ASPHALT AGGREGATE, AND METHOD OF MANUFACTURING THE SAME

• Main Authors: YUKI TOSHITAKA, IKEZAKI EIJI, YOKOO MASAYOSHI
• Format: Patent
• Language: English
• Published: 18.11.2004
• Edition: 7
• 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

PROBLEM TO BE SOLVED: To provide asphalt aggregate produced from a converter slag and having a shape capable of being uniformly dispersed in asphalt and a particle diameter suitable as the asphalt aggregate, and to provide a method of producing the asphalt aggregate. SOLUTION: The asphalt aggregate consists mainly of granular slag 15 prepared by pulverizing molten converter slag 10 having low basicity, rapidly solidifying and granulating and having ≥60% solid volume percentage. The method of producing the asphalt aggregate is performed by mechanically pulverizing or pulverizing with wind force the molten converter slag 10 having low basicity in the molten state, sprinkling water to rapidly solidify to form a granulated material 13 and dipping into water to manufacture the asphalt aggregate consisting mainly of the granular slag 15 having 60% solid volume percentage and free from the collapse due to expansion. COPYRIGHT: (C)2005,JPO&NCIPI