About how to make concrete

https://www.ted.com/talks/tom_schuler_how_we_could_make_carbon_negative_concrete/transcript?language=ja#t-73460https://www.ted.com/talks/tom_schuler_how_we_could_make_carbon_negative_concrete/transcript?language=ja#t-73460

Recently the way to make concrete has been evolved.
Generally the traditional way to make cement have some problems.
One of them is to emit a huge amount of dioxide carbon  CO2 to atmosphere. the process to make cement arise a huge of amount CO2 . Because of this, the cement industry is the second - largest industrial emitter of CO2.

the new way to make concrete is not used water. the concrete with the new way  consists of CO2 instead of water.
the concrete is more durable.

Moreover, using CO2 which collected  from waste gas of industrial facilities  is contribute for decreasing CO2 overall .

I don't know in detail,  during curing, the chemical reaction with cement breaks apart the CO2, capturing the carbon to make limestone, and that limestone's used to bind the concrete together.

Really, these days  I feel  the technology evolution speed is more faster, especially in foreign countries.

thank you