| 摘要 |
<p>OF THIS DISCLOSURE Cementitious building blocks having upstanding male projections on one planar surface so as to be disposed in a particular geometric array which locates the projections in the corners of passages extending through the blocks. The projections are supported on corner corbels which carry corner spanning shelves which extend inwardly into the passages so as to locate the projections in alignment with the open corners at the opposite ends of the passages. The open corners and aligned male projections allow selfaligning stacked interlocking mortarless assembly of a plurality of such blocks for the construction of buildings, walls and the like.</p> |
