Effect of graphene oxide on the viscosity of Mexican asphalt
DOI:
https://doi.org/10.69681/lajae.v7i1.40Keywords:
Asphalt, Asphalt viscosity, Graphene OxideAbstract
Asphalt is a widely used material for road construction around the world due to its physical characteristics; however, its performance is limited by weather conditions and traffic composition. In this context, various modifications have been explored to enhance its properties, including improvements in mechanical performance. One such modification involves the addition of graphene oxide, a nanomaterial known for its high mechanical strength as well as its electrical and thermal properties. This study analyzes the effect of graphene oxide on the viscosity of base PG 64-22 asphalt, following the AASHTO T 316 test method for determining mixing and compaction temperatures. Concentrations of 1 %, 3 %, and 4 % by weight of asphalt were used. The results showed that, due to proper dispersion and frictional interactions between the two materials, viscosity readings increased. Additionally, viscosity curves were developed for both the original and the graphene oxide–modified asphalt. These results indicated that the mixing and compaction temperatures for the modified asphalt increased compared to the original asphalt.
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