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- W1512262185 abstract "The rheological properties of asphalt are directly related to its chemical composition, which varies with the origin of crude oil. The rheological behavior of the binder has a significant influence on the properties of the asphalt- -aggregate mixture (truck-wheel test, fatigue, and thermal susceptibility,). To describe the rheological behavior of asphalt from the Barrancabermeja Industrial Complex (IBC) and the modified asphalt with recycled material (polystyrene and tire rubber) with and without control of particle size, viscosity measurements were conducted at different temperatures (intervals of 2 o C) with a Brookfield rotational viscometer, and from these data suggested several mathematical expressions that describe the behavior of viscosity in terms of temperature, were evaluated in terms of the coefficient of determination, and determined the mixing and compaction temperatures. The results indicate that the best fit in the three cases corresponds to the Arrhenius model truncation, correlations between 0.9945 and 0.9968. The mixing and compaction temperatures calculated from this model compared to those of norms ASTM D2493 (2001) and AASHTO (2002) were significantly different for the modified asphalt (polymer-controlled particle size), but similar to the original asphalt. Furthermore, in order to establish the chemical structure of the original and modified asphalt and its influence on the viscosity, the separation was performed for each sample according to ASTM D4124 (2001). The results indicated that only structural changes occurred in the polymer-modified asphalt controlled particle size, which shows the relationship between chemical composition and viscosity of the three binders studied." @default.
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- W1512262185 date "2009-12-01" @default.
- W1512262185 modified "2023-09-23" @default.
- W1512262185 title "MODELING OF RHEOLOGICAL BEHAVIOR OF CONVENTIONAL AND RECYCLED POLYMER MODIFIED ASPHALT" @default.
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