An innovative alternative to concrete could enable important coastal restoration work to take place. The material Xiriton, ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The use of concrete as a construction material has been around for millenia: Historians say that ancient ...
Nobody knows who did it first, or when. But by the 2nd or 3rd century BCE, Roman engineers were routinely grinding up burnt limestone and volcanic ash to make caementum: a powder that would start to ...