THE COLOR MODIFIED ASPHALT MIXTURE AND COLOR MODIFIED ASPHALT USING THEREOF

摘要

A color modified asphalt mixture and color modified asphalt thereby are provided to cut down expenses by using color aggregate or coating oily paint in a surface of asphalt, and to improve durability by chemically assembling a surface of aggregate with asphalt with an asphalt modifying additive. A mixture of 100 wt% is formed by mixing colored or painted large aggregate of 50~80 wt%, colored or painted small aggregate of 15~40 wt% and a filler of 5~10 wt%. A color modified asphalt mixture is manufactured by mixing a transparent petroleum resin colorless binder of 5~30 wt% or asphalt pitch selected among color natural asphalt, petroleum asphalt or tar, an asphalt modifying additive of 1 to 10 wt% selected among ethylene copolymer or styrene copolymer, ionomer of 0.5~2 wt% including sodium or zinc metal as copolymer of ethylene and methacrylic acid, and siloxane oligomer of 0.1~2 wt% having average molecular weight of 200 to 15000 or silane compound of 0.1~2 wt% having average molecular weight of 2000 to 15000. The additive is formed of the ethylene copolymer selected among ethylene vinyl acetate, ethylene ethyl acrylate or ethylene methyl acrylate with the average molecular weight of 1500 to 90000, or the styrene copolymer selected among styrene-butadiene-styrene copolymer or styrene-butadiene-rubber copolymer with the average molecular weight of 2000 to 900000.