Dephosphorizing copper slag modified asphalt mixture and preparation method thereof

• Main Authors: LIU HANBING, WANG XIANQIANG, MA NANNAN, JIAO YUBO, FU LIUXU, TAO JINGLIN, SHAN WENCHEN
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to a dephosphorizing copper slag modified asphalt mixture and a preparation method thereof and belongs to the technical field of road engineering materials. The dephosphorizing copper slag modified asphalt mixture comprises 9-11 parts of matrix asphalt, 1.0-1.5 parts of waste rubber powder, 0.3-0.5 part of styrene-butadiene-styrene modifier, 0.2-0.8 part of aromatic hydrocarbon oil, 0.15-0.25 part of furfural extract oil, 0.1-0.2 part of sulfur, 130-170 parts of stone, 20-30 parts of copper slag, 10-20 parts of steel slag, 15-25 parts of coal ash and 0.5-1.0 part of diatomite. Reutilization of the waste rubber powder and the copper slag is realized, pavement performances like high-temperature stability and low-temperature crack resistance of the asphalt mixture can be remarkably improved, and the asphalt mixture is an environment-friendly ecological pavement material. 本发明涉及种脱磷铜渣改性沥青混合料及其制备方法，属于道路工程材料技术领域。包括基质沥青9-11份，废旧橡胶粉1.0-1.5份，苯乙烯-丁二烯-苯乙烯改性剂0.3-0.5份，芳烃油0.2-0.8份，糠醛抽出油0.15-0.25份，硫磺0.1-0