Materials used in developing test blends. The Solite® was blended to approximate the same particle size distribution as the other two stone types.
| Material used | Specific gravity (Gs) | % passing 38.1 mm sieve (1-5”) | % passing 25.4 mm sieve (1-0”) | % passing 12.7 mm sieve (0.5”) | Coefficient of uniformity (Cu) | Description |
|---|---|---|---|---|---|---|
| #2 Crushed limestone | 2.71 | 100 | 94.1 | 6.7 | 1.4 | All angular stone |
| #2 High friction aggregate | 2.66 | 100 | 98.8 | 3.2 | 1.34 | Round quarried gravel,oversized crushed and blended back, % limestone = 16% |
| Solite® | 1.50 | >90 | 83 | <5 | 2 | Exploded slate, very porous |
| Soil | 2.58 | — | 26.4 % sand | — | — | Shredded clay loam, pH = 5.25 |
| 40% silt | - dry bulk density = 1110 kg/m3 | |||||
| 33.6% clay | - Plastic limit = 20.5, liquid limit = 27.5 | |||||
| (USDA) | - Std. Proctor opt. density = 1674 kg/m3 |