A06_1-Attachment5-FS_SurfaceAggregate.pdf
PDF 122 KB Posted
- Attached to
- Carson National Forest HPCC Road Maintenance Federal contract opportunity
- Solicitation number
- 12970224Q0010
- Issued by
- Department of Agriculture Forest Service
About this file
This document contains a federal contract solicitation and related technical specifications. The solicitation is for road maintenance services on the Camino Real Ranger District of the Carson National Forest. The work will be performed in accordance with the specifications in the attachments. The project location is detailed in the Statement of Work and section C2. The project magnitude is between $100,000 and $250,000. The solicitation point of contact is Matthew Killian of the USDA Forest Service. The technical specifications outline the material requirements for aggregate to be used in subbase, base, surface courses, and screened aggregate. Specified tests and criteria include gradation, liquid limit, plastic limit, Los Angeles abrasion, sodium sulfate soundness, durability, fractured faces, and restrictions on organic matter and clay.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| A06_1-Attachment4-RoadMaintenanceTechSpecs.pdf | ||
| A06_1-Attachment6-DrainageDipDiagram.png | PNG image | |
| A06_0-RFQ-12970224Q0010-CarsonNFHPCCRoadMaint.pdf | ||
| A06_1-Attachment7-FirePlan.pdf | ||
| A06_1-Attachment1-FillableSOI.xlsx | XLSX spreadsheet | |
| A06_1-Attachment2-SOW.pdf | ||
| A06_1-Attachment3-Map.pdf | ||
| A06_1-Attachment8-DBWD-NM20240037_5Jan2024.pdf |
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Text version
703 - Aggregate 703.05_nat_us_08_14_2009
703.05 Subbase, Base, Surface Course, and Screened Aggregate.
(a) Subbase or base aggregate. Furnish hard, durable particles or fragments of crushed stone, crushed slag, or crushed gravel conforming the following:
(1) Gradation Table 703-2
(2) Liquid limit, AASHTO T 89 25 max.
(3) Plastic limit, AASHTO T 90 Nonplastic
(4) Los Angeles abrasion, AASHTO T 96 40% max.
(5) Sodium sulfate soundness loss (5 cycles), 12% max.
AASHTO T 104
(6) Durability index (coarse), AASHTO T 210 35 min.
(7) Durability index (fine), AASHTO T 210 35 min.
(8) Fractured faces, ASTM D 5821 50% min.
(9) Free from organic matter and lumps or balls of clay
Do not use material that breaks up when alternately frozen and thawed or wetted and dried.
Obtain the aggregate gradation by crushing, screening, and blending processes as necessary. Fine aggregate, material passing the No. 4 sieve, shall consist of natural or crushed sand and fine mineral particles.
(b) Surface course aggregate. Furnish hard, durable particles or fragments of crushed stone, crushed slag, or crushed gravel conforming the following:
(1) Gradation Table 703-3
(2) Liquid limit, AASHTO T 89 35 max.
(3) Plastic Index, AASHTO T 90 Table 703-3
a) If the percent passing the No. 200 sieve is less than 12% 2 to 9
b) If the percent passing the No. 200 sieve is greater than 12% Less than 2
(4) Los Angeles abrasion, AASHTO T 96 40% max.
(5) Sodium sulfate soundness loss (5 cycles), 12% max.
AASHTO T 104
(6) Durability index (coarse), AASHTO T 210 35 min.
(7) Durability index (fine), AASHTO T 210 35 min.
(8) Fractured faces, ASTM D 5821 75% min.
(9) Free from organic matter and lumps or balls of clay
Do not furnish material that contains asbestos fibers.
Obtain the aggregate gradation by crushing, screening, and blending processes as necessary. Fine aggregate, material passing the No. 4 sieve, shall consist of natural or crushed sand and fine mineral particles.
(c) Screened aggregate – Furnish hard, durable particles or fragments of stone, slag, or gravel conforming the following:
(1) Gradation Table 703-16
(2) Plastic Index, AASHTO T 90 Less than 9
(3) Los Angeles abrasion, AASHTO T 96 55% max.
(4) Free from organic matter and lumps or balls of clay.
Obtain the aggregate gradation by crushing, screening, and blending processes as necessary.
Table 703-3 Limits for
Surface Course Gradation and Plasticity Index
Sieve Size Percent by Mass Passing
Designated Sieve
(AASHTO T 27 & T 11)
1 inch 100
3/4 inch 97 - 100
3/8 inch 68 - 85
No. 4 45 - 64
No. 16 25 - 42
No. 40 16 - 29
No. 200 8-12 12-18 Plasticity index
(PI)* 5-9 2-5
If desired, off-site clay soil may be used to meet indicated limits or 2% bentonite* maybe added by weight when there at least 8% No 200 and low or no PI
| 703 - Aggregate |
| 703.05 Subbase, Base, Surface Course, and Screened Aggregate. |
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