Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
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SAMPLE<br />
8.6.5 – Backfill Material for Pipes (Continued from page B-58)<br />
Appendix B: Quality Assurance Resources<br />
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)<br />
Targets <strong>and</strong> Engineering Limits<br />
Lower Upper<br />
Engineering Engineering<br />
Material Type(s) Quality Characteristic Limit Target Limit<br />
Soil Classification (AASHTO M145) Hard, durable stone <strong>and</strong> s<strong>and</strong> per M1.03.0<br />
12.5 mm Sieve 50 Per SC 85<br />
Gradation 4.75 mm Sieve 40 Per SC 75<br />
(AASHTO T11)<br />
(AASHTO T27)<br />
300 µm Sieve 8 Per SC 28<br />
75 µm Sieve 0 Per SC 10<br />
Gravel Plasticity Index (AASHTO T90) N.P. N.P. N.P.<br />
Borrow<br />
Maximum Dry Density (Wdm ) SC - 5 kg/m3 Per SC SC + 5 kg/m3 (M1.03.0)<br />
(AASHTO T180, Method D)<br />
Optimum Moisture Content (W mo ) SC - 2% Per SC SC + 2%<br />
(AASHTO T180, Method D)<br />
Maximum Stone Size - - 75 mm<br />
Maximum Lift Thickness - - 150 mm<br />
In-Place Density 95% W dm 100% W dm -<br />
(AASHTO T310, Method B)<br />
In-Place Moisture Content W mo - 2% (W mo ) W mo + 2%<br />
(AASHTO T310, Method B)<br />
B–59