混凝土配合比设计经验数据及原材料性能与选用(共14页).doc

精选优质文档-倾情为你奉上配合比设计一水灰比选用表水泥标号RC(2.5)32.5（35）42.5（45）52.532.5（35）42.5（45）52.5抗渗砼水泥320以上粉煤灰2.2水泥3.1砂子 2.65石子 2.67W =afce C (2-3)fcu,0+abfce 式中ab回归系数；fce水泥28d抗压强度实测值强度等级试配强度碎石A=0.46 B=0.07卵石A=0.48 B=0.33C1016.580.680.7C1521.580.620.680.58(0.61)0.7C2026.580.53(0.56)0.63(0.65)0.49(0.52)0.61(0.64)C2533.230.43(0.46)0.55(0.58)0.680.41(0.43)0.51(0.53)0.6C3038.230.38(0