| 摘要 |
The method implements block-type press moulds (1) each enclosing a polystyrene component (2) of inverted T-shaped cross-section, the perimeter of the rectangular base (21) of which is equal to that delimited by the internal edges of the vertical walls of the said moulds (1), the base (21) of the inverted T resting on the board (3) which constitutes the bottom of the moulds (1), and its central branch (20) dividing each mould (1) into two compartments, the shape of which is given by the cutout made in the walls of the branches of the said piece (2), and into which the concrete is poured and pressed by a ram (4). <IMAGE>
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