Z比分数在混凝土配制强度试验验证中的应用  

Application of Z-score to strength test verification of concrete mix-preparation

作　　者：仲新华[1,2] 马骅 楼梁伟[1,2] 王娟 李享涛[1,2] 裘智辉[1,2] 

机构地区：[1]中国铁道科学研究院铁道建筑研究所,北京100081 [2]高速铁路轨道技术国家重点实验室,北京100081 [3]邢台市邢衡高速公路管理处,河北邢台054000 [4]邢台市交通科学研究所,河北邢台054000

出　　处：《铁道建筑》2013年第4期149-151,共3页Railway Engineering

基　　金：中国铁道科学研究院基金项目(2011YJ87);河北省公路技术开发项目(XHKY2011-10)

摘　　要：对混凝土配制强度进行多方验证,既是混凝土质量控制的常用手段,也是建设管理的重要环节。长期以来,由于缺乏对多方验证检测结果进行科学评价的依据,常常引发对验证处置结果的争论。本文以某高速公路建设中3个施工单位实验室和3个监理单位实验室对相同的2个混凝土配合比进行验证的强度检测结果为依据,采用稳健Z比分数的方法,对强度检测结果进行统计分析。依据统计得出的实验室间的Z比分数ZB和实验室内Z比分数ZW,分别对施工单位和监理单位实验室的检测能力做出评价,并对评价结果为不满意或存疑的实验室提出处置建议。Validating the concrete strength in many ways is not only the common measure for concrete quality control but also an important part of construction management. Due to the lack of scientific evaluation basis for multi-verification test results, argument aroused by verification disposal results has often happened for a long time. Based on strength test results of 2 same concrete mix proportion verification in 3 construction units and 3 supervision laboratories of one high speed way construction,this paper adopted the robust Z ratio fraction method,made statistieal analysis for strength test results,got ZB which is the Z ratio fraction between the laboratories and ZW which is the Z ratio fraction inside the laboratory according to statistics, evaluated the test ability of construction and supervision units respectively, and put forward treatment suggestions for the dissatisfied or open laboratory.

关 键 词：Z比分数 混凝土强度 室间验证 室内验证 

分 类 号：TU528[建筑科学—建筑技术科学]