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A comment on Cement's future could be a combination of Carbon Capture and Electrification. Parent comment

Re:Cement's future could be a combination of Carbon Capture ... by robertlagrant on Thursday June 15, 2023 @09:21AM (#36340078)
Three possible, not-mutually exclusive answers:

- Fewer families now then before

- Significant net movement of people (e.g. the UK took in 0.6m immigrants in 2022, pushing up housing requirements) resulting in more houses being needed in some locations even if the world had zero extra people

- Cement isn't reusable, so once it's set it's only useful in that place

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Re:Cement's future could be a combination of Carbon Capture ... by Velofellow on Thursday June 15, 2023 @09:53AM (#36340533)
cement ≠ concrete, but concrete is indeed recyclable. I know TxDOT (likely other agencies and municipalities) allows its use, often as aggregate material for HMAC paving. The cured concrete is crushed, sorted by gradation and used accordingly. Concrete rubble can also be used in retaining walls along with some backfill applications.

https://www.dot.state.tx.us/business/contractors_consultants...

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Re:Cement's future could be a combination of Carbon Capture ... by londons_explore on Thursday June 15, 2023 @09:59AM (#36340617)
Most concrete products can be recycled.

But, due to the very low cost of cement and other related products, it is rarely economical to transport end of life concrete far to be reused.

However, if there are effective taxes on disposing of concrete (as there are throughout the EU+UK), then concrete does tend to get reused.

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