ADDITION OF AN INDUSTRIAL RESIDUE TO ASPHALT: EVALUATION OF MATERIAL PROPERTIES

T. N. Castro Dantas, M. C. P. A. Moura, C. K. M. Lima, A. A. Dantas Neto, G. B. Felix

Abstract


Polymer waste from a button manufacturer was blended with 50/60 penetration-grade petroleum asphalt cement with the purpose of enhancing its physical properties and to obtain pavements which are more resistant to temperature gradients and permanent deformation. This polymer waste is considered as an environmental problem because it is produced in large scale and stored in sanitary landfills. First, the polymer waste was classified as unsaturated polyester. Then, the waste was blended with asphalt according to the following experimental conditions: polymer content: 2.0, 7.0, or 14.0 wt.%; mixing temperature: 140 or 180 C; and mixing time: 20 or 60 min. The results obtained in penetration index, ring-and-ball softening point, flash point, and viscosity assays showed that the addition of polymer waste as an insoluble material to asphalt is a viable alternative to solve this environmental problem.

Keywords


asphalt; polymer; button; industrial waste; environment

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DOI: http://dx.doi.org/10.5419/bjpg2010-0018