Class 6 Base Course | 1 ½" Dry Screened Rock | Recycled Asphalt Pavement
Class 6 Base Course October 2010
AASHTO T 27, Sieve Analysis of Fine and Course Aggregates
| Sieve Size | % Passing | CDOT
Grading Specifications % Passing |
| 19.0 mm (3/4") | 100 | 100 |
| 12.5 mm (1/2") | 91 | - |
| 9.5 mm (3/8") | 81 | - |
| 4.75 mm (No. 4) | 61 | 30-65 |
| 2.36 mm (No. 8) | 49 | 25-55 |
| 1.18 mm (No. 16) | 36 | - |
| 600 um (No. 30) | 25 | - |
| 300 um (No. 50) | 16 | - |
| 150 um (No. 100) | 10 | - |
| 75 um (No.200) | 6.6 | 3-12 |
AASHTO
T 96, Resistance to Degradation of Small Size Coarse
Aggregate
by Abrasion and Impact in the Los Angeles Machine
| Sample I.D | Grading | Weight Before,g | Weight After,g | % Loss |
| Class 6 | D | 5000.0 | 2915 | 36 |
AASHTO T 89, Determining the Liquid Limits of Soils
| Sample I.D | Liquid Limit |
| Class 6 | NL |
AASHTO T 90, Determining the Plastic Limits and Plasticity Index of Soils
| Sample I.D | Plastic Limit | Plasticity Index |
| Class 6 | Non-Plastic | NP |
AASHTO T 180, Moisture-Density Relations of Soils
| Sample I.D | Maximum Density, pcf | Optimum Moisture, % |
| Class 6 | 118.5 | 13.0 |
1 1/2" Dry Screened Rock
| % Passing | ||||||
| Sample | 1 ½ Inch | 1 Inch | ¾ Inch | ½ Inch | 3/8 Inch | No. 4 |
| 1 ½ inch | 100 | 66 | 29 | 3 | 2 | 1 |
Recycled Asphalt Pavement 3/02/06
| Sieve Size | % Passing | CDOT
Grading E Specifications % Passing |
| 1 ½" | 100 | - |
| 1" | 100 | - |
| ¾" | 100 | 100 |
| ½" | 92 | - |
| 3/8" | 85 | - |
| No. 4 | 61 | 38-72 |
| No. 8 | 44 | 25-58 |
| No. 16 | 32 | - |
| No. 30 | 23 | - |
| No. 50 | 16 | - |
| No. 100 | 10 | - |
| No. 200 | 6.1 | 3-12 |
| AC Content, %* | 4.6 | - |
* Asphalt cement content does not reflect an ash correction or a retention factor.