Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Use of Molecular Dynamics Simulation to Identify Potential Release of Polycyclic Aromatic Hydrocarbons from Asphalt Concrete Pavements
In this study, molecular dynamics (MD) simulation is done to predict the release of PAHs from the asphalt concrete (AC) pavements in the presence of moisture, tire pressure, and temperature. Naphthalene and fluoranthene PAHs are simulated with asphaltene phenol in this study. The bond stretching energy loss and the total energy loss comprehends the release of PAHs from the asphalt binder. At 5% moisture content and no tire pressure, the bond stretching energy loss is approximately 91% for both naphthalene and fluoranthene. At 5% moisture content and no tire pressure, naphthalene loses total energy of approximately 90%, while fluoranthene loses 88% of total energy. The total energy loss is approximately 85% and 88% for naphthalene and fluoranthene, respectively, at 0.68 MPa tire pressure. Results show that as the tire pressure increases the release of PAHs from asphaltene phenol decreases.
Use of Molecular Dynamics Simulation to Identify Potential Release of Polycyclic Aromatic Hydrocarbons from Asphalt Concrete Pavements
In this study, molecular dynamics (MD) simulation is done to predict the release of PAHs from the asphalt concrete (AC) pavements in the presence of moisture, tire pressure, and temperature. Naphthalene and fluoranthene PAHs are simulated with asphaltene phenol in this study. The bond stretching energy loss and the total energy loss comprehends the release of PAHs from the asphalt binder. At 5% moisture content and no tire pressure, the bond stretching energy loss is approximately 91% for both naphthalene and fluoranthene. At 5% moisture content and no tire pressure, naphthalene loses total energy of approximately 90%, while fluoranthene loses 88% of total energy. The total energy loss is approximately 85% and 88% for naphthalene and fluoranthene, respectively, at 0.68 MPa tire pressure. Results show that as the tire pressure increases the release of PAHs from asphaltene phenol decreases.
Use of Molecular Dynamics Simulation to Identify Potential Release of Polycyclic Aromatic Hydrocarbons from Asphalt Concrete Pavements
Yadavalli, J. P. S. (Autor:in) / Hossain, M. I. (Autor:in) / Azam, H. M. (Autor:in) / Pan, J. (Autor:in)
World Environmental and Water Resources Congress 2017 ; 2017 ; Sacramento, California
18.05.2017
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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