Current Status and Challenges of Molecular Simulation in the Application of Asphalt for Road Construction
An in-depth study of the microscopic structure of road asphalt is crucial for understanding its performance and applications.Molecular simulation techniques have emerged as key tools for probing the micro-mechanisms of asphalt.However,existing molecular simulation models,methods and conclusion indicators for road asphalt often stem from the field of petrochemical chemistry,resulting in significant disparities with the actual conditions of road asphalt.Petrochemical chemistry research frequently neglects certain micro-interactions in road asphalt,such as intermolecular interactions,which play pivotal roles in road performance and applications,which are challenging to precisely calculate through simulations.In light of these considerations,this paper provides a comprehensive review of the current status and challenges of molecular simulation in the application of road asphalt,highlighting the encountered technical constraints and distinctions from research on petroleum asphalt,and proposes a molecular simulation approach specifically tailored to road asphalt performance.
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