Abstract. The AASHTOWare mechanistic-empirical pavement design (PMED) is a state-of-the-art new and rehabilitation project design proce-dure that accounts for local environmental conditions, highway materials, and actual highway traffic distribution using axle load spectra. The distress prediction models must be calibrated for a particular state or region to apply this procedure precisely....
Abstract. This paper presents a study of the applicability of the MeDiNa pavement design methodology, a mechanistic-empirical software developed in Brazil, to the Portuguese pavement structures. The paper describes the main features and assumptions of the MeDiNa software, and compares the predicted pavement performance indicators, such as cracking and rutting, with the Portuguese...
Abstract: The paper is devoted to high modulus asphalt concrete, more commonly known as EME or HMAC. The general characteristics of the mixture were presented, with particular emphasis on fatigue life and the impact on the design life of the pavement structure, based on experience from various countries. Computational analyses of typical structures were carried out using the mechanistic...
Abstract. The maintenance and rehabilitation of flexible pavements gener-ates an appreciable volume of waste from the reclaimed asphalt pavement (RAP). One of the processes for the RAP valorization is the transformation into recycled aggregates to be reintegrated in the pavement life cycle, to-wards a circular economy model. Unbound granular layers of flexible pave-ments are a field of...
Abstract. There is significant attention given by governments and industry to reducing tail-pipe emissions from Internal Combustion Engines (ICE) in transport system vehicle fleets. The transport sector is one of the largest sources of greenhouse gas emissions and is responsible for approximately one-third of total CO2 emissions globally which has resulted in intensified global warming and...
Abstract. The objective of the present paper is to determine the thickness of bituminous overlay on the top of a flexible road pavement using a mechanistic-empirical approach. The thickness of the overlay has been estimated on the basis of allowable deflection at the overlay-pavement interface to withstand anticipated axle load repetitions during its service life, while the strength of...
