Dyuryagina Antonina, Degert Alyona, Byzova Yuliya, Ostrovnoy Kirill, Demyanenko Alexandr, Lutsenko Aida, Shirina Tatyana
Department of Chemistry and Chemical Technology, Manash Kozybayev North Kazakhstan University, Petropavlovsk 150000, Kazakhstan.
Polymers (Basel). 2025 Jan 14;17(2):199. doi: 10.3390/polym17020199.
The aim of the work was to study the effect of additive concentration on changes in the adhesive and cohesive strength of bitumen. To evaluate the effectiveness of modifiers in the composition of binary and triple bitumen systems in relation to mineral fillers of two grades, the method of determination of the adhesive efficiency and thermodynamic calculations of adhesion and cohesion work were used. The following compounds were used as additives: synthesized from the oil refining waste and (waste sealing liquid). Adhesion-cohesion processes in modified bitumen systems are limited by the wetting effect of crushed stone and the intensity of intermolecular forces in the condensed phase of the binder. In the binary compositions, the addition of modifiers into bitumen significantly improves the cohesive strength and adhesive efficiency in relation to crushed stone. The introduction of into bitumen compositions with increases adhesion efficiency and thermodynamic work of adhesion in relation to the filler surface. The adhesion efficiency and thermodynamic work of adhesion in the "bitumen--" system reach their maximum at = 3.0 g/dm and = 1.5 g/dm. In these concentration modes, the composition ensures maximum increase in adhesion efficiency ( = 65.18%; = 48.11%) and the greatest increase in thermodynamic work of adhesion ( = 15.79 mN/m; = 14.13 mN/m).
这项工作的目的是研究添加剂浓度对沥青粘结强度和内聚强度变化的影响。为了评估二元和三元沥青体系中改性剂相对于两种等级矿物填料的有效性,采用了测定粘结效率的方法以及粘结和内聚功的热力学计算方法。以下化合物用作添加剂:由炼油废料合成的以及(废密封液)。改性沥青体系中的粘结 - 内聚过程受碎石的润湿作用和粘结剂凝聚相中分子间力强度的限制。在二元组合物中,向沥青中添加改性剂可显著提高相对于碎石的内聚强度和粘结效率。在含有 的沥青组合物中引入 可提高相对于填料表面的粘结效率和粘结热力学功。“沥青 - - ”体系中的粘结效率和粘结热力学功在 = 3.0 g/dm 和 = 1.5 g/dm 时达到最大值。在这些浓度模式下,该组合物可确保粘结效率最大提高( = 65.18%; = 48.11%)以及粘结热力学功最大增加( = 15.79 mN/m; = 14.13 mN/m)。