چكيده به لاتين
Abstract:
In petrochemical industry, wastes generated during the production process, in addition to the environmental damages due to unusability, they cause annual maintenance costs to the petrochemical industry. These wastes consist of compounds with more than 80% similarity to polyvinyl chloride, and the rest of inpurities are due to the effects of chemicals remaining during the process of polymerization and wastewater treatment. Due to their unused and non-worthy materials, they can be used as a polymer to improve bitumen and asphalt mixtures properties. In this research, the effect of polyvinyl chloride residue powder obtained from Arvand Petrochemical Co. on moisture sensitivity and shear strength of asphaltic stone mastic asphalt (SMA) was investigated. For this purpose, samples containing 3, 5/5, 8 and 10.5% of the waste as bitumen modifier and its mixtures properties compared to pure bitumen samples. The results show that this additive reduces the moisture sensitivity and increases the permanent deformation resistance of the asphalt specimen and can be used as a bitumin modifier polymer.
Keywords: Polyvinyl chloride residue, Stone mastic asphalt, Moisture sensitivity, Permanent deformation resistance
