Wilson 1-1/2" Class II Baserock
Wilson 1-1/2" Class II Baserock is a crushed, well-graded blend of aggregates. 1-1/2" Class II baserock is designed to provide additional stability over 3/4" baserock. When properly compacted it provides an excellent base to concrete and asphalt, or can be used alone as a driveway or pathway. Graniterock 1-1/2" Class II Baserock meets the specifications of Cal Trans Section 26-1. This material is typically gray in color.
ASTM Properties
| Sand Equivalent | Greater than or equal to 50 |
| "R" Value | Greater than or equal to 80 |
Sieve Analysis
| Inches | MM/UM | Grading* | Caltrans Section 26 |
|---|---|---|---|
| 2" | 50 mm | 100 | 100 |
| 1-1/2" | 37.5 mm | 99 | 90 - 100 |
| 1" | 25 mm | -- | -- |
| 3/4" | 19 mm | 72 | 50 - 85 |
| #4 | 4.75 mm | 40 | 25 - 45 |
| #30 | 600 um | 14 | 10 - 25 |
| #200 | 75 um | 6 | 2 - 9 |
*Grading results are typical
Branch Availability
-
- A.R. Wilson Quarry
- 1900 Quarry Road
- Aromas, CA 95004
- 831.768.2380
Wilson 1-1/2" Class II Baserock
