哈大铁路客运专线TJ-2高性能混凝土用砂质量监控  

Quality Control on High Performance Cement Sand

作　　者：张晓洲 

机构地区：[1]西安铁一院工程咨询监理有限责任公司,西安710065

出　　处：《铁道标准设计》2012年第5期106-108,共3页Railway Standard Design

摘　　要：针对哈大客运专线TJ-2标辽宁省铁岭地区天然河砂质量不稳定,级配差异大,以中砂、粗砂为主,细度模数在2.8～3.3,颗粒级配在Ⅰ区、Ⅱ区的特点,监理单位从料源地调查取样、配合比选配试验、搅拌站原材料进场质量监控、搅拌站混凝土生产过程监控四方面入手,采用抽检试验、见证试验、混凝土生产配料单的审核、生产过程的旁站等监理方法,不仅保证了高性能混凝土用砂的质量,而且充分利用了施工区段周边的合格砂源,降低了施工单位生产成本。With a view to such characteristics of Harbin-Dalian Passenger Dedicated Line TJ-2 project in Tieling area,Liaoning Province as unstable quality of natural river sand,big difference in gradation dominated by medium and coarse sand of fineness modulus 2.8~3.3,grain grade in zone Ⅰ and Ⅱ,the supervision unit takes such supervision activities as sampling test,witness testing,checking concrete material composition list,on-site supervision with respect to material source investigating and sampling,mixing ratio test,mixing plant raw material inspection,concrete mixing monitoring,which has not only guaranteed the quality of the sand to make high performance concrete,and also lower the cost by using the sand from nearby around the construction site.

关 键 词：哈大客运专线 高性能混凝土 砂 质量 监控 

分 类 号：U238[交通运输工程—道路与铁道工程] TU528.31[建筑科学—建筑技术科学]