Sieve Results
| ASTM C136 / AASHTO T27 | |
|---|---|
| Sieve Size | % Passing* |
| 100 mm (4") | 100 |
| 37.5 mm (1-1/2") | 100 |
| 25.0 mm (1") | 36 |
| 19.0 mm (3/4") | 6 |
| 12.5 mm (1/2") | 3 |
| 9.5 mm (3/8") | 2 |
| 4.75 mm (No.4") | 2 |
| 2.36 mm (No. 8) | 1 |
| 0.075 mm (No.200) | 1 |
Rock – Unwashed, 2”
Used for many of the same drainage and concrete functions as the smaller diameter ¾” rock, but where a larger and coarser rock is specified or desired.
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Test Results
| ASTM | AASHTO | Physical Properties |
Result* |
|
|---|---|---|---|---|
| C 29 | T19 | Unit Weight | Unit Weight, lbs./cu.ft. | 93 |
| Voids | 43% | |||
| Type | Rodded | |||
| ASTM C535 | L.A. Abrasion | large Coarse Loss | 20% | |
| Grading/Revolutions | 3/1000%% | |||
| C 127 | T85 | Coarse Specific Gravity & Absorption | Bulk Specific Gravity (dry) | 2.55 |
| Bulk Specific Gravity, SSD | 2.582 | |||
| Apparent Specific Gravity | 2.634 | |||
| Absorption | 1.3% | |||
| C 88 | T104 | Soundness | Coarse Soundness Loss | 1.5% |
| Sodium No. of Cycles | 5 | |||
| Fine Soundness Loss | % | |||
| Sodium No. of Cycles | % | |||
| D2487 | Soil Classification | Group Symbol | ||
| Group Name | QUARTZITE | |||