Table 7 Test results of hardened concrete.
From: Study on the Fluidity and Strength Properties of High Performance Concrete Utilizing Crushed Sand
Blending ratios of crushed sand (%) | S/a (%) | Compressive strength (MPa) | Splitting tensile strength (MPa) | ||||
|---|---|---|---|---|---|---|---|
3 days | 7 days | 28 days | 3 days | 7 days | 28 days | ||
0 | 39.0 | 47.7 | 50.4 | 63.1 | 3.89 | 4.29 | 5.20 |
37.5 | 42.4 | 47.8 | 62.9 | 3.62 | 3.87 | 4.97 | |
36.0 | 35.2 | 41.2 | 65.1 | 3.12 | 4.11 | 5.28 | |
30 | 38.0 | 42.1 | 47.7 | 60.6 | 3.13 | 3.62 | 4.90 |
36.5 | 35.5 | 49.4 | 59.9 | 3.17 | 3.38 | 4.89 | |
35.0 | 36.5 | 41.2 | 61.0 | 3.76 | 3.86 | 4.44 | |
50 | 39.0 | 44.0 | 48.2 | 62.2 | 4.20 | 4.48 | 4.62 |
37.5 | 41.5 | 47.8 | 64.9 | 3.99 | 4.03 | 4.54 | |
36.0 | 39.9 | 46.8 | 62.4 | 3.07 | 4.12 | 4.89 | |
70 | 42.0 | 43.1 | 54.6 | 64.0 | 3.89 | 4.37 | 4.88 |
40.5 | 39.7 | 48.1 | 63.9 | 3.87 | 4.37 | 4.98 | |
39.0 | 38.2 | 48.7 | 65.8 | 3.11 | 3.61 | 5.29 | |
100 | 42.0 | 49.6 | 55.6 | 64.7 | 2.81 | 4.10 | 4.28 |
42.0 | 50.0 | 56.1 | 65.8 | 3.94 | 4.20 | 4.92 | |
40.5 | 47.4 | 54.5 | 69.9 | 3.86 | 4.27 | 4.80 | |