| 摘要 |
The present invention relates to a prefabricated module for constructing modular floors. The module comprises a trimmed joist (2) provided with a lower intrados face (20) and an upper extrados face (21) which exhibits a longitudinal groove (23) filled with a finishing casting (4) and a lightening element (5) which is arranged on the upper face (21) of the trimmed joist. The joist is made of brick or mineralised wood; the lightening element is made of brick, polystyrene or other plastic material.
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