Dynamic modulus characterizes the viscoelastic behavior of asphalt materials and is the most important input parameter for design and rehabilitation of flexible pavements using Mechanistic–Empirical Pavement Design Guide (MEPDG). Laboratory determination of dynamic modulus is very expensive and time consuming. To overcome this challenge, several predictive models were developed to determine dyn...

Asphalt concrete pavements are vulnerable to freeze-thaw cycles. Consecutive cracking and penetration of corrosive agents can expedite the degradation asphalt result in weight loss reduced strength. Fiber reinforcement flexible bituminous bridge cracks limits crack width enhances toughness composite. Furthermore, steel fibers facilitate heating during maintenance repair operations. Electrical r...

For any given road layout or curvature skid resistance as property of pavement surface and tyre is a decisive factor limiting the speed threshold for safe driving. Skid resistance is no fixed value and is significantly lowered in case of precipitation depending on form and rate. A further influence factor in such cases is the macro texture of pavements due to their capacity to hold precipitatio...

This technical summary discusses the application of a recently introduced technique, based on magnetic imaging tomography, to determine the thickness of freshly placed concrete. This technique may be used for process testing and for acceptance testing during construction of new concrete pavements. The technique is applicable only to plain (nonreinforced) concrete pavements. The results of recen...

Significant progress has been made in research on environmental life-cycle assessment (LCA) of pavements. Use of this new knowledge has been slowed by a lack of standardized datasets and analysis protocols. Several software packages have been developed to address this by providing datasets with broader coverage and better quality, but practitioners need applicationspecific data input interfaces...

The study presented in this paper analyzed four long-term pavement performance (LTPP) test sections located the states of New York (NY) and California (CA). Two them are flexible sections, whereas other two composite sections. levels analysis—in-state analysis cross-state analysis—were performed for these to determine impacts traffic climate conditions. was evaluated respect thermal cracking ru...

Unlike conventional pavements with a service life of 20~30 years, perpetual (PPs) are designed to have 50-year without requiring major maintenance and rehabilitation (M&R) activities. In this way, PPs more cost-effective than rigid (CRPs) flexible (CFPs). Nonetheless, even though the economic mechanical aspects been widely studied well documented, literature is limited regarding environment...