Strategies for developing more sustainable dosages for soil-coal fly ash-lime blends

Consoli, NC; da Rocha, CG; Maghous, S

Strategies for developing more sustainable dosages for soil-coal fly ash-lime blends

Consoli, NC da Rocha, CG Maghous, S

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: Journal of Materials in Civil Engineering, 2016, 28, (11)
Issue Date:: 2016-11-01

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Field	Value	Language
dc.contributor.author	Consoli, NC
dc.contributor.author	da Rocha, CG
dc.contributor.author	Maghous, S
dc.date.accessioned	2022-08-15T21:22:25Z
dc.date.available	2022-08-15T21:22:25Z
dc.date.issued	2016-11-01
dc.identifier.citation	Journal of Materials in Civil Engineering, 2016, 28, (11)
dc.identifier.issn	0899-1561
dc.identifier.issn	1943-5533
dc.identifier.uri	http://hdl.handle.net/10453/160255
dc.description.abstract	Sustainability is becoming a major concern for geotechnical engineering as this industry consumes considerable amounts of resources. Efforts have been made to reduce such impacts by incorporating industrial wastes in new materials and identifying materials that have a low burden on the environment. Nonetheless, there is still limited guidance on how to develop resource-efficient dosages for geotechnical materials. On the other hand, equations in which strength is formulated as a function of experimentally controlled variables (e.g., lime content or dry unit weight) have been devised for such materials. This means that distinct combinations of values can be assigned to these variables to attain a target strength. These equations allow the rate of gains in strength provided by each variable to be jointly assessed with the resources required to produce such gains. This manuscript proposes a method to rank such variables when jointly considering mechanical and environmental performances. This ranking allows a number of strategies to develop resource efficient dosages to be elicited. The proposed method is used to devise guidelines for a lime-treated soil. Results show that the main strategy is to increase dry unit weight rather than lime content as the former is more efficient when jointly considering gains in strength and resource consumption. The method presented herein is an initial effort towards the formulation of a comprehensive framework for optimizing the dosages of geotechnical materials, integrating environmental and mechanical considerations.
dc.language	English
dc.publisher	ASCE-AMER SOC CIVIL ENGINEERS
dc.relation.ispartof	Journal of Materials in Civil Engineering
dc.relation.isbasedon	10.1061/(ASCE)MT.1943-5533.0001648
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0912 Materials Engineering
dc.subject.classification	Building & Construction
dc.title	Strategies for developing more sustainable dosages for soil-coal fly ash-lime blends
dc.type	Journal Article
utslib.citation.volume	28
utslib.for	0905 Civil Engineering
utslib.for	0912 Materials Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-15T21:22:24Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	28
utslib.citation.issue	11

Abstract:

Sustainability is becoming a major concern for geotechnical engineering as this industry consumes considerable amounts of resources. Efforts have been made to reduce such impacts by incorporating industrial wastes in new materials and identifying materials that have a low burden on the environment. Nonetheless, there is still limited guidance on how to develop resource-efficient dosages for geotechnical materials. On the other hand, equations in which strength is formulated as a function of experimentally controlled variables (e.g., lime content or dry unit weight) have been devised for such materials. This means that distinct combinations of values can be assigned to these variables to attain a target strength. These equations allow the rate of gains in strength provided by each variable to be jointly assessed with the resources required to produce such gains. This manuscript proposes a method to rank such variables when jointly considering mechanical and environmental performances. This ranking allows a number of strategies to develop resource efficient dosages to be elicited. The proposed method is used to devise guidelines for a lime-treated soil. Results show that the main strategy is to increase dry unit weight rather than lime content as the former is more efficient when jointly considering gains in strength and resource consumption. The method presented herein is an initial effort towards the formulation of a comprehensive framework for optimizing the dosages of geotechnical materials, integrating environmental and mechanical considerations.

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http://hdl.handle.net/10453/160255