Mine roadway early strength concrete construction method

• Main Authors: ZHU YOUHENG, WU LONGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR

The invention relates to a mine roadway early-strength and high-strength concrete construction method, which comprises: cleaning a mine roadway base surface, paving a hard aggregate, paving early strength concrete, and other steps, wherein the mine roadway base surface cleaning requirements comprise that all impurities including mud, gravel, coal ash and the like are cleaned out until the hard base ground is exposed, the surface water is completely sucked out and no visible water exists on the base surface, the hard aggregate paving step comprises that a layer of stones with a particle size of 2-4 cm is uniformly paved on the cleaned base surface, and the early strength concrete paving step comprises that the paved early strength concrete is the concrete added with an early strength admixture and can achieve C20 after 24 h. With the construction method of the present invention, the tunneling speed in the mine roadway can be substantially improved. 本发明种矿井巷道早强高强混凝土的施工方法，该施工方法为：矿井巷道基面的清理、铺设硬骨料、铺设早强混凝土等步骤组成。所述的矿井