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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/18575

Title: Obtaining reliable embodied carbon values for geosynthetics
Authors: Raja, Jamil
Dixon, Neil
Fowmes, Gary John
Frost, Matthew W.
Assinder, Peter
Keywords: Embodied carbon
Sustainability
Energy
Carbon footprinting
CO2
Geosynthetics
Issue Date: 2015
Publisher: © Thomas Telford (ICE Publishing)
Citation: RAJA, J. ...et al., 2015. Obtaining reliable embodied carbon values for geosynthetics. Geosynthetics International. 22(5), pp.393-401.
Abstract: Changing climate and the damaging effects of carbon dioxide (CO2) on the environment, has led to awareness throughout the construction industry of the need to deliver more sustainable solutions. Robust and rigorous carbon footprinting procedures for assessing solutions and projects can help to identify where action can be taken to reduce CO2 emissions. It also promotes the marketing of those solutions and methods that produce lower CO2 emissions. Geosynthetics often provide a cost-efficient alternative to more ‘traditional’ construction techniques. Recently, work by the Waste and Resources Action Programme in the UK has shown that geosynthetic solutions can also produce much lower CO2 emissions. However, there are still questions as to the reliability of such calculations. Although the methodologies employed are relatively consistent worldwide, the accuracy of the embodied carbon data available for use in calculations remains uncertain. Geosynthetic products are not specifically included in the embodied carbon construction materials databases most commonly employed in Europe, and often generic values for polypropylene and polyethylene are used. This paper presents a study in which the embodied carbon data for geosynthetic products was calculated using first-hand manufacturing process data. The values calculated for two categories of geosynthetics were considerably lower than commonly employed database values. Nonwoven geotextiles had an average embodied carbon value of 2.35 tCO2e/t, with values for example geogrids of 2.97 tCO2e/t for extruded and 2.36 tCO2e/t woven.
Description: This paper is in closed access until 29th September 2016.
Version: Accepted for publication
DOI: 10.1680/gein.15.00020
URI: https://dspace.lboro.ac.uk/2134/18575
Publisher Link: http://dx.doi.org/10.1680/gein.15.00020
ISSN: 1072-6349
Appears in Collections:Closed Access (Civil and Building Engineering)

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