| 摘要 |
<p>Prefabricated slab, particularly in concrete, which can be used more especially for producing floors, characterised in that each of its side faces comprises: - at its low part, at least one longitudinal groove 12 into which bonding concrete 18 is poured to form a key between consecutive slabs; - at its upper part, hollows 14 which, when filled with the bonding concrete, hold in position and separate the horizontal ties across the bonding joints. <IMAGE></p> |
