Abstract
In this study, a mixture of two polymers consisting of commercial adhesive [ethylene vinyl acetate (EVA)] and melamine (M) Which were used in this study. Different weights of both polymers were used with total weights equal for (1 g). The asphalt was treated with the above mixture in the presence of 1% by weight of sulfur at (180 ° C) for one hour. The rheological properties of the modified samples and original one were measured, which included measuring the ductility , penetration, and softining point as well as calculating the penetration index and percentage of the separated asphaltens . After that, the best samples obtained from the above modification process were taken, and several interactions were performed on it in order to determine each of : The optimum conditions for the conversion process have been established and include the percentage of added sulfur and the temperature the best time, the best weights of the mixture, and the best addition sequence. After that, the best sample obtained from this study was taken and the marshals test with chemical immersion was performed, as well as the effect of aging on this sample was studied. The study gave good results in the field of asphalt resistance to the deformation processes which were carried out on it.
Highlights
الخلاصة استخدم في هذه الدراسة مزيج مكون من بوليمرين مصنعين هما اللاصق التجاري ال ُمكون بصورة رئيسة من الاثيلين فينايل استيت
a mixture of two polymers consisting of commercial adhesive [ethylene vinyl acetate
Which were used in this study
Summary
الخلاصة استخدم في هذه الدراسة مزيج مكون من بوليمرين مصنعين هما اللاصق التجاري ال ُمكون بصورة رئيسة من الاثيلين فينايل استيت. من الكبريت عند( ◦180م) ولمدة ساعة واحدة. وقيست الخواص الريولوجيه للنماذج المحورة التي اشتملت على قياس كل من الاستطالة و النفاذية و درجة الليونة فضلا عن حساب يعد امر الحصول على إسفلت ذا خواص ريولوجية ممتازة تتلائم مع الغايات التي تستخدم من اجلها أمر بالغ الأهمية .من دراستنا هذه تم استخدام مزيج من بوليمرين أحدهما يعطي نتائج جيدة في مجال التحوير الريولوجي الا وهو ال ) )29((EVAوالميلامين الذي لا يتعدى استخدامه الريولوجي عن كونه مادة مالئة ( .)30لذلك حاولنا من خلال هذه الدراسة إيجاد توليفة ملائمة للتحوير الريولوجي ُمك ّونة من كلا
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