您好,欢迎访问三七文档
当前位置:首页 > 办公文档 > 规章制度 > 水利混凝土试块强度计算评定表
抗压强度抗压强度抗压强度抗压强度(MPa)(MPa)(MPa)(MPa)112.9254973213.7265074313.7275175412.1285276510.3295377610.3305478710.8315579811.4325680<20MPa913.3335781≥20MPa103458821135598312366084(C.0.2-1)13376185(当R标≥20)(C.0.2-2)14386286(当R标<20)(C.0.2-3)153963871640648817416589(C.0.3-1)18426690(C.0.3-2)1943679120446892R标=10Rn=12.1Sn=1.500配筋情况21456993n=9Rmin=10.3Cv=/无(少)筋22467094√11.01>R标=10结论23477195√9.66≥0.80R标=824487296合格C.0.1同一强度等级试块28天龄期抗压强度的组数n≥30时,应符合下列要求:质量标准混凝土试块强度值序号序号序号Sn——n组试件强度的标准差,MPa。Rn-1.60Sn≥0.83R标试块评定结果一览表(C.0.2)0.850.95无筋(或少筋)混凝土强度保证率(P)配筋混凝土强度保证率(P)混凝土抗压强度的离差系数(Cv)R标——设计28天龄期抗压强度值,MPa;Rmin——最小抗压强度值,MPa;n——样本容量项目优良C.0.3同一强度等级混凝土试块28天抗压强度的组数5>n≥2时,混凝土试块强度应同时满足下列要求:Rn-1.60Sn≥0.80R标Rn>1.15R标Rmin≥0.95R标Rn-0.7Sn=Rn-1.60Sn=合格Rn——n组试件强度的平均值,MPa;<0.140.850.80.9<0.22混凝土试块强度计算表参数说明序号Rn-0.7Sn>R标<0.18任何一组试块强度不得低于设计值的<0.18C.0.2同一强度等级混凝土试块28天龄期抗压强度的组数30>n≥5时,混凝土试块强度应同时满足下列要求:0.9抗压强度抗压强度抗压强度抗压强度抗压强度抗压强度抗压强度抗压强度(MPa)(MPa)(MPa)(MPa)(MPa)(MPa)(MPa)(MPa)29.929.930.730.729.929.930.730.728.328.330.730.728.328.330.730.728.628.630.630.628.628.630.630.630.530.528.628.630.530.528.628.629.129.130.530.529.129.130.530.529.629.629.129.129.629.629.129.129.929.929.630.729.929.929.630.729.63129.930.629.63129.930.6<20MPa29.929.23128.629.929.23128.6≥20MPa313029.230.5313029.230.529.229.93029.129.229.93029.13030.729.930.73030.729.930.7(C.0.2-1)30.430.63030.630.430.63030.6(当R标≥20)(C.0.2-2)30.928.630.428.630.928.630.428.6(当R标<20)(C.0.2-3)30.930.530.930.530.930.530.930.531.428.330.927.231.428.330.927.23128.631.429.13128.631.431.4(C.0.3-1)31.330.53130.731.330.53131(C.0.3-2)31.229.131.330.631.229.131.331.3313131.228.6313131.231.2R标=25Rn=30.1Sn=1.298配筋情况30.730.73130.530.730.73130n=192Rmin=24.6Cv=0.043配筋30.630.630.731.330.630.630.729√24.60≥0.9Rn=22.5结论31.131.13531.231.131.13535√99.90≥9529.929.924.63129.929.924.624.6√0.0431<0.14Rn——n组试件强度的平均值,MPa;<0.22最小一组试块强度值=(配筋)强度保证率(P%)=n——样本容量项目0.850.9离差系数(Cv)=优良0.850.95<0.140.80.9<0.18Rn-1.60Sn≥0.83R标度应同时满足下列要求:混凝土试块强度计算表参数说明Rn-0.7Sn>R标<0.18任何一组试块强度不得低于设计值的无筋(或少筋)混凝土强度保证率(P)配筋混凝土强度保证率(P)混凝土抗压强度的离差系数(Cv)R标——设计28天龄期抗压强度值,MPa;Rmin——最小抗压强度值,MPa;C.0.3同一强度等级混凝土试块28天抗压强度的组数5>n≥2时,混凝土试块强度应同时满足下列要求:Rn-1.60Sn≥0.80R标Rn>1.15R标Rmin≥0.95R标试块评定结果一览表(C.0.1)混凝土试块强度值Sn——n组试件强度的标准差,MPa。优良合格C.0.1同一强度等级试块28天龄期抗压强度的组数n≥30时,应符合下列要求:质量标准C.0.2同一强度等级混凝土试块28天龄期抗压强度的组数30>n≥5时,混凝土试块强
本文标题:水利混凝土试块强度计算评定表
链接地址:https://www.777doc.com/doc-6478892 .html