Proposição de metodologia para análise de risco em estruturas de pavimentos asfálticos flexíveis

Abstract

The Highway Design Project involve various stages of planning, studies and projects. These phases are usually discussed and defined the possible engineering solutions to be applied in each step of executive phase. To validate the plan-ning and design solutions, it is necessary to ensure that the resources used, such as materials, labor, machinery, equipment and executives processes employed in the field to meet pre-specified technical requirements for the project. Occurs, however, that in Brazil and other countries of the world, many of the methods used for the design of pavements structures are deter-ministic in nature, in other words, they use the average parameters for mechanical structure characterization not bothering to quantify the damage caused by the variation of parameters from the executive process. In practice, as all industrial processes, construction processes are subject to vary that should always be measured and controlled to ensure product quality. Within this context, this work presents a methodology to carry out risk analysis of flexible pavements structures based on mechanistic criteria commonly used in Brazil. Based on the case studies it was found that the proposed methodology provides good practical application in both project design and quality control phases for new pavement structures.