摘要
为探讨宜巴太阳岭砂岩洞渣用作混凝土集料的可行性,对母岩抗压饱和强度、物理化学成分、碱活性进行分析,采用简化砂、石联产工艺生产出砂岩碎石、机制砂并对其基本技术指标进行检测。研究表明,该砂岩洞渣为硬质砂岩,加工的碎石、机制砂可满足混凝土集料技术指标要求。以宜巴高速公路为依托,成功地将砂岩集料配制的混凝土应用于隧道二衬与桥梁桩基、墩柱。
In order to explore the application feasibility of yi-ba-sun-ridge tunnel muck slag in concrete aggregate,the saturated compressive strength,the alkali aggregate reactivity and the physical and chemical composition of source rock were analyzed.The basic specifications of sandrock grave and manufactured sand that made from sandstone tunnel muck using simplified sand and stone cogeneration technology were detected.The results indicate that the manufactured grave and sand can meet the technical requirements of concrete aggregates.Base on Yi-Ba highway,sandstone aggregates are successfully applied to the concrete of tunnel secondary lining and pile foundation and abutment of bridges.
出处
《交通科技》
2013年第2期126-129,共4页
Transportation Science & Technology
基金
交通部西部交通建设科技项目(2009-318-811-082)资助
关键词
砂岩
隧道洞渣
碎石
机制砂
混凝土
sandrock
tunnel muck
grave
manufactured sand
concrete
