نائبه مصطفائي

Nowadays, with the growth of the population and the industrial progress of the societies, the need to have quality and safe roads is always increasing. On the other hand, population growth and industrial developments have caused an increase in the production of industrial waste, which has caused many pollutants to enter the environment and cause water, air and soil pollution. According to the stated conditions, the idea of using industrial waste in asphalt mixtures with the aim of improving the properties and modifying the functional properties of asphalt mixtures can be very efficient. In this research, the residue of the distillation tower of burnt oil purification has been used as a bitumen modifier additive. So that at first 5, 10, 15 and 20% of this material was mixed with bitumen and then asphalt samples were made with the resulting bitumen and subjected to various functional tests including dynamic creep tests, indirect tensile strength, cracks Indirect tensile strength, Illinois flexibility index and semicircular bending were determined, and their aging and recovery properties were eva‎luated to finally suggest the optimal amount of use of this material with the approach of balanced mixing design. The obtained results show that the residue of the distillation tower for the purification of burnt oil improves the performance of asphalt mixtures at low and medium temperatures and improves the cracking and fatigue resistance of asphalt mixtures and has improved the performance of asphalt mixtures against aging. On the other hand, the addition of this material has reduced the rutting resistance of asphalt mixtures at high temperatures. According to the investigations and analyzes conducted based on the balance mixing plan, with the simultaneous investigation of the effect of the waste material of the distillation tower of burnt oil purification on the rutting and cracking of the asphalt samples, and also considering the moisture damage on the asphalt mixtures, the use of this material at the rate of 5% It is recommended as an additive in cold areas with low traffic.

پسماند برج تقطير تصفيه روغن ‌سوخته , مخلوط هاي آسفالتي , آزمايش هاي عملكردي , طرح اختلاط تعادلي , ترك خوردگي

waste oil distillation tower waste , Asphalt mixtures , Performance Tests , balance mix design , cracking

Naebe Mostafaei

Dr. Ameri