Abstract: Portable-to-site apparatus is operative to produce ready-to-lay traffic-wear surfacing and/or road etc course materials. A drum-like container is supported for axial rotation within insulation walling of a heating chamber allowing front access to one end closure of the rotatable container and affording operative association with heating means for raising temperature of contents of the container by heat transfer through side walling of the container. Normal operation is with the container sealed and under appropriate control as to time, heating, even rotation. The container is frame-mounted for tilting to aid loading and/or unloading.