Аннотация: Для получения полимерно-битумных вяжущих (ПБВ) используют процессы смешения различных модификаторов с нефтяными битумами в целях придания вяжущему более высоких качественных показателей по сравнению с исходным материалом.Проблема поиска составов модификаторов, обеспечивающих полный спектр требуемых показателей дорожных вяжущих, остается актуальной.Рассмотрены особенности использования для модифицирования битумов смешанного типа модификаторов на основе термоэластопластов и термопластов.Исследованы отклики в виде изменений показателей качества вяжущего при смешении битумов с

The relevant task in the field of road construction and maintenance is gradual transition to the production of asphalt-concrete mixtures on polymer-bitumen binders. Most asphalt-concrete plants of small and medium capacity consider this transition as challenging due to a relatively high cost of the specialized equipment for polymer-bitumen binders production. Most proposed techniques involve the utilization of colloid mills. The practice of such mills operation shows that production lines experience long downtime periods due to the necessity of preventive maintenance and repair. A promising direction in polymer-bitumen binders manufacture is to use polymer waste materials for the bitumen modification. This provides the reduction of the modified binder costs and the solution of environmental problems. The paper deals with the problem of asphalt-concrete plants modernization to obtain polymer-bitumen binders in its own production using agitated mixers common in the chemical industry. Optimization problem is formulated for design and operating parameters of such equipment to provide required quality indicators for the resulting polymer-bitumen binders. Algorithmic and software assistance is developed to solve the set problem. The proposed technical solutions were tested when solving the modernization problems regarding the process diagram of the asphalt-concrete plant to release products on polymer-bitumen binder of its own production.

The IR-spectral analysis of polymer composites based on epoxy resin and nanoscale water dispersion of a copolymer of styrene and acrylic acid was carried

We conducted studies on modification of petroleum bitumen with polymeric materials to improve the quality indicators of the produced road binder.Polyethylene waste and DST 30-01 thermoplastic elastomer were used as polymer materials.To improve the adhesive properties of the resulting polymer-bitumen binder with mineral fillers we used adhesive additive "Amdor-10".The composition of the complex modifier for petroleum bitumen contained thermoplastic elastomer, waste polyethylene and surfactant additive adhesive.We measured physical and mechanical properties of asphalt mixture produced using polymer bitumen-based complex modifier.It was found that adding of polymer-bitumen binder to the resulting asphalt concrete improves its physical and mechanical characteristics.The use of thermoplastic waste reduces cost of polymer-bitumen binder in comparison with its analogues.