WARM MIX RECYCLED ASPHALT ADDITIVE CONTAINING OIL DREGS, AND WARM MIX RECYCLED ASPHALT MIXTURE CONTAINING SAME
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United States of America Patent
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Issued Date -
Nov 19, 2015
app pub date -
Dec 9, 2013
filing date -
Dec 11, 2012
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Abstract
A warm mix recycled asphalt additive according to one embodiment includes dregs of oil and fat which are the by-products remaining after fatty acids are extracted from oils. In addition, the warm mix asphalt mixture according to another embodiment includes 2-15 wt % of the warm mix recycled asphalt additive, having dregs of oil and fat which are the by-products remaining after fatty acids are extracted from oils, on the basis of the total amount of waste asphalt in waste asphalt concrete. It is possible to overcome the problem of brittleness or the deterioration of lower temperature properties even if mixing and using waste asphalt concrete and new asphalt concrete when making asphalt concrete, to minimize the generation of toxic gas by exhibiting a technique for paving a warm mix mixture, and to reduce the environmental burden by efficiently regenerating waste asphalt concrete and recycling organic dregs.
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