Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
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SAMPLE<br />
4.2.2 – Mix Designs<br />
Earthwork Materials “Mix Designs” are generally not required. Source Characterization<br />
testing will determine whether specific Earthwork Materials sources meet the specification<br />
requirements for a particular material type required (i.e. Ordinary Borrow, Gravel Borrow,<br />
Special Borrow, etc.).<br />
4.3 – Processing of Existing Materials<br />
Where On-Site excavate proposed to be used for Earthwork is found to not meet<br />
specification requirements, the following procedures will be used to process or blend the<br />
material to meet the requirements of a specific Earthwork Material Type:<br />
▼ A blended material “Mix Design” will be developed by the Project Laboratory.<br />
▼ A stockpile of the excavate, not to exceed one day’s production, will be blended with<br />
other material per the “Mix Design.”<br />
▼ At the completion of blending of the stockpile, samples will be obtained <strong>and</strong> Source<br />
Characterization testing will be performed to confirm that the blended material meets the<br />
specification requirements.<br />
4.4 – Material Storage <strong>and</strong> Stockpiling<br />
All Earthwork materials will be properly stored <strong>and</strong> maintained to prevent contamination or<br />
commingling of different materials. Storage <strong>and</strong> stockpiling procedures will be as follows:<br />
▼ The limits of each storage or stockpile location will be clearly marked by grade stakes<br />
legibly marked indicating the corresponding Source Characterization sample number (i.e.<br />
SC-1, SC-2, etc.) contained in the Project “Soils Source Characterization Log.”<br />
▼ All active/working stockpiles of Earthwork materials will be characterized in accordance<br />
with Section 4.2.1 above a minimum of once per week.<br />
5.0 Quality Control Sampling <strong>and</strong> Testing<br />
The requirements <strong>and</strong> procedures to be used for QC sampling <strong>and</strong> testing of Earthwork are as<br />
indicated below.<br />
5.1 – Lot <strong>and</strong> Sublot Sizes<br />
Each Lot of Earthwork material will represent material from the same source, be produced or<br />
obtained under the same controlled process, <strong>and</strong> will possess normally distributed specification<br />
properties. Each Lot will be divided into Sublots of equal size in order to assess the Quality<br />
Characteristics of the Lot. The Lot size <strong>and</strong> corresponding Sublot size for each Earthwork Item<br />
are identified in the following table.<br />
Appendix B: Quality Assurance Resources<br />
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)<br />
B–31