Green / Eco-Friendly

How does concrete produce CO2

  • Last Updated:
  • Feb 6th, 2021 7:33 pm
[OP]
Deal Addict
User avatar
Aug 12, 2007
4685 posts
805 upvotes
Waterloo

How does concrete produce CO2

I absolutely realize that Concrete production creates enormous amounts of CO2.

I am curios if anyone is aware mechanisms / reactions involved of the CO2 produced after its installed ?
----
Pay it forward.
3 replies
Deal Fanatic
Jul 7, 2017
5658 posts
2495 upvotes
SW corner of the cou…
I think it's the process of making concrete powder.

Seems half the CO2 production come from burning lime to make clinker. Since concrete is heavy, lots of energy for transportation.
Cream rises to the top. So does scum.
Deal Expert
Jan 27, 2006
15917 posts
8786 upvotes
Vancouver, BC
Don't forget disposal. Cracking broken concrete down to small enough chunks so that it can be lifted out and trucked away to someplace that will further break down those smaller chunks should/does take a lot of energy hence emissions.
Deal Fanatic
Jul 7, 2017
5658 posts
2495 upvotes
SW corner of the cou…
craftsman wrote: Don't forget disposal. Cracking broken concrete down to small enough chunks so that it can be lifted out and trucked away to someplace that will further break down those smaller chunks should/does take a lot of energy hence emissions.
Unless it is built to last. Face With Stuck-out Tongue And Tightly-closed Eyes

Amazingly, the Romans knew how to make concrete and make it last. The dome of the Pantheon in Rome (and the rest of the building) is standing after 1,900 years. The roof is apparently graded between fine/light and heavy/coarse.

Less spectacular are Roman breakwaters. Volcanic ash was apparently one of their secret ingredients.
Cream rises to the top. So does scum.

Top