Comment on anons brother has some strong opinions
masterspace@lemmy.ca 3 weeks agoDid 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]
okwhateverdude@lemmy.world 3 weeks ago
Except it isn’t just about the energy intensity, but specifically the CO2 emission from the concrete process itself.
From the link’s sources:
chathamhouse.org/…/2018-06-13-making-concrete-cha… Image
RaivoKulli@sopuli.xyz 3 weeks ago
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.
Tetsuo@jlai.lu 3 weeks ago
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 ?
AnUnusualRelic@lemmy.world 3 weeks ago
And not just any sand.
Swedneck@discuss.tchncs.de 2 weeks ago
it’s so bad that people are literally stealing sand from beaches to sell under the table