Japanese researchers are unveiling a fast-setting, CO2-absorbing material that could be used to rapidly rebuild earthquake-hit areas. It needs an epoxy-resin type substance to provide tensile strength (rather than rebar reinforcement as with conventional concrete), but once it has set, its strength rivals conventional concrete. I do have quite a few questions:
- Any claims on longevity?
- Does it require pure CO2 to set, or could the tailpipe emissions from a power plant do the trick? This is a huge question in terms of its overall sustainability.
- Um, cost?