Experience in the installation of coatings of warm asphalt mixes in the first road-climate zone

This article describes in detail the technology of production of low-temperature mixes (warm asphalt-concrete mixes) of type A, B and C using viscous bitumen and the method of its foaming, as well as the construction of road coatings from them in the first road-climatic zone and the results of laboratory studies of mixtures. A schematic diagram of the operation of the foaming equipment for the production of warm asphalt concrete mixes and the principle of its operation are given. The expediency of foaming viscous oil road bitumen was substantiated and confirmed by spraying an asphalt mixing plant in a mixer with a specified amount of water through the nozzles of the dispenser-dispenser of DRV-001 water. This technology is especially relevant for regions with a short duration of the construction season. (paper)