Research Article
Effect of the Key Mixture Parameters on Shrinkage of Reactive Powder Concrete
Table 4
Results of the ANOVA of the ultimate shrinkage (90-day) data.
| | Factor | Type | Levels | Values |
| | (w/b ratio) | Fixed | 3 | 0.150, 0.175, and 0.200 | | (cement content) | Fixed | 3 | 1000, 1100, and 1200 Kg/m3 | | (SF content) | Fixed | 3 | 15, 20, and 25% of cement content |
| | Analysis of variance (ANOVA), using adjusted SS for tests |
| | Source | Degree of freedom (DF) | Sum squares (SS) | Adjusted SS | Adjusted mean sum squares (MS) | -ratio | Probability of no significance () |
| | 2 | 67027.4 | 67027.4 | 33513.7 | 358.68 | 0.000 | | 2 | 62146.7 | 62146.7 | 31073.4 | 332.56 | 0.000 | | 2 | 3029.3 | 3029.3 | 1514.6 | 16.21 | 0.002 | | 4 | 2353.7 | 2353.7 | 588.4 | 6.30 | 0.014 | | 4 | 2332.9 | 2332.9 | 583.2 | 6.24 | 0.014 | | 4 | 313.6 | 313.6 | 78.4 | 0.84 | 0.537 | | Error | 8 | 747.5 | 747.5 | 93.4 | — | — | | Total | 26 | 137951.0 | — | — | — | — |
| | = 9.66623, -Sq = 99.46%, -Sq(adj) = 98.24% |
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