Apparatus and method for production of asphalt pavement having h

Details Apparatus and method for production of asphalt pavement having h Apparatus and method for production of asphalt pavement having h

1987-09-15

1989-09-26

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34131, 366235, F26B 1102

Patent

active

048689998

ABSTRACT:
An apparatus and method for manufacture of asphaltic pavement from recycled asphalt pavement (RAP) and virgin rock and asphaltic materials is shown and described. This method utilizes efficient and controlled heat from a recirculating air impingement air dryer for heating of the RAP to a first temperature prior to the RAP being mixed with high temperature rock which is supplied from a rotating drum heater. The mixture of rock and RAP may comprise as much as 80% RAP because the RAP is preheated piror to the RAP rock mixing step.

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