工程名称:建工搅拌站结构部位配合比编号验收组数n=同一验收批强度平均值 mfcu =同一验收批强度标准差 Sfcu=18338.91.17施工单位:混凝土强度等级养护条件合格判定系数fcu,min=λ1=λ2=36.1C30标养0.950.85验收批各组试件强度值（Mpa)39.038.639.538.037.839.339.639.239.738.136.139.738.737.738.238.938.939.839.040.939.739.137.739.238.939.737.839.637.939.539.239.639.239.437.439.838.039.038.439.638.239.540.739.339.240.237.539.837.339.937.940.238.238.339.138.939.438.436.939.340.840.437.439.739.039.340.339.939.537.337.439.639.737.338.739.740.039.940.039.537.037.639.439.237.838.639.240.040.239.940.137.536.740.341.236.939.138.637.740.138.939.737.038.339.337.337.739.639.137.339.740.137.137.238.439.639.738.839.738.937.439.839.636.837.238.939.540.537.738.738.137.639.539.537.036.739.137.238.537.038.239.137.840.039.337.336.837.837.838.337.539.239.039.439.940.639.638.840.436.539.239.338.939.239.640.039.239.037.438.936.845.238.238.838.139.340.439.639.238.339.338.040.1统计方法标准差已知统计法mfcu ≥fcu,k+λ标准差未知统计法fcu,min≥λ21非统计方法mfcu≥fcu,k+0.7σ0fcu,min≥fcu,k-0.7σ0当强度等级≤C20时fcu,min≥0.85fcu,k当强度等级＞C20时fcu,min≥0.90fcu,k·Sfcumfcu≥1.15fcu,k·fcu,kfcu,min≥0.95fcu,k依据标准：GB/T50107-2010技术负责人审核试验试验室章
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