Bitumen and filled resin emulsion for road surfacing emulsion
AssigneeColas
InventorsGraziella Durand, Eric Godard, Jean-François Gal
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Abstract
The invention consists of a bitumen/resin composite emulsion for a road surface protection layer against the attacks of petroleum derivates, realised by mixing a first emulsion comprising at least one resin with a second emulsion comprising a bituminous binder and a resin crosslinking agent. A pigmentary preparation and/or a load made of a filler or sand or a fine sand or their combinations, can be incorporated to the first emulsion, the second emulsion or into the composite emulsion resulting from the mixture of both emulsions. The loaded composite emulsion enables the realisation of thin film-type surface coatings made of one or several layers.
Claims16
A bitumen/resin composite emulsion for a road surface layer to protect the layer against attacks from petroleum derivatives, wherein the composite emulsion is produced by mixing a first emulsion comprising at least one resin with a second emulsion comprising bituminous binder and resin crosslinking agent to form the bitumen/resin composite emulsion, the bitumen/resin composite emulsion further comprising a filling agent selected from filler, sand, fine sand, or mixtures thereof, wherein the filling agent is defined by standard XP P 18-540.
A bitumen/resin composite emulsion for a road surface layer to protect the layer against attacks by petroleum derivatives,
- the bitumen/resin emulsion being produced by mixing a first emulsion comprising at least one resin with a second emulsion comprising bituminous binder and resin crosslinking agent to form the bitumen/resin composite emulsion,
- the bitumen/resin composite emulsion further comprising a filling agent and pigmentary preparation,
- the filling agent being selected from filler, sand, fine sand, or mixtures thereof,
- the filling agent being defined by standard XP P 18-540,
- the filling agent ranging from 25 to 50% by-weight of the bitumen/resin composite emulsion,
- the filling agent being siliceous,
- the ratio of the pigmentary preparation ranging from 0.05 to 2% by weight, the percentage weight being calculated with respect to the weight of bitumen/resin composite emulsion and the weight of the filling agent,
- the at least one resin in the resin-containing emulsion being from 50 to 80% by weight of the resin-containing emulsion, and
- the at least one resin comprising an epoxy type resin selected from liquid epoxy resins or emulsified solid epoxy resins.
Dependencies are inferred from the claim text.