Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
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B–36 Appendix B: Quality Assurance Resources<br />
SAMPLE<br />
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)<br />
5.4.4 – Backfill Material for Structures<br />
QC Sampling <strong>and</strong> Testing Requirements<br />
Quality<br />
Sublot Size/<br />
Test Point of Sampling<br />
Characteristic Test Method(s) Lot Size Frequency Sampling Method<br />
Total Quantity of<br />
AASHTO T11 Backfill Material 1 Sample/ From In-Place R<strong>and</strong>om<br />
Gradation AASHTO T27 Type / Source / 1,000 m 3 Lift of Backfill T2, T248<br />
Project Segment<br />
Maximum Dry AASHTO T99 Total Quantity of<br />
Density <strong>and</strong> (Method C) Backfill Material 1 Sample/ From In-Place R<strong>and</strong>om<br />
Optimum AASHTO T180 Type / Source / 1,000 m 3 Lift of Backfill T2, T248<br />
Moisture Content (Method D) Project Segment<br />
Maximum Total Quantity of<br />
Stone Size Visual/Tape Backfill Material Minimum Minimum R<strong>and</strong>om<br />
(< 75 mm) Type / Source / 4/Lift/Day Lift of Backfill Visual<br />
Project Segment<br />
Total Quantity of<br />
Maximum Backfill Material Minimum From In-Place R<strong>and</strong>om<br />
Lift Thickness Rod/Grade Type / Source / 4/Lift/Day Lift of Backfill Visual<br />
(< 150 mm) Stake Project Segment<br />
In-Place Total Quantity of<br />
Density <strong>and</strong> AASHTO T310 Backfill Material 1 Sample/100 From R<strong>and</strong>om<br />
Moisture Content (Method B) Type / Source / m 3 , but not less Compacted T310<br />
(Per Targets) Project Segment than 1/Lift/Day Backfill