A body formed of set, initially pasty material and including...

B - Operations – Transporting – 28 – B

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B28B 1/52 (2006.01) C04B 14/48 (2006.01) C04B 28/02 (2006.01) E01C 19/22 (2006.01) E04F 15/12 (2006.01) E04F 21/24 (2006.01)

Patent

CA 2393512

A body (5) of set, initially pasty material, such as concrete, includes an electrically conducting path formed by a concentrated layer (6) of electrically conducting magnetizable elements, such as fibres (F) or granules (G), embedded in the initially pasty material and extending through at least a portion of the body (5). Electrically conducting terminal members (9) may be connected to the electrically conducting layer (6) at spaced-apart positions along the layer (6). A method of providing such a body (5) includes the steps of: (a) forming a body of the pasty material in which electrically conducting magnetizable elements (F) are dispersed, (b) applying a magnetic field to the body of pasty material to form from the magnetizable elements an electrically conducting layer embedded in the body of pasty material and extending at least through a portion the body (5), and (c) causing the body of pasty material containing the layer (6) to set. Before or after the setting of the body (5) of pasty material, electrically conducting terminal members (9), may be connected to the electrically conducting layer (6) at spaced-apart positions along the layer.

Cette invention se rapporte à un bloc (5) de matériau durci, initialement pâteux, tel que du béton, qui contient un canal électroconducteur formé par une couche concentrée (6) d'éléments magnétisables électroconducteurs, tels que des fibres (F) ou des granules (G), incorporés dans le matériau initialement pâteux et traversant au moins une partie du bloc (5). Des bornes électroconductrices (9) peuvent être connectées à la couche électroconductrice (6) dans des positions espacées le long de la couche (6). Un procédé de production de ce bloc (5) consiste: (a) à former un bloc de matériau pâteux, dans lequel sont dispersés des éléments magnétisables électroconducteurs (F), (b) à appliquer un champ magnétique au bloc de matériau pâteux, afin de former à partir de ces éléments magnétisables une couche électroconductrice incorporée dans le bloc de matériau pâteux et traversant au moins une partie du bloc (5), et (c) à laisser durcir le bloc de matériau pâteux contenant la couche (6). Avant ou après le durcissement du bloc (5) de matériau pâteux, des bornes électroconductrices (9) peuvent être connectées à la couche électroconductrice (6) dans des positions espacées le long de ladite couche.

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