CATEGORY 900 MATERIALS SECTION 916 — SOIL AND SOIL AGGREGATE BORROW
916.01 Borrow Excavation
A soil or soil aggregate mixture meeting the following: Maximum dry density and optimum moisture content of the material according to T 180, Method C unless the material has more than 35 percent retained on the No. 4 sieve, in which case Method D shall be used. Material with a maximum dry density of less than 100 lb/ft 3 is unsatisfactory and shall not be used in embankments. Potentially expansive materials, such as steel slag, are prohibited. Refer to the Recycled Materials Special Provisions located elsewhere in the Contract Documents. BORROW REQUIREMENTS Class Borrow Max Dry Density Minimum P.C.F. T 180 LL Maximum T 89 PI Maximum T 90 Gradation Requirements T 88 Reference MSMT Soil Classification Reference AASHTO Classification Select Borrow 105 34 7 30% max passing No. 200 sieve A-2, A-3, A-2-4 A-1-a, A-1-b, A-3, A-2-4 Capping Borrow 105 34 7 30% max passing No. 200 sieve 1 A-2, A-3, A-2-4 A-1-a, A-1-b, A-3, A-2-4 Modified Borrow 125 30 9 50% min retained on No. 4 sieve Any material except A-5 A-2-4, A-42 Common Borrow 100 N/A N/A N/A N/A N/A Clay Core3 1004 N/A N/A 30% min passing No. 200 sieve N/A N/A 1When material has no liquid and plastic limit and the amount of material passing the No. 4 sieve and retained on the No. 10 sieve is less than 10 percent of the total sample mass, the material shall have at least 15 percent passing the No. 200 sieve. 2 A-4 material must be a manufactured product. 3 Unified Soil Classification GC, SC, CH, or CL free of roots, stumps, wood, rubbish or other objectionable materials. 4Test according to T-99-C 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 917 — MISCELLANEOUS PROTECTIVE COATINGS epoxy system designated and color matched for patching the epoxy coating used. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 900 MATERIALS SECTION 917 — MISCELLANEOUS PROTECTIVE COATINGS
917.01 Epoxy Protective Coatings for Concrete
Protective coatings shall be two component epoxy systems for use in conjunction with concrete. One component shall be a clear or pigmented condensation product of the reaction of epichlorohydrin with bisphenol A, the resin of which shall be composed of 100 percent reactive constituents. The other component shall be a clear polyamide hardener. The producer shall submit a sample of each component for laboratory analysis. The sample shall be coded as the original sample. The original and all subsequent samples shall conform to the following: TEST PROPERTY TEST METHOD SPECIFICATION LIMITS Pot Life, hr min Fed. Spec TT-C-535 8 Color AMS-STD-595A Gray No. 26440 Dry Film Thickness 1st coat, mil min 2nd coat, mil min D1005 2 3 Sagging D4400 Must pass test for Recommended film Thickness Flexibility Federal Spec TT-P-115 Must not crack, check or delaminate Infrared Spectrogram Equipment Manufacturer's Procedure Each component shall match original sample Tensile Strength, psi min None 400
917.02 Fusion Bonded Epoxy Powder Coatings for Steel
A775. The epoxy protective coating shall be a one-coat, heat curable, thermosetting powdered coating that is electrostatically applied on metal surfaces as specified. For reinforcement steel, the color shall be bright, in order to contrast with the normal color of reinforcement and rust (e.g. orange, red, green, yellow etc. and not brown or any color in the rust family). Reinforcement steel coated before fabrication shall have all hairline cracks and minor damage on fabrication bends patched, even if there is no bond loss. Select epoxy coating material from the Qualified Products List (QPL) maintained by the Office of Materials Technology (OMT).