Research Article
Performance of Ecological Pervious Concrete Prepared with Sandstone/Limestone-Mixed Aggregates
Table 6
Individual strength of each ecological pervious concrete sample.
| | 7 d strength 1 | 7 d strength 2 | 7 d strength 3 | 7 d mean strength | 28 d strength 1 | 28 d strength 2 | 28 d strength 3 | 28 d mean strength |
| | 0% sandstone aggregate | 4.9 | 4.5 | 5.1 | 4.8 | 6.3 | 6.5 | 7.2 | 6.7 | | 25% sandstone aggregate | 4.4 | 4.2 | 4.5 | 4.4 | 5.2 | 6.1 | 5.9 | 5.7 | | 50% sandstone aggregate | 3.5 | 3.2 | 2.3 | 3.0 | 4.3 | 4.2 | 3.2 | 3.9 | | 75% sandstone aggregate | 3.7 | 3 | 2.8 | 3.2 | 3.8 | 4.2 | 4.0 | 4.0 | | 100% sandstone aggregate | 3.5 | 2.8 | 2.3 | 2.9 | 3.6 | 3.9 | 4.2 | 3.9 |
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