| 摘要 |
<p>The invention relates to lost formwork for producing a ribbed slab, characterised in that said formwork comprises spaced-apart blocks (14) arranged in such a way as to define, therebetween, a network of grooves (16) oriented in at least two directions, and at least one plate (24) on which the blocks (14) are mounted, making it possible to position the blocks in relation to each other.</p> |
