混凝土配合比台帐(kg/m3)修订日期:2010年06月14日编号混凝土标记水泥PO4矿粉II级粉煤灰水外加剂(LCX-B)中砂卵石5~31.5mm水胶比砂率(%)表观密度(kg/m3)7天强度MPa28天强度MPaG001AC10-180-GD31.51304565168-77911680.7040235511.316.2G002AC15-180-GD31.51414985180-76111420.6540235814.021.3G003AC20-180-GD31.5(泵送)16357651573.574711670.5539236017.226.4G004AC20-150-GD31.5(自卸)1986801523.067912600.5735236015.824.2G005AC25-180-GD31.5(泵送)19065901725.370011430.5038236520.331.2G006AC25-160-GD31.5(自卸)2127301513.567212530.5235236519.229.5G007AC30-180-GD31.5(泵送)21273851705.367811540.4637237723.536.2G008AC30-150-GD31.5(自卸)2317901493.765012640.4834237722.234.1G009AC35-180-GD31.5(泵送)23481901705.366611340.4237238028.043.1G010AC35-160-GD31.5(自卸)2538701504.466012260.4435238027.041.6G011AC40-180-GD31.525387951675.865611160.3837238031.348.2G012BC30P8-180-GD31.54.44(JN)69211300.4538237723.736.5G013BC25P6-180-GD31.54.02(JN)70711550.4938236520.331.3G014BC30P6-180-GD31.54.1(JN)71011590.4538237523.536.2G015BC30钢纤维-180-GD31.54.566311780.4836237022.835.0编号混凝土标记水泥II级粉煤灰水外加剂中砂卵石5~31.5mm水胶比砂率(%)表观密度(kg/m3)7天强度MPa28天强度MPaG016AC15细-180-GD152.26761254(瓜子片)0.6635235513.821.2G017AC20细-180-GD153.96611228(瓜子片)0.5535235817.026.2G018AC25细-180-GD154.76471202(瓜子片)0.5135236018.929.1G019AC25碎石-180-GD31.55.06861119(碎石)0.5038236520.331.3G020AC30碎石-180-GD31.54.76881122(碎石)0.4638237023.736.5G021AC35(碎石)-180-GD31.55.37041101(碎石)0.4239237528.543.9G022BC35P6-180-GD31.54.6(JN)70011420.4138238027.041.5G023AC40(碎石)-180-GD31.53.2(LCX-9)6951087(碎石)0.3839238531.348.2G024AC45(碎石)-180-GD31.53.7(LCX-9)6421141(碎石)0.3639238534.853.5G025AC50(碎石)-180-GD31.53.8(LCX-9)6971046(碎石)0.3440239038.759.5G026AC60(碎石)-180-GD31.54.9(LCX-9)6961043(碎石)0.3040242053.569.5G027砂浆/1420///2200//G028C05水稳/7001310/3522255.5/G029BC25早强-180-GD31.55.367811540.4637237720.932.2G030BC40UEA-180-GD31.55.8+UEA3264410960.3837238030.246.5G031BC30早强-180-GD31.55.466111250.4237238026.838.5G032BC45P10-180-GD31.55.3(JN)64211410.3639238534.352.8G033BC40P10-180-GD31.55.865611160.3837238032.049.2备注:1、表中如未特别注明,石子为卵石,外加剂为LCX-B型泵送剂。2、JN为高效复合防水剂,LCX-9为高效减水剂,UEA为膨胀剂。两者的允许掺量不同:粉煤灰在水泥中的允许掺加量为20-40%,但在混凝土中最大掺量一般不超过35%;磨细矿粉在水泥或混凝土中的掺加量则可达20-70%。一些欧洲国家甚至允许掺到85%。两者在混凝土中的掺加方式不同:粉煤灰一般采用“超量”取代水泥方式以保证混凝土强度达标;磨细矿粉则通常采用“等量”取代水泥方式配制混凝土,其强度仍然可以满足设计要求。1、“单掺”矿粉时,可按等量取代原则并根据以下方法确定矿粉的合适掺量:(a)对于地上结构以及有较高早期强度要求的混凝土结构,掺量一般为20-30%;(b)对于地下结构、强度要求中等的混凝土结构,掺量一般为30-50%;(c)对于大体积混凝土或有严格温升限制的混凝土结构,掺量一般为50-65%;(d)对于有较高耐久性能要求的特殊混凝土结构(如海工防腐蚀结构、污水处理设施等),掺量可达50-70%。2、采用“双掺”粉煤灰和矿粉时,由于受粉煤灰掺量和质量波动的影响很大,只能根据上述基本原则,通过具体试验确定各组份正确的掺加量