| 摘要 |
<p>A method of moulding from solidifiable material a building block (101 ) comprised of parallel walls (102-105) that are transversely spaced from each other so that adjacent walls have opposed inner surfaces and further comprised of at least one cross-wall (106-108) which connect said opposed inner surfaces of the parallel walls (102-105) and which incorporates between its end regions a recess (116) extending across the width of the cross-wall. The method comprises introducing the solidifiable material into a mould (200) in which the upper surfaces of the parallel walls (102-105) and the end regions of the cross-wall (106-108) are formed in open- topped portions of the mould (200), effecting compaction of the solidifiable material through said open-topped regions, and solidifying said material.</p> |
