摘要:
Le pré-mur pour la construction d'un bâtiment comprend un panneau en béton (1) muni d'un bord inférieur (3) et d'un bord supérieur (2). Ce panneau en béton (1) comporte au moins un élément en saillie (8) en béton agencé au niveau d'une face avant (6) du panneau en béton (1) et s'étendant entre le bord inférieur (3) et le bord supérieur (2). Par ailleurs, le pré-mur comporte : - une cavité (9) formée au niveau dudit au moins un élément en saillie (8), ladite cavité (9) présentant une ouverture inférieure (10) débouchant au niveau du bord inférieur (3), une ouverture supérieure (11) débouchant au niveau du bord supérieur (2), et étant fermée entre l'ouverture inférieure (10) et l'ouverture supérieure (11), - un élément en matériau isolant (16) solidaire de ladite face avant (6) du panneau en béton (1).
摘要:
A glazed cement product and method for manufacturing thereof wherein the glazed cement product comprizes a foam light-weight aggregate, reinforcing steel under pretension or stress-absorbing layer around the reinforcing steel; an action of generating crack caused by a difference of coefficient of thermal expansion between the reinforcing steel and a portion of cement material while burning and cooling are carried out is absorbed by the foam light-weight aggregate, the stress-absorbing layer or pretension given to the reinforcing steel; a reaction of unreacted cement component is promoted by the hydration to harden for recovering mechanical strength.
摘要:
éthode selon laquelle on utilise des écrans de têtes mobiles et autoportants (Et) pour la fermeture des moules (m) aux deux extrémités et pour l'ancrage des armatures (a); on réalise le démoulage des produits avec transfert des efforts de précontrainte aux écrans de tête, puis lorsque le béton a acquis une résistance supplémentaire par rapport à celle existant au moment du démoulage, on réalise le transfert des efforts de précontrainte au béton par adhérence et on récupère les écrans autoportants (Et).
摘要:
An additive manufacturing process for the manufacture of a body from composite materials, including the steps of: providing a support structure against which the composite material is to be formed; installing a reinforcing material adjacent the support structure; and progressively applying a matrix material to the support structure to cover the reinforcing material, the matrix material being applied from a nozzle movable relative to the support structure.
摘要:
This invention relates to prestressed concrete units, to a method of manufacture of prestressed concrete units and to a mould system for use in such a method. The invention provides a method of manufacturing a prestressed concrete unit using a mould system comprising an elongate mould containing at least one prestressed element and an elongate hopper having an aperture, comprising the steps of locating at least one reinforcing element in a substantially perpendicular orientation to said mould; filling the elongate mould with concrete to form a first portion of the unit; locating the hopper over said reinforcing element in a substantially perpendicular orientation with the mould; and filling the hopper with concrete such that the concrete flows through the aperture to contact the concrete of the first portion.
摘要:
A method and assembly (20) to form a cast concrete panel (21). The assembly (20) has end beams between which tendons (23) can pass. The beams need to be able to support tensioning of the tendons. Transversely extending form members (25) cooperate with form members (27) to enclose a space to receive concrete to form the panel (21). The tendons (23) pass through the space.
摘要:
A glazed cement product and method for manufacturing thereof wherein the glazed cement product comprizes a foam light-weight aggregate, reinforcing steel under pretension or stress-absorbing layer around the reinforcing steel; an action of generating crack caused by a difference of coefficient of thermal expansion between the reinforcing steel and a portion of cement material while burning and cooling are carried out is absorbed by the foam light-weight aggregate, the stress-absorbing layer or pretension given to the reinforcing steel; a reaction of unreacted cement component is promoted by the hydration to harden for recovering mechanical strength.