Mixing and Laying Trials of Bituminous Materials Produced by the Wibau-SL Process

摘要

The Wibau-SL process was developed as a means of producing bituminous materials more economically than by conventional processes; this is achieved because the process does not require elaborate dust-suppression equipment and, as a consequence, operating costs are lower. This report describes mixing and laying trials of bituminous materials produced by the Wibau-SL process. The aggregates used in the trials included limestone, basalts, gravels, slag and natural sands and the binders were petroleum bitumens and pitch-bitumens of penetration grades. The materials successfully produced included rolled asphalt wearing courses and basecourses, dense roadbase and wearing course macadams, open-textured macadams and fine cold asphalt. (Copyright (c) Crown Copyright 1979.)