Regeneration technology for asphalt concrete pavement

• Main Authors: Liang Chao, Cui Baolei, Li Jianyong, Wu Sheng
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2016
• 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; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; 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 provides a regeneration technology for an asphalt concrete pavement. The technology includes the following steps that the asphalt concrete pavement is milled and planed, wherein the milling and planing thickness of the first layer is 2 cm to 6 cm, and the milling and planing thickness of the second layer is 7 cm to 10 cm; a milling and planing material of the first layer is screened, particles with the diameter ranging from 10 mm to 31.5 mm are mixed with emulsified asphalt, cement and electric furnace slag for regeneration; and a milling and planing material of the second layer is crushed, and particles with the diameter ranging from 10 mm to 20 mm are screened and collected and then mixed with fine grains of the milling and planing material of the first layer, the cement, common asphalt, lime and a concrete admixture for regeneration. By the adoption of the technology, the milling and planing materials can be fully recycled with the low cost, and meanwhile the road paving requirement can be we