Add Yahoo as a preferred source to see more of our stories on Google. Most people take concrete for granted because it's everywhere. The most-used building material in the world often doesn't get a ...

A civil engineer named Vladimir is warning home builders not to trust the familiar “one to three to three” concrete recipe for foundations. In a recent post on his Zen channel, “Notes of an old ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...