Patent ID: 8516775
Filing Date: 2013-08-27
Classification: E04B,E04C

Abstract:
1. Process of constructing a mortarless wall of masonry units employing as a bonding agent a single component urethane closed-cell foam material and wherein said masonry units each have an aluminum oxide component; said single component urethane closed-cell foam material, after application, curing by absorbing moisture from its surroundings, the process comprising: stacking said masonry units so that they extend in at least one horizontal direction and in a vertical direction, while applying onto surfaces of the masonry units that face one another an amount of said single component urethane foam material, and permitting the single component urethane closed-cell foam material to cure so that the stacked masonry units form a self-standing wall; wherein said single component urethane closed-cell foam material bonds to said masonry units by displacing water molecules that had been attached to molecules of the aluminum oxide component in the masonry units; and wherein at least a plurality of said masonry units are foam-core blocks formed of an outer face of masonry material, an inner face of masonry material, and a foam core of a closed-cell foam material sandwiched between said outer face and said inner face and bonded to them.