Method and device for fabricating hollow bodies made of continuous fibre-reinforced concrete, and products obtained thereby

Abstract

Abstract Translated from French On fait passer des fibres continues dans un lait de ciment et on les enroule, sous tension, en au moins une couche sur une couche préalablement projetée sur un mandrin, constituée par un mélange de ciment et de fibres courtes. Ensuite, on prévoit un temps de séchage adéquat du corps creux obtenu. Le dispositif comporte trois cuves (3, 4, 5) qui sont déplaçables selon une direction parallèle à l'axe du mandrin rotatif (1) et un bras basculant (8) muni d'un dispositif de projection (10) du mélange fibres courtes - ciment ainsi que d'un moyen d'application (12) des fibres continues sous tension. Continuous fibers are passed through a milk of cement and they are wound, under tension, in at least one layer on a layer previously projected on a mandrel, constituted by a mixture of cement and short fibers. Next, an adequate drying time of the hollow body obtained is provided. The device comprises three tanks (3, 4, 5) which can be moved in a direction parallel to the axis of the rotary mandrel (1) and a tilting arm (8) provided with a device (10) for projecting the short fiber mixture - cement as well as a means of application (12) of continuous fibers under tension.

Inventors

• 👤 Alexandre Graevenitz

Bibliographic Details