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Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
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Study of Adhesion-Cohesive Interactions of Modified Bitumen Compositions
Antonina Dyuryagina1, Alyona Degert1, Yuliya Byzova1
1Department of Chemistry and Chemical Technology, Manash Kozybayev North Kazakhstan University, Petropavlovsk 150000, Kazakhstan.
Polymers
|January 25, 2025
Summary
This study reveals that specific additives significantly enhance bitumen
Area of Science:
- Materials Science
- Chemical Engineering
- Civil Engineering
Background:
- Bitumen modification is crucial for improving adhesive and cohesive properties in asphalt applications.
- Understanding the influence of additives on bitumen's interaction with mineral fillers is essential for performance optimization.
- Existing research highlights the role of intermolecular forces and wetting phenomena in bitumen-aggregate adhesion.
Purpose of the Study:
- To investigate the impact of additive concentration on the adhesive and cohesive strength of bitumen.
- To evaluate the effectiveness of novel modifiers derived from waste materials in bitumen systems.
- To determine optimal additive concentrations for maximizing adhesion and cohesion with mineral fillers.
Main Methods:
- Utilized methods for determining adhesive efficiency.
- Performed thermodynamic calculations for adhesion and cohesion work.
- Analyzed binary and triple bitumen systems with two grades of mineral fillers.
Main Results:
- Additives significantly improved cohesive strength and adhesive efficiency in binary bitumen compositions.
- Introducing a specific additive (waste sealing liquid) into bitumen with another modifier enhanced adhesion efficiency and thermodynamic work of adhesion.
- Optimal concentrations for maximum adhesion efficiency and thermodynamic work of adhesion were identified as 3.0 g/dm³ and 1.5 g/dm³ for the respective additives.
Conclusions:
- Waste-derived additives can effectively enhance bitumen performance, improving both cohesive strength and adhesive properties.
- The synergistic effect of specific additive combinations leads to superior adhesion with mineral fillers.
- Optimized additive concentrations are critical for achieving maximum improvements in bitumen-aggregate systems for pavement applications.
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