When you buy through links on our articles, Future and its syndication partners may earn a commission. Researchers still puzzle over exactly how Roman concrete was made, but they have a few clues, ...

Nearly two millennia after the height of the Roman Empire, some of its structures are still standing. These marvels have stood the test of time, including the Pantheon in Rome; the Roman aqueducts in ...

Concrete made from recycled diapers instead of sand could be used to build houses, after a proof-of-principle experiment has shown that the resulting material is surprisingly sturdy. Sand is crucial ...