Ehhibit 4 Aggregate Specification - Grading E (Base).pdf
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- USFS Jack Creek Aggregate Crushing
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- 1267T020Q0046
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EXHIBIT 4
Aggregate Specification – Grading D (Base)
The material shall consist of stone, gravel, slag or other approved materials crushed to the required size and gradation. A filler of finely crushed stone, sand or other finely divided mineral matter shall be added as needed to meet gradation and plasticity index requirements.
The composite surfacing material shall be free of organic material and other deleterious materials.
The crushed material shall meet the gradation specifications for type D (Base) material found in the
Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects FP-14.
Percentage by mass passing designated Sieve (AASHTO T 27 and T 11)
Sieve Designation Percent Passing
1 inch 100
¾ inch 86-100 (6)
3/8 inch 51-82 (6)
No. 4 36-64 (6)
No. 40 12-26 (4)
No. 200 4.0-7.0 (3)
( ) the value in the parentheses is the allowable deviation (+) from the target values.
Liquid Limit (AASHTO T 89) – 35 max.
Plasticity Index (AASHTO T 90) – 0-13
| Cover |
| SECTION C - Performance Work Statement |
| SECTION J - Technical Exhibits |
| EXHIBIT 1 - Project Location Map |
| EXHIBIT 2 - Pit Site Plan |
| EXHIBIT 3 - Gravel Crushing Task Statement and Quality Standards |
| EXHIBIT 4 - Aggregate Specification, E (Base) |
| EXHIBIT 5 - Quality Assurance Plan (QASP) |
| EXHIBIT 6 - Performance Requirements Summary (PRS) |
| EXHIBIT 7 - Sample Daily Production Log |
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