Thin, stratified, reinforced slab and method for the...

Details Thin, stratified, reinforced slab and method for the... Thin, stratified, reinforced slab and method for the...

E - Fixed Constructions

04

C

E04C 2/22 (2006.01) B29C 67/24 (2006.01) B32B 27/12 (2006.01) B44F 9/04 (2006.01)

Patent

CA 2531315

Between two layers (10, 12) of BretonstoneTM mix - formed by inert materials (11), a hardening resin and a filler (13) - at least one fibrous middle layer (14) is arranged which consists of linear elements or inorganic filaments (15), preferably made of glass and in the form of continuous non-woven elements, pre-impregnated with a resin of the same kind as, or compatible with that forming the said mix. The assembly is subjected to vacuum vibro- compression before a final hardening step in a catalysis oven. USE/ADVANTAGES : a stratified and reinforced slab is obtained which combines a reduced thickness (even as small as 3.5 mm) to a very high impact strength and improved mechanical properties.

Entre deux couches (10, 12) de mélange de type Bretonstone<SP>TM</SP> fait de matériaux inertes (11), d'une résine polymérisable, et d'une matière de charge (13), on a disposé au moins une couche intermédiaire fibreuse (14). Cette couche, qui est constituée d'éléments linéaires ou de filaments inorganiques (15), de préférence du verre sous la forme d'éléments continus non-tissés, est imprégnée d'une résine de la même sorte que celle utilisée pour le mélange, ou compatible avec elle. Avant un durcissage final dans un four de catalyse, l'ensemble subit une vibro-compression sous vide. L'avantage à l'utilisation en est que cette dalle, stratifiée et renforcée, associé à une épaisseur réduite (de l'ordre de 3,5 mm), une résistance élevée au choc, et des propriétés mécaniques améliorées.

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