Abstract
The Gulf Countries' environmental conditions are very severe. The temperature zoning study indicate that more than half of Gulf areas experience a maximum seven consecutive days pavement temperature of 76°C (Al-Abdul Wahhab et al., 1997). This has resulted in damage to the road networks in the form of cracking, rutting and deformation. Polymer modification of asphalt is required to increase the resistance to permanent deformation at relatively high temperatures without adversely affecting the properties of the asphalts at low temperature. In this work chemical and performance-related properties of fresh, oxidized, and polymer modified asphalts were evaluated. The physical properties and performance characteristics of asphalts were found to depend on the chemical composition of asphalt. The interactions of polar functionalities actually present or formed during oxidative aging or due to polymer modification, influence the viscosity and related flow properties. The changes in composition of fresh, oxidized and polymer-modified asphalts can be clearly identified from Infrared spectroscopy. NMR spectroscopy enables detailed information about the Carbon-and-hydrogen-types and average molecular/structural parameters of asphalt without separating it into different components.
| Original language | English |
|---|---|
| Pages (from-to) | 1229-1249 |
| Number of pages | 21 |
| Journal | Petroleum Science and Technology |
| Volume | 19 |
| Issue number | 9-10 |
| DOIs | |
| State | Published - Oct 2001 |
Bibliographical note
Funding Information:The work was supported by King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia, under Project Grant LG-2-61. The authors acknowledge the facility support from King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, for this work.
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Fuel Technology
- Energy Engineering and Power Technology
- Geotechnical Engineering and Engineering Geology
