The concrete & climate change

8-06-2020

Cement is responsible for 7% of global greenhouse gas (GHG) emissions, and these are expected to continue to grow. Most are used as concrete, being used globally in building and public works.

It is therefore important to keep it in mind if you want to act against global warming in buildings. However, there are multiple gaps in knowledge about the extent of these emissions. An example of this can be seen in this article in l'Informatiu:
http://informatiu.apabcn.com/blog/lalleugeriment-dels-sostres-de-formigo-armat/

On the other hand, Dr. Jane Anderson and Dr. Alice Moncaster, analyze this aspect extensively in a set of three articles. The first of them has been published in the "Buildings and Cities Journal". This article is the result of a project that aims to better understand the built-in impacts of the use of concrete in buildings, in order to inform and advise policy makers and industry professionals, and provide clear evidence on the way to follow. To do so, the project collects, analyzes, and critiques evidence from multiple sources.

This first article focuses on basic data on the impacts of materials. In recent years, several hundred individual Environmental Product Declarations (EPDs) have been published for cements, aggregates, and concrete mixes, but no publication provides a comparison or overview of them. Therefore, this interesting article provides a first detailed analysis of the EPD for concrete and its components:
https://journal-buildingscities.org/articles/10.5334/bc.59/