Abstract

LOPERA PALACIO, CONRADO H.  and  CORDOBA MAQUILON, JORGE E.. WARM MIX ASPHALT DESIGN FROM MIX ASPHALT AND CRUDE PALM OIL. Dyna rev.fac.nac.minas [online]. 2013, vol.80, n.179, pp.99-108. ISSN 0012-7353.

Increased environmental awareness and stricter regulation of atmospheric emissions have allowed develop the warm mix asphalt (WMA). These mixtures are produced at a lower temperature than the mixtures in hot reducing the viscosity of the asphalt and decreasing production costs by reducing the fuel consumption. To reduce the viscosity at low temperatures using chemical additives yet it is the first time that is used in Colombia crude palm oil as an additive reducer in asphalt viscosity. Colombia is the largest producer of palm oil in Latin America and the fourth worldwide. The gradation of the mixture was obtained with 54.1% of fat, 41.7% fines and 4.2% of filling using hydrated lime, and mixed with 60-70 penetration asphalt, modified with 1% crude palm. The design is performed by the Marshall method, the production temperature of the mixture is reduced and the viscosity of the asphalt and improved performance of the warm mix asphalt compared to the hot mix asphalt.

Keywords : Warm mix asphalt; viscosity; temperature; asphalt; crude palm oil.

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