Multiple layer composite material consisting of cement-based...

Details Multiple layer composite material consisting of cement-based... Multiple layer composite material consisting of cement-based...

C - Chemistry, Metallurgy

04

B

C04B 40/06 (2006.01) C04B 26/02 (2006.01) C04B 41/48 (2006.01) C04B 41/63 (2006.01) E01C 5/06 (2006.01) E04C 2/04 (2006.01)

Patent

CA 2388193

The invention relates to a multiple layer composite material and to a method for producing the same. Said multiple layer composite material has at least one layer consisting of cement-bound concrete and at least one layer consisting of polymer-bound concrete. The transition area between adjacent layers of cement-bound concrete and polymer-bound concrete has at least the material strength of the less stable of the concrete layers adjoining the transition area. The layer consisting of polymer-bound concrete allows the diffusion of water vapour but cannot be penetrated by liquid water. The multiple layer composite material can be produced completely in an aqueous system.

L'invention concerne un matériau composite multicouche et son procédé de production. Le matériau composite multicouche présente au moins une couche de béton-ciment et au mois une couche de béton-polymère. La transition entre des couches adjacentes de béton-ciment et de béton-polymère possède au moins la résistance de matériau des couches béton adjacentes à la transition qui sont moins stables. La couche de béton-polymère autorise la diffusion de vapeur d'eau mais pas la pénétration d'eau à l'état liquide. Le matériau composite multicouche peut être entièrement réalisé dans un système aqueux.

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