Research Article
Experimental Study and Prediction Model of the Flexural Strength of concrete Containing Fly Ash and Ground Granulated Blast-Furnace Slag
Table 4
Flexural strength of concrete at various ages.
| | Specimen number | Flexural strength (MPa) | | 1 d | 3 d | 7 d | 14 d | 28 d | 45 d |
| | S1 | 2.55 (0.01) | 4.02 (0.12) | 5.01 (0.14) (0.06) | 5.72 (0.10) | 6.20 (0.06) | 6.47 (0.06) | | S2 | 3.05 (0.03) | 4.82 (0.14) | 5.94 (0.12) | 6.49 (0.15) | 6.78 (0.09) | 6.99 (0.06) | | S3 | 3.07 (0.09) | 4.99 (0.15) | 5.89 (0.10) | 6.50 (0.07) | 7.10 (0.20) | 7.37 (0.18) | | S4 | 2.91 (0.01) | 4.51 (0.08) | 5.40 (0.14) | 5.95 (0.07) | 6.60 (0.06) | 6.86 (0.14) | | S5 | 3.19 (0.02) | 4.73 (0.10) | 5.64 (0.15) | 6.19 (0.14) | 6.75 (0.12) | 7.02 (0.20) | | S6 | 3.07 (0.11) | 4.57 (0.06) | 5.48 (0.10) | 5.98 (0.07) | 6.56 (0.10) | 6.80 (0.09) | | S7 | 2.90 (0.04) | 4.23 (0.05) | 5.62 (0.12) | 6.02 (0.14) | 6.63 (0.15) | 6.77 (0.15) | | S8 | 2.79 (0.06) | 4.16 (0.07) | 5.27(0.14) | 5.67 (0 .07) | 5.93 (0.09) | 6.25 (0.06) | | S9 | 2.94 (0.03) | 4.49 (0.06) | 5.23 (0.06) | 5.87 (0.15) | 6.43 (0.14) | 6.67 (0.20) | | S10 | 2.63 (0.02) | 3.68 (0.09) | 4.28 (0.08) | 5.03 (0.08) | 5.80 (0.08) | 6.40 (0.12) | | S11 | 1.42 (0.01) | 3.41 (0.06) | 4.63(0.14) | 5.45 (0.14) | 6.01(0.09) | 6.26 (0.09) | | S12 | 1.64 (0.02) | 3.42 (0.04) | 4.53 (0.10) | 5.27 (0.10) | 5.73 (0.14) | 5.99 (0.12) | | S13 | 1.67 (0.01) | 3.37 (0.06) | 4.37 (0.09) | 4.98 (0.07) | 5.67 (0.15) | 6.00 (0.14) | | S14 | 1.95 (0.03) | 3.73 (0.07) | 4.63(0.14) | 5.29 (0.06) | 5.66 (0.06) | 5.99 (0.10) | | S15 | 2.20 (0.05) | 3.95 (0.03) | 4.87 (0.10) | 5.23 (0.07) | 5.80 (0.09) | 6.07 (0.20) | | S16 | 2.13 (0.04) | 3.50 (0.05) | 4.32 (0.08) | 4.83 (0.10) | 5.38 (0.08) | 5.73 (0.08) |
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