Crack anti-rise system inserted between the structural layer and the road carpet of a carriageway and process for producing such a system
AssigneeKoch Materials Company
InventorsPierre Chaverot, Emile Lopez
Life of this patent
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Abstract
A rising crack prevention system between the structural and wearing courses of a roadway is provided which includes a geotextile layer impregnated with a first asphalt binder, and further includes a layer of roadstones coated with a second asphalt binder adjacent to the geotextile layer impregnated with the first asphalt binder. The unique double-layer construction of the rising crack prevention system is efficient in preventing or at least greatly slowing down the spread of cracks from the structural course to the wearing course of the road.
Claims28
Crack anti-rise system inserted between the structural layer and the road carpet of a carriageway, of the type containing a layer of a geotextile impregnated with a first bituminous binder, which it also includes a layer of aggregates coated with a second bituminous binder, which is joined to the layer of geotextile impregnated with the first bituminous binder wherein between the structural layer and the road carpet of the carriageway, the layer of aggregates coated with the second bituminous binder lies on the structural layer of the carriageway, and whereas the layer of geotextile coated with the first bituminous binder is covered by the road carpet.
Process for the production of a crack anti-rise system, inserted between the structural layer and the road carpet of a carriageway, the said system containing a layer of a geotextile impregnated with a first bituminous binder and joined to a layer of aggregates coated with a second bituminous binder, said process being characterized in that one of the layers of the crack anti-rise system is applied to the structural layer of the carriageway, the layer thus formed is then covered using the other layer of the crack anti-rise system and the road carpet is applied to the construction thus formed and first of all applying the layer of geotextile impregnated with the first bitumious binder to the structural layer of the carriageway, then covering said geotextile layer with the layer of aggregates coated with the second bitumious binder, and applying the road carpet of the carriageway to the last layer.
Dependencies are inferred from the claim text.