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Comparison of Sustainability Performance for Cross Laminated Timber and Concrete

https://research.thinkwood.com/en/permalink/catalogue509
Year of Publication
2013
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Author
Piacenza, Joseph
Tumer, Irem
Seyedmahmoudi, Seyedhamed
Haapala, Karl
Hoyle, Christopher
Publisher
ASME
Year of Publication
2013
Country of Publication
United States
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
Social Impact
Sustainability
Reinforced Concrete
Economic Aspect
Manufacturing
Language
English
Conference
International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Research Status
Complete
Notes
August 4–7, 2013, Portland, Oregon, USA
Summary
As sustainable building design practices become more prevalent in today’s construction market, designers are looking to alternative materials for novel design strategies. This paper presents a case study comparing the sustainability performance of cross laminated timber (CLT) and reinforced concrete. A comparative sustainability assessment of cross laminated timber and concrete, considering economic, environmental, and social aspects was performed. Environmental impact is measured in terms of CO2 equivalent, economic impact is measured with total sector cost (including sector interdependencies), and qualitative metrics were considered for social impact. In order to conduct an accurate performance comparison, a functional unit of building facade volume was chosen for each product. For this paper, several end-of-life strategies were modeled for CLT and concrete facades. To understand environmental, economic, and social impact, three different scenarios were analyzed to compare performance of both CLT and concrete, including cradle to gate product manufacturing, manufacturing with landfill end-of-life, and manufacturing with recycling end-of-life. Environmental LCA was modeled using GaBi 5.0 Education Edition, which includes its own database for elements including materials, processes, and transportation. To compare the economic impact, Carnegie Mellon’s EIO-LCA online tool is used. Finally, social life cycle impact was considered by identifying process attributes of both products that affect the social domain. Based on this analysis, the use of CLT has a significantly lower environmental impact than concrete, however there are additional costs.
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Embodied Carbon in Buildings: Measurement, Management, and Mitigation

https://research.thinkwood.com/en/permalink/catalogue2756
Year of Publication
2018
Topic
Environmental Impact
Application
Hybrid Building Systems
Wood Building Systems
Editor
Pomponi, Francesco
De Wolf, Catherine
Moncaster, Alice
Publisher
Springer
Year of Publication
2018
Country of Publication
Switzerland
Format
Book/Guide
Application
Hybrid Building Systems
Wood Building Systems
Topic
Environmental Impact
Keywords
Embodied Carbon
Embodied Emissions
Calculation
Life-Cycle Assessment
Language
English
Research Status
Complete
ISBN
978-3-319-72796-7
Summary
This book provides a single-source reference for whole life embodied impacts of buildings. The comprehensive and persuasive text, written by over 50 invited experts from across the world, offers an indispensable resource both to newcomers and to established practitioners in the field. Ultimately it provides a persuasive argument as to why embodied impacts are an essential aspect of sustainable built environments. The book is divided into four sections: measurement, including a strong emphasis on uncertainty analysis, as well as offering practical case studies of individual buildings and a comparison of materials; management, focusing in particular on the perspective of designers and contractors; mitigation, which identifies some specific design strategies as well as challenges; and finally global approaches, six chapters which describe in authoritative detail the ways in which the different regions of the world are tackling the issue. Provides a comprehensive, up-to-date guide to embodied carbon calculation and reduction, with a particular focus on understanding uncertainty; includes examples of approaches used by industry professionals, and specific routes to embodied carbon reduction; identifies the methodologies, tools and standards in use around the world.
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