تعديل الخلائط البيتومينية الاسفلتية المستخدمة في محافظة اللاذقية بالمطاط المدور من اطارات السيارات

The aim of this research to study the possibility of modification of asphalt mixtures used in the city of Lattakia from recycled rubber tires, rubber consumingto improved its performance which research showed that many around the world on the feasibility of their use. Theexperimental program included the test for this search using bitumen (60-70) and the output of recycled rubber tire damaged caused by tourist vehicles and under the age of 5 years, knowing that we used two different aggregate grading of diameters granulated rubber crumbs and different ratios grains (5-10-15)% and (2-3-4-5)‰of bitumen . It was the use of a (ARMATEST) in the process of blending bitumen with rubber crumbs according to specific parameters and conducted a series of experiments to determine the properties of recycled rubber modified bitumen and unmodified bituminous mixtures were designed when different ratios from rubber additives and processed the results of experiments using the Excel program. Experiments showed that with the increase in the proportion of rubber the penetration and ductility decreased and softening point rise , showed rubber-modified asphalt mixtures increase in stability and decrease in the flow rate from the mixture of others.