Method for preparing and storing a recyclable shingle material
AssigneeAstec Industries, Inc.
InventorJ. Don Brock
Life of this patent
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Abstract
A method for treating asphalt roofing shingles to be used for recycling in an asphalt plant which mixes asphalt roofing shingles with between about 15% and 50% by weight of a carrier aggregate. The aggregate is fed into a shredder with the shingles or is otherwise mixed with the comminuted shingles to form a recyclable asphaltic material which may be easily stored and transported, and which may also be used in the preparation of asphalt paving composition.
Claims10
A method for preparing a recyclable asphaltic material, comprising the steps of:
- comminuting roofing shingles to particles of a size which can be accurately flowed and metered;
- preventing said shingle particles from significantly sticking together by mixing said particles with a carrier aggregate at a temperature below the melting point of asphalt;
- and
- maintaining said mixture at a temperature below the melting point of asphalt for a period of storage.
A method for preparing and storing a recyclable asphaltic shingle material, comprising the steps of:
- comminuting roofing shingles at ambient temperature to particles which can be accurately flowed and metered;
- mixing said shingle particles with a carrier aggregate at ambient temperature to form a mixture in which said shingle particles resist adhering to one another, and
- maintaining said mixture at ambient temperature in a flowable state for a period of storage.
A method for preparing and storing a recyclable asphaltic shingle material, comprising the steps of:
- comminuting roofing shingles to particles which can be accurately flowed and metered;
- screening said shingle particles into a mixer;
- mixing said shingle particles with a carrier aggregate in said mixer at a temperature below the melting point of asphalt to form a mixture in which said shingle particle resist adhering to one another;
- and
- maintaining said mixture at a temperature below the melting point of asphalt in a flowable state for a period of storage.
Dependencies are inferred from the claim text.