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Analysis of Short-Term Ageing Mechanism of Pyro-oil Modified Bitumen Compared to VG30 Based on FTIR Spectroscopy
Globally, the production of plastic is increasing over the years due to its various applications in different sectors. As the demand for plastic is increasing day by day, consequently, results in accumulation of plastic waste. Till the time, various elastomer, plastomer, and rubber are used to modify binder. Here, an attempt was made to modify bitumen with plastic-oil also known as pyro-oil and to check ageing properties of the same. The rheological and chemical behaviour of asphalt and modified asphalt are complex due to its unpredictable nature. In this investigation, asphalt was modified with pyro-oil from high-density polyethylene. Pyro-oil was obtained by pyrolysis of HDPE at about 750 °C. Pyro-oil modified bitumen (POMB) was prepared by addition of 5%, 10%, and 15% of HDPE pyro-oil by total weight of asphalt binder mixed at 3000 rpm for about 120 min. The effect of short ageing for POMB was studied and compared with base binder VG30 using FTIR spectroscopy. All three bitumen binders (VG30, POMB) subjected to ageing and changes in chemical composition were analyzed using FTIR spectroscopy. FTIR results were used to validate chemical bonds like C=O and S=O which lead to changes in viscosity and stiffness of binder. It was observed that ageing influences the bitumen chemistry.
Analysis of Short-Term Ageing Mechanism of Pyro-oil Modified Bitumen Compared to VG30 Based on FTIR Spectroscopy
Globally, the production of plastic is increasing over the years due to its various applications in different sectors. As the demand for plastic is increasing day by day, consequently, results in accumulation of plastic waste. Till the time, various elastomer, plastomer, and rubber are used to modify binder. Here, an attempt was made to modify bitumen with plastic-oil also known as pyro-oil and to check ageing properties of the same. The rheological and chemical behaviour of asphalt and modified asphalt are complex due to its unpredictable nature. In this investigation, asphalt was modified with pyro-oil from high-density polyethylene. Pyro-oil was obtained by pyrolysis of HDPE at about 750 °C. Pyro-oil modified bitumen (POMB) was prepared by addition of 5%, 10%, and 15% of HDPE pyro-oil by total weight of asphalt binder mixed at 3000 rpm for about 120 min. The effect of short ageing for POMB was studied and compared with base binder VG30 using FTIR spectroscopy. All three bitumen binders (VG30, POMB) subjected to ageing and changes in chemical composition were analyzed using FTIR spectroscopy. FTIR results were used to validate chemical bonds like C=O and S=O which lead to changes in viscosity and stiffness of binder. It was observed that ageing influences the bitumen chemistry.
Analysis of Short-Term Ageing Mechanism of Pyro-oil Modified Bitumen Compared to VG30 Based on FTIR Spectroscopy
Lecture Notes in Civil Engineering
Singh, Dharamveer (editor) / Vanajakshi, Lelitha (editor) / Verma, Ashish (editor) / Das, Animesh (editor) / Hadole, Hemantkumar P. (author) / Ranadive, Mahadeo S. (author)
Proceedings of the Fifth International Conference of Transportation Research Group of India ; Chapter: 30 ; 413-424
2022-05-14
12 pages
Article/Chapter (Book)
Electronic Resource
English
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