Controle tecnológico de concreto asfáltico usinado a quente : estudo de caso em uma usina de asfalto localizada no interior da Bahia

Abstract

The increase in traffic in cities has generated an increase in requirements related to paving streets, avenues and roads. These requirements are directly related to the safety that the highways guarantee to the user, as well as the comfort and economy of circulation, and need for maintenance with the highest cost/benefit ratio associated with environmental concerns. The realization of paving works must follow an efficient technical-economic planning for proper management of financial resources, as well as the management of human, material and mechanical resources. The present study aimed to perform an analysis about the technological control of hot-machined asphalt concrete in an asphalt plant located in the interior of Bahia. This was a case study. The samples were collected at the new development located in the municipality of Ilhéus, State of Bahia. For the study, a mixture of CBUQ was used that was being machined for application in a work carried out in the interior of Ilhéus. Subsequently, this material was sent to the laboratory of the institution to which the present research is intended, to perform the tests of the specimens, from which the following findings were determined: RTCD of 0.99 MPa, MR of 1968.47 MPa and an MR/RTCD ratio of 1988,35. It was concluded, therefore, that the tests performed show a good performance to fatigue of the asphalt mixture analyzed, should be better evaluated for its performance in resistance to permanent deformations.