Research Article
Effect of Expansive Admixtures on the Shrinkage and Mechanical Properties of High-Performance Fiber-Reinforced Cement Composites
Table 4
Summary of compressive strength test results.
| EXA (type) | Mixture type | Maximum strength (MPa) | Strain at maximum strength (%) | Elastic modulus (GPa) | No. 1 | No. 2 | No. 3 | Ave. | No. 1 | No. 2 | No. 3 | Ave. | No. 1 | No. 2 | No. 3 | Ave. |
| None | Mor-0 | 85 | 87 | 78 | 84 | 0.55 | 0.66 | 0.46 | 0.56 | 26.5 | 24.9 | 26.5 | 26.0 | PE1.5-0 | 75 | 71 | 70 | 72 | 0.66 | 0.55 | 0.61 | 0.61 | 23.5 | 21.4 | 21.5 | 22.1 |
| CSA-K (Type 1) | Mor-10 | 97 | 100 | 96 | 98 | 0.77 | 0.71 | 0.67 | 0.72 | 24.1 | 24.5 | 24.4 | 24.3 | PE1.5-8 | 81 | 77 | 82 | 80 | 0.65 | ā | 0.63 | 0.64 | 22.9 | ā | 23.0 | 23.0 | PE1.5-10 | 85 | 84 | 83 | 84 | 0.70 | 0.65 | 0.69 | 0.68 | 22.0 | 23.5 | 22.4 | 22.7 | PE1.5-12 | 77 | 81 | 78 | 79 | 0.70 | 0.73 | 0.62 | 0.68 | 20.7 | 20.9 | 21.0 | 20.9 | PE1.5-14 | 69 | 70 | 84 | 74 | 0.54 | 0.42 | 0.68 | 0.55 | 22.4 | 22.0 | 21.9 | 22.1 |
| CSA-J (Type 2) | Mor-10 | 95 | 97 | 92 | 95 | 0.68 | 0.75 | 0.67 | 0.68 | 25.4 | 25.2 | 25.8 | 25.5 | PE1.5-8 | 77 | 78 | 76 | 77 | 0.76 | 0.72 | 0.71 | 0.73 | 20.9 | 21.1 | 21.5 | 21.2 | PE1.5-10 | 73 | 75 | 76 | 75 | 0.71 | 0.65 | 0.76 | 0.71 | 20.5 | 21.3 | 20.1 | 20.6 | PE1.5-12 | 69 | 76 | 72 | 72 | 0.79 | 0.88 | 0.75 | 0.80 | 20.6 | 19.6 | 19.5 | 19.9 | PE1.5-14 | 67 | 68 | 61 | 65 | 0.71 | 0.65 | 0.53 | 0.63 | 18.6 | 17.6 | 18.1 | 18.1 |
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