| 摘要 |
A method of bonding together a polymer and bitumen comprises the steps of functionalising the surface of each material and bonding the modified materials with a crosslinking agent. The modification of the polymer and bitumen is preferably performed by treating the respective materials with an oxidising solution, such as chromic acid comprising potassium dichromate, water, and sulphuric acid. The polymer may be in the form of strips derived from a recycled plastics or rubber material. A particulate material is also disclosed, wherein the material comprises modified polymer particles bonded to modified bitumen with a crosslinking agent. The resulting product may be mixed with aggregates, such as gravel, cement, or pulverised fuel ash. The particulate material is stated to be used as chippings or for surface dressing, wherein the surface is a road, airfield, or pavement.
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