Ali Akbar Yousefi

Title: Innovations of Ali Akbar Yousefi

Introduction

Ali Akbar Yousefi is a notable inventor based in Tehran, Iran. He has made significant contributions to the field of paving compositions, particularly focusing on improving their properties at varying temperatures. His innovative approach has led to the development of a unique paving composition that enhances performance and stability.

Latest Patents

Yousefi holds a patent for "Stable paving compositions having improved low and high temperature properties." This invention comprises a mixture of about 90 to 99.5 wt. % of an asphaltic material and about 0.5 to 10 wt. % of solid particles, each encapsulated with a cross-linked polymer. The encapsulated particles are uniformly dispersed in the asphaltic material, providing a density match that enhances the paving composition's performance. The invention demonstrates a higher complex viscosity at high temperatures (60°C) and improved ductility at low temperatures (-15°C) compared to the base asphaltic material. Additionally, the composition remains stable at elevated temperatures (160°C) and during prolonged storage.

Career Highlights

Yousefi is affiliated with Université Laval, located in the Cité Universitaire. His work at this institution has allowed him to further his research and development in innovative paving solutions. His dedication to improving material properties has positioned him as a key figure in his field.

Collaborations

Yousefi collaborates with Abdellatif Ait-Kadi, contributing to advancements in paving technology and materials science. Their partnership has fostered a productive environment for innovation and research.

Conclusion

Ali Akbar Yousefi's contributions to paving compositions highlight his innovative spirit and commitment to enhancing material performance. His patent reflects a significant advancement in the field, showcasing the potential for improved infrastructure solutions.