Climate Impact Optimization in Concrete Bridge Construction

How to construct climate smarter versions of standard bridges

SOURCE: WSP

DESCRIPTION:

This article was first presented at the 39th IABSE Symposium—Engineering the Future—in Vancouver, Canada, September 2017.

Abstract

Estimates indicate that the total climate impact, from a lifecycle perspective, generated by Swedish construction processes reaches the same magnitude as emissions from all passenger cars in Sweden. A large part of the emissions from construction of roads and railways arise from production of steel and concrete used in bridges and other infrastructure structures. In this research, several cases of existing concrete bridges have been investigated. The case studies are in a very firm way analyzed, and then opportunities for reducing climate gas emissions are described and elaborated upon. Accordingly, design and dimensioning through the use of today’s technology and material selection are discussed. Without developing new ways to construct bridges, or comparing concrete with other materials, a useful guide on how to use technology and opportunities that are available for constructing climate smarter versions of standard bridges today is developed and described.

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KEYWORDS: TSX:WSP, WSP, manufacturing, construction

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