Avaliação de variabilidade de misturas asfálticas aplicadas em um trecho experimental e aplicação de fator de pagamento

Abstract

Asphaltic mixtures have properties that might change due to factors such as temperature, storage, transportation and design characteristics related to its constituents. This variation may result in pavement distresses such as cracking and excessive wearing, generating problems to drivers and high maintenance costs. From the asphalt mixture’s volumetric characteristics from a test section and field data collected after construction, it was possible to point out steps from the executive process in which the final section variability was also affected by execution problems, not only the ones inherent to the asphalt mixture’s variability. The analyzed data suggest the need to create a quality control process in pavements based on probabilistic parameters to define the variability presented by the material besides performing a verification on the Pay Factor method as a quality management tool.