Avaliação de propriedades mecânicas de misturas asfálticas incorporadas com elevado teor de material fresado

Abstract

Asphalt pavement recycling has relevance in the road segment, since it allows the achievement of technical quality, cost reduction and mitigation of environmental impacts. Thus, the increase in high levels of milled material and its application on an asphalt base may point to a viable solution for segments subject to high traffic. Therefore, the present work aims to evaluate the mechanical properties of asphalt mixtures with a high content of recycled asphalt material. A percentage of 50% RAP was used and mechanical tests of tensile strength by diametrical compression were performed; cannabar wear; resilience and fatigue module. Subsequently, a structure was modeled using the MeDiNa software in order to assess, in view of real traffic conditions, the structural and functional performance. Among the main results is the increase in the resilience module and tensile strength, low cannabinoid wear and adequate response to fatigue cracking during the life of the pavement.