| 摘要 |
<p>A self supporting structural element of masonry material is formed by glueing at least two pieces of limestone, porous concrete, Ytong stone, brick (including sand-lime brick), or other porous masonry material together with a two-component reactive polyurethane composition and allowing the composition to cure. The structural element may be a vertical structure such as a wall element, or a horizontal structure such as a floor or walkway element. The resulting structural element is self-supporting in transport and placement. A plasticizer is preferably employed in the composition to facilitate penetration of the adhesive into the surfaces of the bonded limestone or other masonry stone material.</p> |
