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It is important to further improve the microwave absorption capacity of bitumen to promote the application of microwave heating in pavement maintenance. SiC-Fe3O4 composites were prepared a...

The skeleton structure has a strong influence on the uncured and cured performances of the epoxy asphalt mixture. Based on the Bailey method, the different skeletal structures of the mixtur...

Over the years, the Indiana Department of Transportation (INDOT) has changed its emphasis from construction to preservation of public highways. As such, there is great interest in assessing cost efficacy of a pavement preservation strategy. This paper aims to present the functional and structural benefits of microsurfacing applications at highway sections in Indiana. To achieve this goal, comprehensive monitoring and data analysis was performed using the pavement condition rating (PCR), structure number (SN), and surface roughness [international roughness index (IRI)] for in situ performance evaluation. According to the deflection and roughness analysis, an improvement was observed in SN and IRI during the early life of the pavement. Furthermore, no significant difference was obtained over the following 2 years. Application of the microsurfacing resulted in a significant rise in PCR and SN and decline in IRI. A similar result was found at the resurfacing site. Pavement with microsurface sections h...

Fatigue cracking is considered to be one of the main pathologies in asphalt pavements, contributing to the reduction of its service life and generating high costs as a consequence of more m...

Maintenance and reconstruction of road pavements involve the production of huge amount of discarded material, such as reclaimed asphalt (RA), every year. As a consequence, issues related to RA stockpiles and disposals are dramatically increasing. At the same time, the growing importance of environmental and economic matters has led researchers and engineers to promote reusing milled materials rather than using valuable and nonrenewable natural resources (bitumen and aggregates). Road pavement maintenance and construction usually involve the use of porous asphalt (PA) mixtures, in particular in the case of motorways and highways. In fact, PA mixtures are widely employed as pavement surface layer thanks to their ability in reducing traffic noise and enhancing safety in wet conditions. In this sense, the reuse of RA into PA should be strongly encouraged. Unfortunately, technical specifications adopted in many countries do not allow any recycled materials in porous asphalt surface layers yet. Thus, re...