Process for the recovery and reutilization of the used materials in existing asphalt pavements
First Claim
1. A process for the recovery and reutilization of materials in existing asphalt pavements, comprising comminuting existing asphalt pavement, subjecting the comminuted pieces to the action of a solvent in a dissolving zone to separate asphalt from other component materials, recovering solvent and asphalt dissolved therein from said zone separately from said other materials, drying and classifying said other material according to size, separating asphalt from the solvent, and transferring separated asphalt and the size-classified other materials to storage zones for subsequent reuse in the preparation of asphalt pavement.
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Abstract
A process for the recovery and reutilization of materials in existing asphalt pavements includes comminuting existing asphalt pavement, subjecting the comminuted pieces to the action of a solvent is a dissolving zone to separate asphalt from other component materials, recovering solvent and asphalt dissolved therein from such zone separately from the other materials, drying and classifying the other material according to size, separating asphalt from the solvent, and transferring separated asphalt and the size-classified other materials to storage zones for subsequent reuse in the preparation of asphalt pavement.
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Citations
9 Claims
- 1. A process for the recovery and reutilization of materials in existing asphalt pavements, comprising comminuting existing asphalt pavement, subjecting the comminuted pieces to the action of a solvent in a dissolving zone to separate asphalt from other component materials, recovering solvent and asphalt dissolved therein from said zone separately from said other materials, drying and classifying said other material according to size, separating asphalt from the solvent, and transferring separated asphalt and the size-classified other materials to storage zones for subsequent reuse in the preparation of asphalt pavement.
Specification