Estudo das propriedades mecânicas de misturas asfálticas com cimento asfáltico de petróleo modificado com óleo de mamona.

Abstract

Searching for more productive ways of paving, optimizing the use of natural resources, and limiting the impact of these activities on the environment is a global concern which has as main objective a sustainable development. Utilizing asphalt with modifying agents result in reduced costs when maintaining the pavement, decrease of energy consumption, and reduction of environmental pollution. This research is focused on the variable "CAP" where we used the Superpave method of dosing, the study of physical properties, mechanical properties, state of materials and modified asphalt mixtures. In order to verify the technical viability of using castor oil as an additive in asphalt mixtures. Based on tested methods recommended by DNIT, AASHTO, and ASTM highlighting the Brookfield Viscosity tests, and the Lottman Module Resilient, was possible to verify the efficiency of asphalt mixtures composed with a 5% percentage of castor oil in relation to the "CAP" which generated a reduction in machining temperature, adding and compacting an average of eight degrees Celsius (8°C). The results indicate that the castor oil can be utilized as a green additive causing a smaller impact on the environment and a reduction in machining costs by nine percent (9%) in quantitative BPF oil used in the manufacture of conventional mixture