Impacts of booming concrete production on water resources worldwide

Sabbie A. Miller (), Arpad Horvath and Paulo J. M. Monteiro
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Sabbie A. Miller: University of California, Davis
Arpad Horvath: University of California, Berkeley
Paulo J. M. Monteiro: University of California, Berkeley

Nature Sustainability, 2018, vol. 1, issue 1, 69-76

Abstract: Abstract Concrete is the most-used construction material worldwide. Previous studies on the environmental impacts of concrete production have mainly focused on the materials involved and energy consumption, as well as CO2 emissions; little is known, however, about its water consumption as well as the effective measures to reduce such consumption. We quantify water use of global concrete production in 2012 and project the value to 2050. The results show that concrete production was responsible for 9% of global industrial water withdrawals in 2012 (this is approximately 1.7% of total global water withdrawal). In 2050, 75% of the water demand for concrete production will likely occur in regions that are expected to experience water stress. Among possible ways of mitigating water demand are choosing the appropriate selection of electricity fuel mixes and improved processing of raw materials; however, these strategies may conflict with greenhouse gas emissions reduction goals. This work develops a baseline estimate for water consumption and withdrawal for concrete production and identifies locations for targeted mitigation.

Date: 2018
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DOI: 10.1038/s41893-017-0009-5

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