Cement stabilized macadam layer for highway subgrade and preparation method and application thereof

• Main Authors: TIAN GUIPING, CUI YUANSHENG, FANG KUIZHEN, YANG ZHIBO, ZHANG MING, QIAO KUNYUAN, WANG DONGMIN, LIU ZE, YUAN NING, LIU HU, HUANG XIAOYAN
• Format: Patent
• Language: Chinese; English
• Published: 02.10.2020
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; 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; LIME, MAGNESIA; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention provides a cement stabilized macadam layer for a highway subgrade; the cement stabilized macadam layer comprises coal gangue aggregate, cement and water, wherein the coal gangue aggregate comprises 53-63 parts of coal gangue coarse aggregate and 28-38 parts of a coal gangue fine aggregate, 3-9 parts of cement and 4-8 parts of water, and the coal gangue aggregate is derived from tunneling coal gangue. According to the cement stabilized macadam layer, industrial solid waste coal gangue is adopted to completely replace natural aggregate; when used for highway pavement base engineering, the macadam layer has good pressure resistance, can also meet the road construction demand on the basis of meeting the road construction requirements, greatly reduces the exploitation and application of natural resources, and has good economic benefits and environmental protection benefits. 本发明提供了一种公路路基用水泥稳定碎石层，其制备原料包括：煤矸石集料、水泥和水，其中煤矸石集料为煤矸石粗集料53-63份和煤矸石细集料28-38份，水泥为3-9份，水为4-8份，其中，所述煤矸石集料来源于掘进煤矸石。该水泥稳定碎石层采用工业固体废弃物煤矸石