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Pavements 2025

Asphalt Binder and Mixture Characterization

POSTER RECEPTION (View list of posters here)

Investigation of Basic Test Results for SN2O-Modified Bitumen: Enhancing Pavement Performance

Tuesday, June 10, 2025
4:45 PM – 6:00 PM MT
Abstract: This study investigates the effects of adding (SN2O) to bitumen, a widely used binder in pavement construction, to improve its mechanical properties and overall performance. The modification of bitumen with additives has been an area of significant interest in asphalt technology, as it offers potential benefits in terms of durability, temperature resistance, and resistance to aging. In this research, basic bitumen tests, including penetration, softening point, ductility, and viscosity, were conducted to assess the impact of SN2O modification on the physical properties of bitumen.

The experimental results demonstrate that the addition of SN2O alters the bitumen’s consistency, resulting in a higher softening point and reduced penetration values, which indicate improved resistance to deformation at elevated temperatures. The viscosity measurements show an increase, suggesting that the modified bitumen exhibits enhanced stiffness. Additionally, ductility tests reveal that the SN2O-modified bitumen maintains adequate flexibility while offering increased resistance to cracking under low temperatures.

These findings suggest that SN2O modification of bitumen can enhance its performance characteristics, making it more suitable for a wide range of climatic conditions and traffic loads. The study concludes that SN2O-modified bitumen can improve the longevity and resilience of pavements, offering significant advantages in infrastructure projects that require materials with superior thermal and mechanical properties.

Learning Objectives:

Attendees can expect to learn the following from this session:
  • Upon completion, participants will be able to explain the effects of SN2O modification on the physical properties of bitumen based on standard test results.
  • Upon completion, participants will be able to conduct basic bitumen tests such as penetration, softening point, viscosity, and ductility to evaluate the impact of additives.
  • Upon completion, participants will be able to analyze the benefits of using SN2O-modified bitumen in pavement applications, particularly in terms of temperature resistance and durability.