强度与水胶比及粉煤灰掺量计算

R90=Rc/52.5*(82.51-86.96*W/C+F-21.49*F)
1.325714
R90=91-95.9*W/C+F-23.7*F R90 Rc/52.5 Rc 57.6 5Fra Baidu bibliotek.5 48 B 91 W/C+F -95.9 F -23.7
82.512953 -86.95596 -21.4896373 W/C+F 0.55 0.48 0.38 F 0.15 0.3 0.2 R Rc/R0 34.514 1.097143 38.784 1.13 41.296 0.914286