Enhancing Asphalt Performance with Polymer Blends: A Rheological Study
نویسندگان
1 Department of Chemistry, College of Education for Pure Sciences, University of Mosul, Mosul, Iraq
2 General Directorate of Nineveh Education, Ministry of Education, Mosul, Iraq
3 Department of Chemistry, College of Education for Pure Sciences, University of Mosul, Mosul, Iraq
doi
10.22052/JNS.2025.02.010چکیده
This study investigates the use of polymer blends [polyvinyl acetate (PVA) and polyvinyl chloride (PVC)] to modify and improve the rheological properties of asphalt material and make it more resistant to environmental conditions such as acid rain and aging when used in road paving. Specific proportions of the polymer blend [polyvinyl acetate (PVA): polyvinyl chloride (PVC)] were added to the asphalt with the addition of 1% of (nano-sulfur) at a temperature ranging between (150-170) °C for one hour for each sample. Rheological measurements of the original and modified asphalt were performed, including penetration, ductility, softening point, and penetration index, in addition to measuring the Marshall coefficient, aging test, and scanning electron microscope (SEM) for some selected samples and comparing them with normal asphalt. The results indicate that the asphalt modified with the polymer blend and nano-sulfur resists environmental conditions of different temperatures, acid rain, and aging more than normal asphalt, making it a suitable candidate for road paving applications.
