ABC_Specification.doc
DOC document 124 KB Posted
- Attached to
- Aggregate Buys Federal contract opportunity
- Solicitation number
- FA4861-15-Q-B033
About this file
This attachment is the required specifications and gradation for the base course.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Q_and_As.pdf | ||
| 0_5_in_aggregate_specs.xlsx | XLSX spreadsheet | |
| 3-8_in_aggregate_specs.xlsx | XLSX spreadsheet | |
| RFQ_Aggregate.doc | DOC document |
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Text version
820 RED HORSE SQ requests the following specification for Aggregate Base Course for use on Perimeter Road:
a. Graded Crushed Aggregate Base Course--100 CBR. Stone is quarried from formations of granite, traprock, and limestone. Gravel is quarried from deposits of river or glacial origin. The stone and gravel are crushed and screened to produce a dense-graded crushed aggregate material meeting requirements of guide specifications. The percentage of loss shall not exceed 40 when tested in accordance with ASTM C-131. The material shall also meet the requirements listed in CEGS 02722 for flat and elongated particles, liquid limit and plasticity index, and magnesium sulfate soundness when tested in accordance with ASTM C 88. Gradation requirements for graded crushed aggregates are as follows:
b. Material Requirements. A complete investigation will be made to determine the source, quantity, and characteristics of available materials. The aggregate base course may consist of natural materials or processed materials, as discussed for flexible pavements. In general, the unbound aggregate base material will be a well-graded, high-stability material. All aggregate base courses to be placed beneath airfield rigid pavements will conform to the following requirements in addition to those requirements in base course guide specifications (sieve designations are in accordance with American Society for
Testing and Materials (ASTM E 11):
- Well-graded, coarse to fine.
- Not more than 85 percent passing the 2.0-millimeter (No. 10) sieve.
- Not more than 15 percent passing the 0.075-millimeter (No. 200) sieve.
- PI not more than 8 percent.
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