For that reason, most lightweight mixes have air content higher than the 3% maximum required by ACI for hard troweled floors. Concrete suppliers have told me air is in the mix to aid with pumping ...

An architecture PhD student at ETH Zurich has developed a simple solution for building concrete floors in a more ...

The dead load was reduced by 25-30% using lightweight concrete in the floors of the Comcast Center.Courtesy of the Expanded, Shale, Clay and Slate Institute SLC has a lower density than standard ...

Currently, the new technology isn't suited for buildings taller than five floors ... Engineers unveil lightweight tech that ...