Wilson 1-1/2" x 3/4" Concrete Rock
Wilson 1-1/2" x 3/4" Concrete Rock is a clean, 100% crushed granite. This aggregate is produced daily at Wilson Quarry to meet ASTM C-33 Size #4 specifications as well as the American Railway Engineering Association (AREA) #4 Ballast Specifications. This product is also widely used in septic leach fields and drainage blankets. This type of rock is typically gray in color.
ASTM Properties
| Specific Gravity | 2.82 |
| Unit Weight | 100.7 lb / pcf |
Sieve Analysis
| Inches | MM/UM | Grading* | Caltrans Section 37 | ASTM C-33 #57 |
|---|---|---|---|---|
| 2" | 50 mm | 100 | 100 | 100 |
| 1-1/2" | 37.5 mm | 94 | 88 - 100 | 90 - 100 |
| 1" | 25 mm | 37 | 22 - 58 | 20 - 55 |
| 3/4" | 19 mm | 10 | 0 - 17 | 0 - 15 |
| 1/2" | 12.5 mm | 7 | -- | -- |
| 3/8" | 9.5 mm | 4 | 0 - 7 | 0 - 5 |
| #4 | 4.75 mm | 1 | -- | -- |
*Grading results are typical
Branch Availability
-
- A.R. Wilson Quarry
- 1900 Quarry Road
- Aromas, CA 95004
- 831.768.2380
Wilson 1-1/2" x 3/4" Concrete Rock
