api 2218

Lightweight concretes use very light aggregates such as vermiculite or perlite (instead of gravel) with cements that are resistant to high temperatures. Dry densities range from 25 to 80 lbs/ft3 (400 -1300 kg/m3). Lightweight concretes are usually sprayed on, but may be troweled or formed in place using reinforcing mesh. ................
................

In order to avoid copyright disputes, this page is only a partial summary.