Research Article
Effects of Particle Shapes and Sizes on the Minimum Void Ratios of Sand
Table 5
The predicted and the measured values of (emin)min.
| Sands | Mixtures (mm) | d (mm) | D (mm) | Equation (2) | Measured | Predicted |
| NS | 2–5∼0.1–0.25 | 0.175 | 3.5 | (emin)min = 0.54 ∗ {1 − exp(−(d/d)/0.0691)} | 0.305 | 0.278 | 2–5∼0.25–0.5 | 0.375 | 0.426 | 0.425 | 2–5∼0.5–1 | 0.75 | 0.502 | 0.516 | 2–5∼1-2 | 1.5 | 0.550 | 0.539 | 1-2∼0.1–0.25 | 0.175 | 1.5 | 0.425 | 0.440 | 1-2∼0.25–0.5 | 0.375 | 0.517 | 0.525 | 1-2∼0.5–1 | 0.75 | 0.537 | 0.540 |
| DS | 2–5∼0.1–0.25 | 0.175 | 3.5 | (emin)min = 0.54 ∗ {1 − exp(−(d/d)/0.0721)} | 0.355 | 0.270 | 2–5∼0.25–0.5 | 0.375 | 0.425 | 0.418 | 2–5∼0.5–1 | 0.75 | 0.505 | 0.512 | 2–5∼1-2 | 1.5 | 0.531 | 0.539 | 1-2∼0.1–0.25 | 0.175 | 1.5 | 0.435 | 0.433 | 1-2∼0.25–0.5 | 0.375 | 0.496 | 0.523 | 1–2∼0.5–1 | 0.75 | 0.528 | 0.539 |
| FS | 1-2∼0.1–0.25 | 0.175 | 1.5 | (emin)min = 0.54 ∗ {1 − exp(−(d/d)/0.1168)} | 0.346 | 0.342 | 1-2∼0.25–0.5 | 0.375 | 0.450 | 0.476 | 1-2∼0.5–1 | 0.75 | 0.503 | 0.533 |
| B1 & C4 | 3∼0.9 | 0.9 | 3 | (emin)min = 0.54 ∗ {1 − exp(−(d/d)/0.2165)} | 0.402 | 0.405 | B1 & C3 | 3∼1.5 | 1.5 | 0.482 | 0.486 | B1 & C2 | 3∼2.1 | 2.1 | 0.538 | 0.519 | B2 & C3 | 2.1∼1.5 | 1.5 | 2.1 | 0.525 | 0.520 | B2 & C4 | 2.1∼0.9 | 0.9 | 0.452 | 0.466 | B1 & B4 | 3∼0.9 | 0.9 | 3 | (emin)min = 0.54 ∗ {1 − exp(−(d/d)/0.2417)} | 0.385 | 0.384 | B1 & B3 | 3∼1.5 | 1.5 | 0.481 | 0.472 | B1 & B2 | 3∼2.1 | 2.1 | 0.532 | 0.510 |
| C1 & C4 | 3∼0.9 | 0.9 | 3 | (emin)min = 0.54 ∗ {1 − exp(−(d/d)/0.1871)} | 0.422 | 0.431 | C1 & C3 | 3∼1.5 | 1.5 | 0.491 | 0.503 | C1 & C2 | 3∼2.1 | 2.1 | 0.508 | 0.527 | C2 & C3 | 2.1∼1.5 | 1.5 | 2.1 | 0.518 | 0.528 | C2 & C4 | 2.1∼0.9 | 0.9 | 0.440 | 0.485 | C3 & C4 | 1.5∼0.9 | 0.9 | 1.5 | 0.482 | 0.518 |
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