MEPDG Analysis on Relationship between Design Inputs and Performance of Asphalt Pavements

Abstract:

The main objective of this research is to explore the quantitative relationship between the pavement design parameters (structural layer thickness, voids, aggregate gradation and temperatures) and pavement performance parameters (rutting, cracking and IRI). The Mechanistic-Empirical Pavement Design Guide (MEPDG) was used and the analysis was performed on pavements under three temperature conditions namely the intermediate temperature zone (Zhengzhou in Henan Province), the low temperature zone (MOHE in Heilongjiang province) and the high temperature zone (Turpan in Xinjiang province). It was observed that 1) Pavement performances (rutting and cracking) were significantly impacted by layer thickness values until the values were larger than 14 inch; 2) Air void content influenced on not only predicted pavement rutting but also the thermal cracking.

• Periodical: Applied Mechanics and Materials (Volumes 668-669)
• Pages: 1434-1437
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.668-669.1434
• Online since: October 2014
• Authors: Hong Bo Zhang*, Jing Hou, Yu Liu, Da Fa Xuan, Wei Min Fan
• Keywords: Air Voids, Bailey Method, Highway Engineering, Layer Thickness, MEPDG

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