Heat-insulating bituminous mixture for roads and production method thereof

• Main Authors: ZHAO PENG, WANG ZHENJUN, WANG YU, AI TAO
• Format: Patent
• Language: Chinese; English
• Published: 28.12.2011
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

The invention discloses a heat-insulating bituminous mixture for roads, which comprises the following materials in percentage by volume: 26 and 49 percent of limestone aggregate, 31 to 37 percent of porous basalt aggregate, 11 to 23 percent of coal ash floating bead, 1 to 4 percent of limestone mineral powder and 8 to 10 percent of SBS modified oil asphalt. The production method comprises the steps of: drying the limestone aggregate, the porous basalt aggregate, the coal ash floating bead with 0.15 and 0.075 millimeter, the limestone mineral powder, and the coal ash floating bead of less than0.075 millimeter at 185 DEG C for 24 hours; mixing the limestone mineral powder and the coal ash floating bead of less than 0.075 millimeter in a proportion, and mixing the mixture and the SBS modified oil asphalt at 170 DEG C for uniform stirring; and adding the limestone aggregate, the porous basalt aggregate and the coal ash floating bead with 0.15 and 0.075 millimeter into the mixture for uniform stirring. The heat-in