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Technical, Environmental, and Economic Advantages in the Use of Asphalt Rubber

2021; Springer International Publishing; Linguagem: Inglês

10.1007/978-3-030-65493-1_59

2367-1181

Mariáh P. S. P. Soares, Niander Aguiar Cerqueira, Felipe Fraga de Almeida, Afonso Rangel Garcez de Azevedo, Markssuel Teixeira Marvila,

Transport Systems and Technology

The correct disposal of tires is a major concern for the environment. A part of the waste is used to manufacture rubber asphalt, providing environmental, technical, and economic advantages. In the present work, it was identified that the permanent deformation at 60 °C in 10,000 cycles for CAP 50/70 (traditional asphalt) is 4.7%, while rubber asphalt is 2.5%. In addition, the permanent deformation at 60 °C in 30,000 cycles for CAP 50/70 is 6.2%, and for rubber asphalt, it is 3.2%. Thus, the pavement with rubber asphalt is more durable compared to the pavement with CAP 50/70. So, even though rubber asphalt is a little more expensive, in the end, it becomes more economical because it has greater durability. Moreover, over the years the CAP 50/70 will need more maintenance, while rubber asphalt promises a much lower amount of maintenance.