PROCESS FOR HEATING AN ASPHALT SURFACE AND APPARATUS THEREFOR

摘要

A process for heating an asphalt surface and an apparatus therefor. The process comprises the steps of: igniting in a burner a combustible mixture comprised of a fuel and oxygen to produce a hot gas; and feeding the hot gas to an enclosure having a radiative face disposed above the asphalt surface. The asphalt surface heating apparatus comprises a hot gas producing burner and an enclosure comprising an inlet for receiving hot gas from the burner and a radiative face having a plurality of apertures. The apertures in the radiative face are of a dimension such that the hot gas: (i) heats the radiative face to provide radiation heat transfer to the asphalt surface; and (ii) passes through the apertures to provide convection heat transfer to the asphalt surface.