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FHWA > Engineering > Construction > Management and Coordination > Construction Program Management and Inspection Guide > Appendix B (Part 3 continued) |
Construction Program Management and Inspection GuideAppendix B (Part 3 continued)4.0 Materials ControlThe types, sources, properties, and procedures for storing of materials to be used for each Earthwork category are as indicated below. 4.1 - Material Types and Source(s) of SupplyEarthwork material will be classified according to the following Earthwork Item categories:
4.1.1 - Backfill Material for Muck ExcavationThe types and potential sources of material currently identified for use as Backfill Material for Muck Excavation are listed in the table below.
ABC Contractors will submit updated information on the types and sources of Backfill Material for Muck Excavation as part of the "Weekly Schedule of Earthwork Materials Production Operations" as outlined under Section 6.1 below. 4.1.2 - Roadway Embankment MaterialThe types and sources of material currently identified for use as Roadway Embankment are listed in the table below. At this time, sufficient quantities of Earth Excavate, Rock Excavate, Ordinary Borrow, and Gravel Borrow appear to be available On-Site for Roadway Embankment construction. If Off-Site sources of these materials are determined necessary by ABC Contractors, the table will be updated to reflect these sources.
ABC Contractors will submit updated information on the types and sources of Roadway Embankment Material as part of the "Weekly Schedule of Earthwork Materials Production Operations" as outlined under Section 6.1 below. 4.1.3 - Embankment Material Under Bridge FoundationsThe types and potential sources of material currently identified for use as Embankment Material under Bridge Foundations are listed in the table below.
ABC Contractors will submit updated information on the types and sources of Embankment Material under Bridge Foundations as part of the "Weekly Schedule of Earthwork Materials Production Operations" as outlined under Section 6.1 below. 4.1.4 - Backfill Material for StructuresThe types and potential sources of material currently identified for use as Backfill Material for Structures are listed in the table below.
ABC Contractors will submit updated information on the types and sources of Backfill Material for Structures as part of the "Weekly Schedule of Earthwork Materials Production Operations" as outlined under Section 6.1 below. 4.1.5 - Backfill Material for PipesThe types and potential sources of material currently identified for use as Backfill Material for Pipes are listed in the table below.
ABC Contractors will submit updated information on the types and sources of Backfill Material for Pipes as part of the "Weekly Schedule of Earthwork Materials Production Operations" as outlined under Section 6.1 below. 4.2 - Material PropertiesEarthwork material Source Characterization and Mix Designs will be performed as described below. 4.2.1 - Material Source Characterization Sampling and TestingEarthwork materials will be fully characterized by ABC Contractors prior to their use in the intended location. Grids will be established and maintained at each Earthwork source location identifying "Quadrants." Each Quadrant will be numbered for Source Characterization identification (e.g. SC-1, SC-2, SC-99, etc.). ABC Contractors will submit the results of Source Characterization testing for each Source Quadrant of Earthwork material to Transportation Agency a minimum of two (2) calendar days prior to placement of any material from the Source Quadrant. The following table identifies the specific Source Characterization testing that will be performed on all Earthwork materials.
All Earthwork Source Characterization samples will be obtained randomly in accordance with ASTM D3665. The random sample locations within each Source Quadrant will be determined by Station, Offset, and Elevation within the Quadrant. All random sample locations will be documented on NETTCP Standard Test Report Form D3665 or D3665RNG. A copy of these Random Sampling Forms is located in Appendix __ (see Note in "A Model Quality Control Plan"). All Earthwork Source samples will be obtained following AASHTO T2 and split in accordance with AASHTO T248. All Source Characterization sampling and testing results will be documented on the following Standard Test Report Forms (TRFs):
A copy of the standard TRFs used for Source Characterization sampling and testing is located in Appendix __ (see Note in "A Model Quality Control Plan"). 4.2.2 - Mix DesignsEarthwork Materials "Mix Designs" are generally not required. Source Characterization testing will determine whether specific Earthwork Materials sources meet the specification requirements for a particular material type required (i.e. Ordinary Borrow, Gravel Borrow, Special Borrow, etc.). 4.3 - Processing of Existing MaterialsWhere On-Site excavate proposed to be used for Earthwork is found to not meet specification requirements, the following procedures will be used to process or blend the material to meet the requirements of a specific Earthwork Material Type:
4.4 - Material Storage and StockpilingAll Earthwork materials will be properly stored and maintained to prevent contamination or commingling of different materials. Storage and stockpiling procedures will be as follows:
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This page last modified on 07/20/07 |