E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
E04B 1/68 (2006.01)
Patent
CA 2172533
The invention relates to an injection tube for construction joints on concrete buildings, having a basic body which is ess- entially impermeable to liquid, consists of flexible material, such as rubber or plastic, surrounds a passage channel and is fitted, in its outer casing surface, with at least one groove- like depression extending over the length of the basic body, opening out into which depression are radial openings, distribu- ted over its length, for the outlet of injection liquid from the passage channel, and in which depression a strip is received, which strip covers the openings and is made of a material which is compressible under the internal pressure of the injection liquid, and having a covering which is permeable to liquid and encloses the basic body and the strip in the manner of a tube, a single depression either helically encircling the outer casing surface of the basic body with a predetermined pitch or running axially parallel to the passage channel, but having an opening width of more than 90°.
Un tuyau flexible d'injection (1) pour joints de constructions en béton comprend un corps de base (2) constitué essentiellement d'un matériau souple imperméable aux liquides, tel que le caoutchouc ou une matière plastique, qui entoure un canal de passage (3). Le corps de base (2) est pourvu, sur son enveloppe extérieure (4), d'au moins une dépression (5) en forme de rainure qui s'étend sur toute sa longueur. Des ouvertures radiales (6) de sortie du liquide injecté à travers le canal de passage (3) sont réparties sur toute la longueur de cette dépression (5). Une bande de matériau pouvant se comprimer sous la pression interne du liquide injecté est située dans la dépression (5) et recouvre les ouvertures (6). Une gaine (8) perméable aux liquides entoure, à la manière d'un tuyau, le corps de base (2) et la bande. Une seule dépression (5) s'étend en spirale autour de l'enveloppe extérieure (4) du corps de base (2), avec un pas prédéterminé, ou s'étend parallèlement à l'axe du canal de passage (3), mais a un angle d'ouverture supérieur à 90 DEG .
Koob Kunibert
Bbz Injektions- Und Abdichtungstechnik Gmbh
Fetherstonhaugh & Co.
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