To make aerated concrete, add a foam-forming agent and stir in a significant amount of air. This serves to make the concrete ...

Dear Jim: I am thinking of building one of those concrete/foam block houses for efficiency, security and strength. Since concrete feels so cold, is it really energy efficient and will I be limited on ...

The desire for new and different combined with a willingness to continually push toward the edge of possibility are frequently the fundamental ingredients of architectural innovation. What architects ...

Injecting polyurethane foam at various depths, in areas where soil problems exist is not new. The process has been deployed for decades but protected by patents which limited the number of contractors ...