Road builders often dump hardened asphalt concrete residues directly onto the ground near the repair zone. Such careless accumulation of solidified bituminous mass by contractors destroys the ecosystem and creates a fire hazard. The loss of the material's binding properties occurs due to prolonged overheating or long-term storage of the mixture in open dump trucks without thermal insulation tarps.
Oxidation of BND 60/90 grade petroleum bitumen provokes its rapid crumbling, turning a valuable construction resource into hazardous industrial waste. Hot recycling completely solves the problem. Mobile recyclers make it possible to reheat the milled asphalt pavement directly on-site and melt the condensed residues at a temperature of 160 degrees. Ecological management of such materials involves their strict accounting, separate sorting by fractions, and subsequent safe processing.
Thermal regeneration of asphalt concrete at a temperature of 160 °C
The composition of standard asphalt concrete includes crushed stone, sand, mineral powder, and petroleum bitumen. During aging, light oil fractions evaporate and leave behind a brittle resinous substance. To restore plasticity, special rejuvenating oils are added to the heated mass to compensate for the loss of light hydrocarbons during prolonged operation. Can such equipment operate at sub-zero temperatures directly in winter?
Application of rejuvenators in mobile mixers
Road construction practice shows the impossibility of complete, high-quality processing of mixtures with a high content of clay impurities or foreign construction waste. German asphalt mixers quickly clog with sludge. After screening on vibrating screens, the prepared material enters the drum, where it is gradually mixed with an additional organic binding element. The resulting recycled asphalt concrete is laid on secondary road sections, parking lots, or used as the lower layer of the road pavement. The technology significantly reduces the use of primary petroleum raw materials at construction sites.
NPV codes 17 03 01* and 17 03 02 in waste logistics
Correct waste classification determines the subsequent route of their safe transportation. Residues containing coal tar belong to code 17 03 01* as a hazardous substance.
Conventional bitumen mixtures without toxic impurities are coded under cipher 17 03 02, which requires separate accumulation on site. Accumulation sites are equipped with a concrete base with a protective curb to prevent the spilling of liquid bitumens during summer heat. Contaminated soil is collected by special excavators. The licensed company UtilVtorProm carries out the removal of such residues by specialized vehicles, ensuring their full support in accordance with environmental standards. Mixing different types of resins or bitumens is strictly prohibited by current construction standards. Thermal processing of hazardous fractions is carried out at specialized high-temperature processing plants.
The organization of work should begin with a laboratory analysis of bitumen material residues. The laboratory will accurately determine the presence of toxic impurities and coal tars. After receiving the official conclusion, the site manager can easily form the correct technological regulations for the subsequent collection and temporary storage of raw materials. Such a systematic approach completely eliminates penalties from environmental inspections. Ordering construction waste management services from UtilVtorProm guarantees prompt removal of materials in compliance with all necessary environmental requirements.