Used for various backfill and bedding applications as well as underneath concrete slabs or ground cover for gravel driveways, this angular and durable rock meets a core need on many construction projects.
| ASTM C136 / AASHTO T27 | |
|---|---|
| Sieve Size | % Passing* |
| AASHTO M145 | |
| ASTM D4791 | Ratio= | 5:1 |
| 37.5 mm (1-1/2") | 100 |
| 25.0 mm (1") | 100 |
| 19.0 mm (3/4") | 99 |
| 12.5 mm (1/2") | 68 |
| 9.5 mm (3/8") | 52 |
| 4.75 mm (No.4") | 10 |
| 2.36 mm (No. 8) | 5 |
| 0.300 mm (No.50) | 3 |
| 0.150 mm (No.100) | 3 |
| 0.075 mm (No.200) | 2.3 |
| ASTM | AASHTO | Physical Properties |
Result* |
|
|---|---|---|---|---|
| C 29 | T19 | Unit Weight | Unit Weight, lbs./cu.ft. | 94 |
| Voids | 41% | |||
| Type | Rodded | |||
| D4318 | T89/90 | Liquid/Plastic Limit | Liquid Limit | 0 |
| Plastic Limit | 0 | |||
| Plasticity Index | NP | |||
| C131 | T96 | L.A. Abrasion | Small Coarse Loss | 20% |
| Grading/Revolutions | B/500% | |||
| C 127 | T85 | Coarse Specific Gravity & Absorption | Bulk Specific Gravity (dry) | 2.535 |
| Bulk Specific Gravity, SSD | 2.570 | |||
| Apparent Specific Gravity | 2.626 | |||
| Absorption | 1.4% | |||
| C 88 | T104 | Soundness | Coarse Soundness Loss | 1.1% |
| Sodium No. of Cycles | 5 | |||
| Fine Soundness Loss | % | |||
| Magnesium No. of Cycles | % | |||
| C40 | T21 | Organic Impurities | Coarse Aggregate | 0.0% |
| C142 | T112 | Clay / Friable Particles | Coarse Aggregate | 0.0% |
| Fine Aggregate | % | |||
| C123 | T113 | Lightweight Pieces | Coarse Aggregate | 0.0% |
| Fine Aggregate | % | |||
| D5821 | Fractured Face | 1 or 2 Faces | 1 = 100 | |
| Fractured Face, % | 2 = 100 | |||
| D2487 | Soil Classification | Group Symbol | GP | |
| Group Name | Poorly Graded Gravel | |||