Oxidized graphene and waste vegetable oil composite modified warm mix asphalt and preparation method

• Main Authors: NIE SIYU, LIU KEFEI, JIANG KANG, SHI XIANMING, YE YONG
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses oxidized graphene and waste vegetable oil composite modified warm mix asphalt. The oxidized graphene and waste vegetable oil composite modified warm mix asphalt is prepared from the following components in percentage by mass: 0.02%-1% of oxidized graphene, 3%-15% of dehydrated waste vegetable oil, and 84%-96.98% of matrix asphalt. The invention further discloses a preparation method for the composite modified warm mix asphalt based on the oxidized graphene and the dehydrated waste vegetable oil. The preparation method comprises the following steps: step 1, heating the matrix asphalt, adding the oxidized graphene into the heated matrix asphalt, shearing, stirring, to obtain oxidized graphene modified asphalt; and step 2, cooling the modified asphalt, adding the dehydrated waste vegetable oil into the cooled modified asphalt, stirring, to obtain the composite modified warm mix asphalt. 本发明公开了种氧化石墨烯与废食用油复合的改性温拌沥青，由以下组分按照质量分数计：0.02%～1%氧化石墨烯；3%～15%脱水废食用油；84%～96.98%基质沥青。本发明公开了基于氧化石墨烯与脱水废食用油的