【作者】 罗树琼； 管学茂； 杨雷； 余洪汇；

【Author】 LUO Shuqiong,GUAN Xuemao,YANG Lei,YU Honghui(Faculty of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China)

【机构】 河南理工大学材料科学与工程学院；

【摘要】 在研制出以炉渣为骨料的矿用喷射混凝土基础上,研究了硅粉对炉渣喷射混凝土性能的影响。研究表明,硅粉增加了混凝土的粘聚性,降低了炉渣混凝土的分层度,显著改善了喷射混凝土与煤岩的粘结性能,提高了炉渣喷射混凝土的抗压强度、降低了混凝土的弯曲韧性,且由于硅粉的火山灰效应,优化了炉渣与水泥石的界面结构,提高了矿用喷射混凝土的抗氯离子渗透性。更多还原

【Abstract】 On basis of mining shotcrete taken slag as aggregate been developed,influence of silica fume on properties of mining shotcrete was studied.Studies have shown that silica fume can increase the cohesion of concrete,reduce hierarchical degrees of slag concrete,improve the bond properties of shorcrete and coal rock significantly,increase the compressive strength of shotcrete slag,reduce the flexural toughness of concrete,and due to effects of volcanic ash silica fume,the interface of slag and cement structure is optimized and mining shotcrete anti-chloride ion penetration is improved.更多还原