Table 1 Mixture proportions of the specimens.
Type | Strength grade | W/C ratio % | Water kg/m3 | Cement kg/m3 | Fine aggregate kg/m3 | Coarse aggregate kg/m3 | Water reducer kg/m3 | Air entraining agent kg/m3 | Air content % |
|---|---|---|---|---|---|---|---|---|---|
A-1 | C50 | 0.32 | 150 | 465 | 764 | 1358 | 6.98 | 0.19 | 5.0 |
A-2 | C40 | 0.38 | 167 | 440 | 568 | 927 | 6.60 | 0.15 | 5.5 |
A-3 | C30 | 0.50 | 155 | 310 | 550 | 760 | 3.72 | 0.09 | 5.5 |
A-4 | C20 | 0.66 | 190 | 288 | 545 | 694 | 1.73 | 0.12 | 5.6 |