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[–] 25 points 1 year ago (5 children)

Did you read that link before posting?

In comparison with other construction materials (aluminium, steel, even brick), concrete is one of the least energy-intensive building materials.[2]

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  • [–] 13 points 1 year ago (4 children)

    Except it isn't just about the energy intensity, but specifically the CO2 emission from the concrete process itself.

    From the link's sources:

    https://www.chathamhouse.org/sites/default/files/publications/2018-06-13-making-concrete-change-cement-lehne-preston-final.pdf

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  • [–] 4 points 1 year ago (3 children)

    The issue isn't concrete or cement inherently but how much of is used. And it's used because it's either the most cost-effective material or just the only one able to deliver the required specs.

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  • [–] 7 points 1 year ago (2 children)

    I thought the issue was sand/silica and the fact that we may exhaust the ressources to do cement eventually. It takes a lot of sand materials if I recall correctly ?

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