrete is seen as a potential alternative to standard concrete, and an opportunity to convert a variety of waste streams into useful by-products. One key driver in geopolymer development is the desire to reduce greenhouse gas emissions from the production of concrete products. This paper presents an examination of the lifecycle cost and carbon impacts of Ordinary Portland Cement (OPC) and geopolymers in an Australian context, with an identification of some key challenges for geopolymer development. The results of the examination show that there is wide variation in the calculated financial and environmental “cost” of geopolymers, which can be beneficial or detrimental depending on the source location, the energy source and the mode of transport. Some case study geopolymer concrete mixes based on typical Australian feedstocks indicate potential for a 44-64% reduction in greenhouse gas emissions while the financial costs are 7% lower to 39% higher compared with OPC. 2011 Journal Article http://hdl.handle.net/20.500.11937/8444 10.1016/j.jclepro.2011.02.010 Elsevier Science restricted
spellingShingle Cement
Fly ash
Carbon dioxide
Geopolymer
Sustainability
McLellan, B.
Williams, Ross
Lay, J.
Van Riessen, Arie
Corder, Glen
Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
title Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
title_full Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
title_fullStr Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
title_full_unstemmed Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
title_short Costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
title_sort costs and carbon emissions for geopolymer pastes in comparison to ordinary portland cement
topic Cement
Fly ash
Carbon dioxide
Geopolymer
Sustainability
url http://hdl.handle.net/20.500.11937/8444