C04b Roads Material FP-24 Supplemental Specs.pdf
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- Apache Zone Aggregate Supply
- Solicitation number
- 1240LP26Q0173
About this file
This document is a Forest Service Supplemental Specification (FSSS) to FP-14 for road maintenance work on the Apache-Sitgreaves National Forests. The specification establishes detailed technical requirements for aggregate materials used in road construction and maintenance.
The document specifies requirements for subbase, base, and surface course aggregates, as well as screened aggregate. All aggregate materials must be hard, durable particles or fragments of crushed stone, crushed slag, or crushed gravel and must meet specific performance standards including: Los Angeles abrasion of 35 percent maximum (AASHTO T 96), soundness of aggregate using sodium sulfate with 12 percent loss maximum for both coarse and fine aggregate (AASHTO T 104, 5 cycles), durability index of 35 minimum for both coarse and fine (AASHTO T 210), fractured faces of 70 percent minimum (AASHTO T 335), and exclusion of organic matter and clay lumps. Subbase and base course aggregates must conform to specific gradation ranges defined in Table 703-1 across eight grading designations (A through H), with liquid limit requirements of 25 maximum (AASHTO R 58 and T 89). Surface course aggregates require the same general specifications plus additional requirements for liquid limit of 35 maximum and plasticity index specifications: 10±3 for Grading G and 8±4 for Grading H. The specification also includes Table 703-2 defining allowable deviations from target values based on percent by mass passing, Table 703-3 for surface gradation with six grading designations (F, G, H, S, T, U), and Table 703-13 establishing gradation requirements for screened aggregate across seven grading designations (L through R). All gradation testing must follow AASHTO T 27 and T 11 standards.
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Other files
| File | Type | Posted |
|---|---|---|
| C05 1240LP26Q0173 A00001.pdf | ||
| C04c WD 2015-5477 r32.pdf | ||
| C04 1240LP26Q0173.pdf | ||
| C04a Apache Road Materials SOW.pdf |
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Text version
Road Maintenance
Forest Service Supplemental Specifications (FSSS) to FP-14
Apache-Sitgreaves National Forests
Table of Contents 703 - Aggregate
703.05 Subbase, Base, Surface Course, and Screened Aggregate. ........... Error! Bookmark not defined.
703 - Aggregate 703.05_National_3_15_2022
Delete 703.05 and replace with the following:
703.05 Subbase, Base, and Surface Course Aggregate.
(a) General. Provide hard, durable particles or fragments of crushed stone, crushed slag, or crushed gravel conforming to the following:
(1) Los Angeles abrasion, AASHTO T 96 35 percent maximum
(2) Soundness of aggregate using sodium sulfate AASHTO T 104, 5 cycles
(a) Coarse aggregate 12 percent loss maximum
(b) Fine aggregate 12 percent loss maximum
(3) Durability index (coarse), AASHTO T 210 35 minimum
(4) Durability index (fine), AASHTO T 210 35 minimum
(5) Fractured faces, AASHTO T 335 (one or more) 70 percent minimum
(6) Without organic matter and lumps or balls of clay.
(b) Subbase or base course aggregate. In addition to Subsection 703.05(a), conform to the following:
(1) Gradation Table 703-1
(2) Liquid limit, AASHTO R 58 and AASHTO T 89 25 maximum
Table 703-1 Target Value Ranges for Subbase, Base, and Surface Course Gradation
Sieve size
Percent by Mass Passing Designated Sieve (AASHTO T 27 & T 11) Grading Designation(1)
Subbase Base Surface A B C D E F G H
2½ in 100 – – – – – – – 2 in 97 to 100 100 100 – – – – –
1½ in – 97 to 100 – – – – – – 1 in 65 to 79 – 80 to 100 100 100 – 100 – ¾ in – – 64 to 94 86 to 100 86 to 100 100 – 100 ½ in 45 to 59 – – – – – 70 to 80 – ⅜ in – – 40 to 69 51 to 82 51 to 82 62 to 90 – – No. 4 28 to 42 40 to 60 31 to 54 36 to 64 36 to 64 36 to 74 40 to 50 41 to 71
No. 10 – – – – – – 25 to 40 – No. 40 9 to 17 – – 12 to 26 12 to 26 12 to 26 15 to 25 12 to 28
No. 200 4.0 to 8.0 4.0 to 12.0 4.0 to 7.0 4.0 to 7.0 10 max(2) 4.0 to 7.0 8.0 to 14.0 9.0 to 16.0
(1) Contractor specified target values. See Table 703-2 for allowable deviations.
(2) Statistical procedures do not apply.
(c) Surface course aggregate. In addition to Subsection 703.05(a), conform to the following:
(1) Gradation Table 703-1
(2) Liquid limit, AASHTO R 58 and T 89, Method A 35 maximum
(3) Plasticity index, AASHTO T 90
(a) Grading G 10±3
(b) Grading H 8±4
Table 703-2 Allowable Deviation
Based on Target Value for Aggregates Percent by Mass Passing Allowable
Deviation Minimum Maximum
90.0 100 (1)
70.1 89.9 4
60.1 70.0 5
55.1 60.0 6
45.1 55.0 7
40.1 45.0 6
30.1 40.0 5
21.1 30.0 4
8.1 21.0 3 0 8.0 2
(1) Statistical procedures do not apply.
Delete Table 703-2 and replace with the following:
Target Value Ranges for Subbase, Base, and Surface Course Gradation
Sieve size
Percent by Mass Passing Designated Sieve (AASHTO T 27 & T 11) Grading Designation(1)
Subbase Base Surface A B C D E F G H
2½ in 100 – – – – – – – 2 in 97 to 100 100 100 – – – – –
1½ in – 97 to 100 – – – – – – 1 in 65 to 79 – 80 to 100 100 100 – 100 – ¾ in – – 64 to 94 86 to 100 86 to 100 100 – 100 ½ in 45 to 59 – – – – – 70 to 80 – ⅜ in – – 40 to 69 51 to 82 51 to 82 62 to 90 – – No. 4 28 to 42 40 to 60 31 to 54 36 to 64 36 to 64 36 to 74 40 to 50 41 to 71
No. 10 – – – – – – 25 to 40 – No. 40 9 to 17 – – 12 to 26 12 to 26 12 to 26 15 to 25 12 to 28
No. 200 4.0 to 8.0 4.0 to 12.0 4.0 to 7.0 4.0 to 7.0 10 max(2) 4.0 to 7.0 8.0 to 14.0 9.0 to 16.0
(1) Contractor specified target values. See Table 703-2 for allowable deviations.
(2) Statistical procedures do not apply.
Delete Table 703-3 and replace with the following:
T ab le
-3 ar ge t V al ue R an ge s f or
S ur fa ce
G ra da tio n
Pe rc en t b y M as s P as si ng D es ig na te d Si ev e
(A A
SH
T
O T an d
T
1)
G ra di ng
D es ig na tio n
U
(6
(7
(6
(5
8.
.0 (4
T he v al ue in th e pa re nt he se s i s t he a llo w ab le d ev ia tio n
) f ro m th e ta rg et v al ue s.
If th e pl as tic ity in de x
(P I) is gr ea te r t ha n 0, th e
TV
ra ng e fo r t he N o.
si ev e siz e is
-1
(4
(7
(5
8.
.0 (4
S 10
(6
(7
(5
8.
.0 (4
H
(6
(7
(6
(5
9.
.0 (4
G
(6
(6
(5
.0
6.
(4
F 10
-1
-8
-6
(6
-5
-3
(6
-2
(5
.0
-1 6.
(4
Si ev e Si ze
1/ in ch
3/
1/
3/
N o.
N o.
N o.
Add Table 703-13:
Table 703-13 Gradation Requirements for Screened Aggregate
Sieve Size
Percent by Mass Passing Designated Sieve (AASHTO T 27 and T 11)
Grading Designation L M N O P Q R
6 inch 100 100
4 inch 100 100
3 inch 100 100
2 inch 100
No. 4 15-45 15-45 15-45
| 703 - Aggregate |
| 703.05 Subbase, Base, and Surface Course Aggregate. |
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