Conversation

Earth | Cities | The Guardian
https://www.theguardian.com/cities/2019/feb/25/concrete-the-most-destructive-material-on-earth

It's not fair to blame #concrete for foolish construction projects or for corruption in public works; OTOH the point about CO2 emissions from cement production is absolutely correct.

Oddly the writer missed the problem that concrete is highly alkaline, and thus that unhardened concrete is toxic.

#civil #engineering