AGE BITUMEN REJUVENATION INCORPORATING REJUVENATORS

Effect of incorporating different waste materials in bitumen

The increasing environmental concern about waste materials and the necessity of improving the performance of asphalt mixtures prompted the study of incorporating different waste materials in conventional bitumen. The reuse of waste materials can present benefits at an environmental and economic level, and some wastes can be used to improve the pavement performance. Thus, the purpose of this stu...

Incorporating facial rejuvenation procedures in the dental practice.

Recognizing that the tide was changing in dentistry, my wife Janet — also a dentist — and I decided to include facial rejuvenation procedures into our practice’s “smile design” treatment. Our most exciting adventure to date has been the opening of a dental and facial rejuvenation/esthetic dentistry center, appropriately named, “A Smile Above.” We are enjoying the practice of dentistry more toda...

Herbal Antioxidants as Rejuvenators in Alternative Medicine

The Human Bitumen Study

Recently, the Human Bitumen Study has been finished (Schlüter, 2011). Including 500 workers from more than 80 construction sites it represents the world-wide largest study on adverse health effects caused by bitumen. The study answers a question that has been controversially discussed since decades: Bitumen exposed workers do not show higher levels of DNA damage than unexposed individuals. On t...

Cooee bitumen: chemical aging.

We study chemical aging in "Cooee bitumen" using molecular dynamic simulations. This model bitumen is composed of four realistic molecule types: saturated hydrocarbon, resinous oil, resin, and asphaltene. The aging reaction is modelled by the chemical reaction: "2 resins → 1 asphaltene." Molecular dynamic simulations of four bitumen compositions, obtained by a repeated application of the aging ...