Red mud-based asphalt powder and preparation method and application thereof

• Main Authors: WEI JINCHENG, WANG LIN, MA SHIJIE, SUN ZHAOYUN, FAN LIANG, LI XIA
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL PROCESSES OF COMPOUNDING; LIME, MAGNESIA; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; REFRACTORIES; SLAG; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF NATURAL STONE; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention provides red mud-based asphalt powder and a preparation method and application thereof, and belongs to the technical field of industrial waste treatment and transportation-building materials. The raw materials of the red mud-based asphalt powder includes matrix asphalt, red mud and zeolite powder. Red mud which is obtained through an industrial waste sintering method or a Bayer method is adopted as a raw material so that the industrial waste is utilized effectively, and micro foaming is performed on the matrix asphalt at high temperature through the zeolite powder, so that the fluidity of asphalt is improved, the area of contact with the red mud is increased, and dispersion is more uniform; then the red mud is mixed with the micro-foamed matrix asphalt so that the asphalt isadsorbed and wrapped, and the mixture is ground into powder at room temperature; and the red mud-based asphalt powder has a simple production process and good stability of storage at room temperature,construction at room temp