Research Article
Analysis of the Effect of Substitution Rate on the Mechanical Properties of Recycled Concrete Hollow Block
Table 8
Summary of the test results of compressive strength of recycled blocks with different substitution rates of MU7.5.
| Block | RCB-7.5-1 | RCB-7.5-2 | RCB-7.5-3 | RCB-7.5-4 | RCB-7.5-5 |
| Average compressive strength (MPa) | 7.59 | 6.75 | 5.39 | 5.13 | 4.69 | Standard deviation (MPa) | 1.1580 | 0.7781 | 0.3528 | 1.3265 | 1.4592 | Coefficient of variation | 0.1526 | 0.1153 | 0.0655 | 0.2586 | 0.3111 | Minimum compressive strength of single block (MPa) | 6.32 | 6.19 | 4.80 | 3.70 | 2.78 |
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