الفهرس 
LITERATURE REVIEWOnly 14 pages are availabe for public view
 |  | from | 244 |  |  |
| | | from | 244 | | |
Abstract
One of the main reasons of structural failure of pavement layers in hot
climate countries, among which is Egypt. are creep and rutting. Creep is a
form of a plastic movement in the pavement surface, while rutting is
channalized depression develops under the wheel tracks of asphalt pavement
layers.
These sons of plastic deformations are referred primarily to the loss of the
cohesive effect of asphaltic cement as it becomes more and more viscous
under the effect of temperature. Many new pavement technologies had been
introduced in an attempt to improve the resistance to these types of
pavement deformations. Among these technologies is the use of mixes in
which the contribution of asphalt cement cohesion in the mix strength is
lowered while interlocking and friction between the aggregate particles arc
given the important role in the mix strcngth. One of these mixes is the Stone
Matrix Asphalt (SMA).
Stone Matrix Asphalt has been used successfully as a surface-wearing
course in Europe for the last twenty years, and with promising success in
USA (3). Besides being resistant to permanent deformation, SMA shows
potential for improving long term performance and durability.
The success of SMA abroad had encouraged researchers to study the
potential of its use in Egypt. However this methodology needs to be
evaluated using local materials in Egypt to ensure satisfactory performance as proved abroad.