Washed angular rock used in concrete mix designs as well as gravel backfill where a very clean rock is specified.
| ASTM C136 / AASHTO T27 | |
|---|---|
| Sieve Size | % Passing* |
| 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") | 61 |
| 9.5 mm (3/8") | 34 |
| 4.75 mm (No.4") | 4 |
| 2.36 mm (No. 8) | 2 |
| 0.300 mm (No.50) | 1 |
| 0.075 mm (No.200) | 0.5 |
| ASTM | AASHTO | Physical Properties | Result* | |
|---|---|---|---|---|
| C 29 | T19 | Unit Weight | Unit Weight, lbs./cu.ft. | 99 |
| Voids | 39% | |||
| Type | Rodded | |||
| D4318 | T89/90 | Liquid/Plastic Limit | Liquid Limit | |
| Plastic Limit | ||||
| Plasticity Index | NO | |||
| C131 | T96 | L.A. Abrasion | Small Coarse Loss | 23% |
| Grading/Revolutions | B/500% | |||
| C 127 | T85 | Coarse Specific Gravity & Absorption | Bulk Specific Gravity (dry) | 2.624 |
| Bulk Specific Gravity, SSD | 2.653 | |||
| Apparent Specific Gravity | 2.701 | |||
| Absorption | 1.1% | |||
| C 88 | T104 | Soundness | Coarse Soundness Loss | 0.1% |
| Sodium No. of Cycles | 5 | |||
| Fine Soundness Loss | % | |||
| Magnesium No. of Cycles | % | |||
| C40 | T21 | Organic Impurities | Coarse Aggregate | Lighter Plate #1% |
| 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 | 1/2 | |
| Fractured Face, % | 90/89 | |||