105.01 Quality and Scope of Supply
All materials incorporated into the project must be tested by MDOT, certified by the manufacturer as meeting the applicable specifications, selected from the Qualified Products Lists or visually inspected at the project site. MDOT publishes several manuals which provide guidance on materials sampling, testing and acceptance. Revisions are published annually and distributed through the MDOT Publications Office. Unless otherwise indicated in the proposal, individual projects are governed by the edition in use at the time the project is advertised. Questions regarding materials sampling, testing and acceptance can be referred to the Region materials staff, or to the Construction and Technology Support Area staff.
Materials to be incorporated into the work may be inspected and tested any time and any place during their preparation, storage and use regardless of previous testing or manufacturer certifications. This applies to materials such as HMA and concrete mixtures furnished under quality control/quality assurance specifications, as well as materials supplied under standard specifications.
The inspector should check the storage areas and stockpiles to ensure that materials are being transported, handled and stored in a manner which will preserve their quality. If necessary, the Contractor is required to provide access to stored material so that a thorough inspection may be made. The basis of acceptance, testing frequency and documentation requirements are specified in the following guidance documents.
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Lists all sources of aggregate that have supplied to in-state projects and driving directions to get to the pits. |
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Establishes standards for certification of HMA plants. |
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Describes Quality Control and Quality Assurance testing that is to be performed on HMA projects. |
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Describes all tests that MDOT uses for density control testing. |
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Details department procedures for subsurface explorations, soils testing and analysis and geotechnical design. |
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Guidance document for personnel associated with sampling, testing and inspection of materials used in MDOT and federal aid secondary projects. |
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Lists suppliers authorized to certify materials, or to maintain tested stock of materials. Also contains the Qualified Products List of materials that have been evaluated and approved for use on MDOT projects. |
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Includes the procedures used by MDOT in testing certain materials, equipment or operations. Supplements test methods published by ASTM or AASHTO. |
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Procedures for qualifying aggregates for HMA and concrete construction. |