C25-C30等各种标号混泥土配合比

单位：1m3混凝土序号项目单位普通混凝土碎（砾）石最大粒径（mm）20混凝土标号1520253035404550水泥标号325325425325425325425425525425525525525123456789101112131水泥kg2943542974123434743904363834824244645042中（粗）砂m30.500.480.500.460.490.440.470.460.480.450.470.460.443碎（砾）石m30.880.840.880.800.850.770.820.800.840.790.810.790.774片石m3—————————————续上表单位：1m3混凝土序号项目单位普通混凝土碎（砾）石最大粒径（mm）40混凝土标号10152025303540水泥标号325325425325425325425325425425525425525141516171819202122232425261水泥kg2552822553382733903184323654063504473872中（粗）砂m30.520.510.520.490.520.470.500.460.490.480.500.470.493碎（砾）石m30.910.890.910.850.900.820.870.810.850.830.870.820.854片石m3—————————————续上表单位：1m3混凝土序号项目单位普通混凝土水下混凝土防水混凝土泵送混凝土片石混凝土碎（砾）石最大粒径（mm）4080402080混凝土标号4550101520202525152015水泥标号525525325325325325425325425425325325325272829303132333435363738391水泥kg4244612552773314463605154203653444112352中（粗）砂m30.470.460.520.520.490.470.530.450.500.490.600.570.443碎（砾）石m30.830.810.910.900.860.690.780.660.740.850.730.700.774片石m3————————————0.21续上表单位：1m3混凝土序号项目单位泵送混凝土碎（砾）石最大粒径（mm）2040混凝土标号202530354045501015水泥标号425325425325425425525425525525525325325404142434445464748495051521水泥kg3454743955314374844255304665065443003302中（粗）砂m30.600.550.580.530.570.560.580.540.560.550.540.620.613碎（砾）石m30.730.670.710.650.700.680.700.660.690.670.650.750.744片石m3—————————————续上表单位：1m3混凝土序号项目单位泵送混凝土碎（砾）石最大粒径（mm）40混凝土标号1520253035404550水泥标号425325425325425325425425525425525525525535455565758596061626364651水泥kg2983923174493664844094513894924264624982中(粗)砂kg0.620.580.610.560.600.560.580.570.590.560.580.570.563碎(砾)石m30.760.710.750.690.730.680.710.700.730.680.710.690.684片石m3—————————————注：(1)采用细砂配制混凝土时，每立方米混凝土的水泥用量增加4%；(2)表列各种混凝土标号的水泥用量，系按机器捣固计算，如果用人工捣固时，每立方米混凝土应增加水泥用量25kg；

(3)材料消耗数量已包括场内运输及操作损耗在内；(4)公路水下构造物每立方米混凝土水泥用量机械捣固不应少于240kg，人工捣固不应少于265kg