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- W2243317045 abstract "Durability of asphalt pavements includes many aspects related to the mechanical responses of materials, the interactions between structure and materials, and the influence of singular and interactive non-load related mechanisms like oxidative aging and moisture damage. In this paper, the use of models to enhance and improve the durability of asphalt pavements is examined. As background, some of the more widespread models that are used in asphalt concrete technology are classified with respect to their defining characteristics and uses. The differentiation between a singular model and a pavement analysis system is an important part of this discussion. Subsequently, some of the better known pavement analysis systems are briefly described and some key findings from the development and use of these tools are presented. Descriptions of how models and pavement analysis systems are useful in various aspects of pavement technology and thus how these tools contribute to enhancing asphalt pavement durability are also given. Following this discussion, some comments are given regarding the two issues raised during the workshop that has led to this document: (1) the use of models to guide mixture composition decisions and (2) the potential for model fatigue in the asphalt concrete community. Finally, the last section provides a brief summary and overview of the key points. The author concludes that models and pavement analysis systems play an important role in the development of durable pavements. These models help to identify the mechanisms and factors that lead to damage, which eventually causes distresses that accumulate and cause a loss in durability. The insight gained through the development and calibration of mathematical models can inform mixture design and pavement design decisions. It can also provide guidance on construction control, required specifications, and quality control and quality acceptance tests that capture fundamental material properties and thus require less overall experimental effort. The current state of the art has provided robust material level models that are identifying the materials that will perform better or worse in a given pavement situation. Future research and study will continue to identify the links between asphalt mixture constituents, asphalt concrete damage, and pavement distresses. These more advanced models and integrated pavement analysis tools can be useful for developing a more durable pavement infrastructure." @default.
- W2243317045 created "2016-06-24" @default.
- W2243317045 creator A5063275082 @default.
- W2243317045 date "2014-09-01" @default.
- W2243317045 modified "2023-09-23" @default.
- W2243317045 title "Use of Models to Enhance the Durability of Asphalt Pavements" @default.
- W2243317045 hasPublicationYear "2014" @default.
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