Construction Program Management and Inspection Guide

SAMPLE
5.4 – QC Sampling and Testing Requirements
The specific requirements (Quality Characteristics, frequency, location, methods) for QC
sampling and testing of each Earthwork item are outlined in the tables below.
5.4.1 – Backfill Material for Muck Excavation
Appendix B: Quality Assurance Resources
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)
QC Sampling and Testing Requirements
Sublot Size/
Quality Test Point of Sampling
Characteristic Test Method(s) Lot Size Frequency Sampling Method
Gradation AASHTO T11 Total Quantity of 1 Sample/
AASHTO T27 Backfill Material 5,000 m 3 for
Type / Source / 1st 50,000 m 3 From In-Place Random
Project Segment 10,000 m 3 Lift of Backfill T2, T248
thereafter
Maximum Dry AASHTO T99 Total Quantity of 1 Sample/
Density and (Method C) Backfill Material 5,000 m3 for
Optimum AASHTO T180 Type / Source / 1st 50,000 m3 From In-Place Random
Moisture Content (Method D) Project Segment and 1 Sample/
10,000 m
Lift of Backfill T2, T248
3
thereafter
Maximum Total Quantity of
Rock Size Visual/Tape Backfill Material Minimum From In-Place Random
(< 1 m) Type / Source / 4/Lift/Day Lift of Backfill Visual
Project Segment
Maximum Total Quantity of
Lift Thickness Rod/Grade Backfill Material Minimum From In-Place Random
(< 300 mm) Stake Type / Source / 4/Lift/Day Lift of Backfill Visual
Project Segment
In-Place Total Quantity of 1 Sample/1,000
Density and AASHTO T310 Backfill Material m 3 , but From Random
Moisture Content (Method B) Type / Source / not less than Compacted T310
(Per Targets) Project Segment 1/Placement Backfill
Location/Day
B–33