UTILIZATION OF THE WASTE SEALING LIQUID COMPONENT IN ASPHALT CONCRETE PAVEMENTS

Abstract

The relevance of this research is dictated by the need for solutions in the field of recycling various industrial wastes in order to use them as part of a new product. The object of research is the spent sealant AG-4I, which is used in large volumes at energy facilities, oil and gas production enterprises, machine-building plants, municipal utilities and other industries in heating systems. Recycling saves natural resources, reduces solid waste, air and water pollution, and harmful emissions to the atmosphere. The road construction industry can use recycled materials as part of asphalt pavements. Modification of asphalt concrete mixes with industrial waste is a priority in order to reduce the huge amount of waste generated from various sources. The aim of this work was to study the possibility of recycling the spent sealing liquid AG-4I as part of asphalt concrete compositions for modification. Methods: rheological methods, structural and mechanical methods for evaluating the quality of films and coatings. Results. The authors have determined the physicochemical and rheological characteristics of the spent sealing liquid in the bitumen compositions. As a result of the research, it was found that the preservation of the test sealing liquid in the preferred solid form is impossible, since attempts to polymerize polyisobutylene in the composition of the sealing liquid waste did not lead to changes in the composition. It is established that the test sealing liquid introduction into asphalt concrete compositions allows it to be used as a stabilizing and hydrophobizing additive. As a result, the adhesion to mineral fillers and the strength of coatings are improved.

Keywords

• waste utilization
• sealing liquid
• recycling
• asphalt concrete mix
• bitumen