This concrete can trap CO2 emissions forever
http://money.cnn.com/2018/06/12/technology/concrete-carboncure/index.html
How much it costs to produce concrete is an important factor to make it common to use that concrete.
If it's not competitive price with conventional concrete, it will be difficult to overwhelm the latter.
It's possible to impose tax on conventional one to make the new concrete competitive. But, who distinguishes the new one from the conventional one to prevent injustice?
It's difficult to compose the system.
