Performance-Based Asphalt Mix and Pavement Design

Romanian Journal of Transport Infrastructure

Blab Ronald¹ 

[1] Chair of Road and Airfield Engineering, Faculty of Civil Engineering, Vienna University of Technology, Austria;

关键词: hot mix asphalt;    performance test;    mix design;    mechanical pavement design;   

DOI  :  10.1515/rjti-2015-0009

来源: DOAJ

【 摘 要 】

Prediction and optimization of in-service performance of road pavements during their live time is one of the main objectives of pavement research these days. For flexible pavements the key performance characteristics are fatigue and low-temperature, as well as permanent deformation behavior at elevated temperatures. The problem facing pavement designers is the need to fully characterize the complex thermo-rheological properties of hot mix asphalt (HMA) over a wide temperature range on the one hand, while on the other also providing a realistic simulation of the traffic- and climate-induced stresses to which pavements are exposed over their design lives of 20 to 30 years. Where heavily trafficked roads are concerned, there is therefore an urgent need for more comprehensive test methods combined with better numerical forecast procedures to improve the economics and extend the service lives of flexible pavements under repair and maintenance programs.

【 授权许可】

Unknown