Road surface repair compositions, processes and applicator apparatuses
AssigneeMeadWestvaco Corporation
InventorsMelvin D. Brasier, Thomas W. Seaberg
Life of this patent
Estimating the term…
Abstract
An asphalt composition, process, and apparatus for repairing cracks and other distressed areas in road surfaces. The asphalt composition comprises an aggregate material and a cold pour asphalt emulsion, preferably a quickset cationic asphalt emulsion. The aggregate material will preferably be a graded aggregate material. The asphalt emulsion and the aggregate material will preferably be mixed together and then delivered into the distressed area in not more than 20 seconds. A small mixing assembly is preferably held in suspension over the road surface for continuously receiving and mixing the asphalt emulsion and aggregate components and delivering the mixture into the distress area.
Claims17
A method of repairing each of a plurality of damaged areas in a road surface comprising the steps of:
- (a) moving a mixing and application apparatus to one of said damaged areas;
- (b) delivering a flow of an aggregate material into a mixing chamber of said mixing and application apparatus, said mixing and application apparatus also comprising a mixing element positioned within said mixing chamber and a discharge opening in said mixing chamber;
- (c) simultaneously with step (b), delivering a stream of a cold pour asphalt emulsion into said mixing chamber of said mixing and application apparatus;
- (d) simultaneously as said cold pour asphalt emulsion and said aggregate material are delivered into said mixing chamber of said mixing and application apparatus in steps (b) and (c), mixing together in said mixing chamber said cold pour asphalt emulsion and said aggregate material to form in said mixing chamber a composition such that said aggregate material is present in said composition in an amount of at least 30% by weight of a total weight of said composition;
- (e) simultaneously with steps (b), (c), and (d), delivering a flow of said composition out of said discharge opening in said mixing chamber directly into said one of said damaged areas;
- and
- (f) moving said mixing and application apparatus to each subsequent one of said damaged areas and repeating steps (b), (c), (d), and (e) for each said subsequent one of said damaged areas.
Dependencies are inferred from the claim text.