Engineers at Purdue University have developed a new cement recipe that can absorb CO2 twice as fast as usual, hopefully turning it into a useful carbon sink.
Cracking concrete's carbon problem
Concrete is the world’s most commonly used building material, but with cement production estimated to be responsible for 8 percent of global CO2 emissions, there's also a huge downside. So it's no surprise that making concrete more environmentally-friendly is a major focus for scientists and engineers.

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Aside from simply finding a new use for discarded goods, we’ve seen how adding recycled rubber tires to concrete can make the material stronger and more heat resistant.
Concrete has incredible strength, but it doesn’t stand up well against bending. This new type of concrete can not only bend better, but doesn’t require cement to make, reducing its environmental footprint.
A new study indicates that discarded concrete becomes even stronger than it was before, when wood waste is added to it.
For over a century, steel rebar has been the go-to material to reinforce concrete but a new approach promises to make the common building material stronger and more environmentally friendly.
A novel adaptation of a common pre-stressing technique has been used to produce concrete that is lighter but with comparable strength, an advance that if widely applied, could save significant amounts...
Buildings that are constructed with military or civil defense applications in mind need to be tough ...
MIT researchers claim to have developed a new method that can clean up the cement production process.
The cement used to construct concrete sewerage systems around the world does a mighty job of helping wash away our waste, but does have its shortcomings.
Australian scientists suggest glass waste could be used to make concrete that's stronger and cheaper than ever.