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Construction Program Management and Inspection Guide

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8.6.2 – Roadway Embankment Material (Continued from page B-52)<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 />

Material Type(s) Quality Characteristic Engineering Target Engineering<br />

Limit Limit<br />

Rock Excavate Maximum Rock Size - - 1 meter<br />

A-1, A-2-4, or A-3<br />

Soil Classification (AASHTO M1145) +<br />

Up to 50% Boulders/Rock < 600 mm<br />

Grain Size + 6.3 mm Sieve Per Per SC Per<br />

Analysis AASHTO AASHTO<br />

(AASHTO T311) - 6.3 mm Sieve M145 Per SC M145<br />

Grain Size Per Per<br />

Analysis 6.3 mm Sieve AASHTO Per SC AASHTO<br />

(AASHTO T311) -6.3 mm Sieve M145 Per SC M145<br />

Per<br />

Liquid Limit (AASHTO T89) - - AASHTO<br />

M145<br />

Ordinary Per<br />

Barrow Plasticity Index (AASHTO T90) - - AASHTO<br />

(M1.010) M145<br />

Maximum Dry Density (W dm ) SC – 5 kg/m 3 Per SC SC + 5 kg/m 3<br />

(AASHTO T99, Method C)<br />

Optimum Moisture Content (W mo ) SC - 2% Per SC SC + 2%<br />

(AASHTO T99, Method C)<br />

Maximum Rock/Boulder Size - - 300 mm<br />

Maximum Lift Thickness - - 300 mm<br />

In-Place Density 95% Wdm 100% Wdm -<br />

(AASHTO T310, Method B)<br />

In-Place Moisture Content W mo - 2% (W mo ) W mo + 2%<br />

(AASHTO T310, Method B)<br />

Continued on next page<br />

B–53

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