Construction of an SMA trial section using sugar cane as additive
DOI:
https://doi.org/10.5935/1809-2667.20120060Keywords:
Stone Matrix Asphalt, Sugar Cane Bagasse, Resilience Modules, FillerAbstract
Researchers have sought appropriate solutions for improving the performance of our paving facing floor modifications of commercial vehicles. Stone Matrix Asphalt (SMA) is an excellent alternative to raising the performance of Brazilian pavements. This mixed asphalt, with discontinuous grain and about 70% of coarse aggregate, optimizes the stone to stone contact, greatly increasing the structural performance of the pavement, particularly with regard to permanent deformation. SMA mixtures, with high content of asphalt binder fibers, require stabilizing additive to prevent drain down during mixing and placement. Production of sugar and alcohol generates about 270 kg of bagasse per ton of crushed sugarcane. Most of the bagasse is burned in boilers at power plants for the production of thermal or electric energy. It is estimated that approximately 20% of the pulp is not burnt. This research aims mostly to study the utilization of sugarcane bagasse as a stabilizing additive in SMA asphalt mixtures produced with asphalt rubber tire, thus replacing cellulose fiber. To verify this hypothesis, a laboratory study was made, and a trial section was constructed to evaluate the mixture in use.Downloads
References
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