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Engineering360: "Aramco, KAIST propose curing concrete with CO2"

09/28/2021 11:29 AM

Read Engineering360 article: Aramco, KAIST propose curing concrete with CO2.

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Guru

Join Date: May 2008
Location: Aggieland, Texas
Posts: 586
Good Answers: 7
#1

Re: Aramco, KAIST propose curing concrete with CO2

09/29/2021 3:12 AM

It would be helpful to know how this can be done. Getting 28 day strength in 3 days would be great. However, getting the steam and co2 into the mix under controlled conditions may be a problem.

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Guru

Join Date: Jul 2006
Location: Eastern Kansas USA
Posts: 1391
Good Answers: 119
#2

Re: Aramco, KAIST propose curing concrete with CO2

09/29/2021 11:23 AM

Their promotional piece says it is done at a precast plant. They give test results to support the short curing time claimed. They also claim lower water permeability and lower damage from sulfate or chlorine attack but provide no data in support of these. They say they will be looking at even higher CO2 levels. It appears this is a promotional piece and not a scholarly report. Further information would be helpful, such as the percent of world-wide concrete usage that is precast suitable for this process. --JMM

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