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Brownfield redevelopment: a dual currency analysis of soil stabilisation methods

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dc.contributor.author Brown, L
dc.contributor.author Perera, S
dc.contributor.author Rodrigo, MNN
dc.contributor.editor Sandanayake, YG
dc.contributor.editor Gunatilake, S
dc.contributor.editor Waidyasekara, KGAS
dc.date.accessioned 2023-01-13T03:08:07Z
dc.date.available 2023-01-13T03:08:07Z
dc.date.issued 2018-06
dc.identifier.citation ********** en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/20157
dc.description.abstract Evidence of climate change, such as rising sea levels and higher average temperatures, has made society become increasingly carbon conscious in recent years. Therefore, carbon estimating is becoming prominent and this research explores methods of quantifying embodied carbon of different soil stabilisation methods. This research aims at evaluating the different methods of soil stabilisation for the remediation of previously developed, brownfield sites, using a dual currency approach of investigating both cost and carbon. Therefore, the effect of using different cementitious binders such as Pulverised Fuel Ash (PFA) and Ground Granulated Blastfurnace Slag (GGBS), in lieu of Ordinary Portland Cement (OPC) was investigated. Primary data, in the form of Bills of Quantities, was collected from a civil engineering contractor who has extensive experience in the land remediation sector in the UK. This enabled cost and carbon rates to be applied to the work items, to estimate in terms of cost and carbon inputs. This data was analysed using descriptive statistics to investigate if there is a correlation between cost and carbon inputs. The study revealed that to stabilise soil, soil matrix changes from one binder to another, whereas a higher content of GGBS and PFA to lime in the alternative methods than there is for OPC. In lieu of OPC and PFA, GGBS was identified as the most cost effective and lowest carbon emitting cementitious binder. However, though PFA also signified a carbon saving, PFA was comparatively costly. Further, a perfectly positive correlation lies between the mean elemental unit rates for costs and carbon. en_US
dc.language.iso en en_US
dc.publisher Ceylon Institute of Builders en_US
dc.relation.uri https://ciobwcs.com/downloads/WCS2018-Proceedings.pdf en_US
dc.subject Cementitious binders en_US
dc.subject Correlation en_US
dc.subject Embodied carbon en_US
dc.subject Soil stabilisation en_US
dc.title Brownfield redevelopment: a dual currency analysis of soil stabilisation methods en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Architecture en_US
dc.identifier.department Department of Building Economics en_US
dc.identifier.year 2018 en_US
dc.identifier.conference 7th World Construction Symposium 2018 en_US
dc.identifier.place Colombo en_US
dc.identifier.pgnos pp. 116-125 en_US
dc.identifier.proceeding Built Asset Sustainability: Rethinking Design, Construction and Operations en_US


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