CATEGORY 900 MATERIALS SECTION 908 — REINFORCING STEEL
908.01 Deformed Reinforcement
A615, Grade 60 or A706, Grade 60. Use A706 Grade 60 when welding of the reinforcement is required. Deformed bars shall be epoxy powder coated as specified in 917.02.
908.02 Plain Reinforcement
A615, Grade 60. Bars used as ties in Portland cement concrete pavement expansion and contraction joints shall be plain round steel bars unless otherwise specified. Bars shall be epoxy powder coated as specified in 917.02. Bars used for traverse joints shall not exceed the maximum pullout strength according to M 254.
908.03 Stainless Steel Bars
A276, Type SM-29. Stainless steel bars may be used in lieu of epoxy powder coated plain bars. Deformed stainless steel bars shall meet A615 for cross sectional area and deformations.
908.04 Sleeves for Dowel Bars In Pavement Expansion
JOINTS Sleeves for dowel bars shall be sheet metal and capable of fitting over 2 ± 1/4 in. of the bar. Sleeves shall have a closed end with a stop to hold the end of the sleeve a minimum distance of 1 in. from the end of the dowel bar.
908.05 Welded Steel Wire Reinforcement, Plain
A1064. Reinforcement shall be furnished in flat sheets.
908.06 Welded Steel Wire Reinforcement, Deformed
A497.
908.07 Welded Deformed Steel Bar Mats
A184. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
908.08 Steel Welded Wire Reinforcement for
PNEUMATICALLY APPLIED MORTAR AND CONCRETE ENCASEMENT A185, galvanized according to A123. The reinforcement shall be fabricated from size W1.4 wire on 3 in. centers in each direction or from W0.9 wire on 2 in. centers in each direction.
908.09 Cold Drawn Steel Wire
M 32 for concrete reinforcement.
908.10 Tie Devices for Concrete Pavement
Tie device sizes shall be as specified and made from deformed bar meeting 908.01 with a threaded connection. Tie devices shall have a minimum tensile strength of 40 000 psi.
908.11 Steel Strand
M 203, Grade 270 Low Relaxation Strand.
908.12 Certification
TC-1.03. The steel manufacturer shall furnish certification for each heat of steel supplied.
908.13 Low Carbon Chromium Bars
A1035, Type CM or CS, Grade 100 or 120. Low carbon chromium bars may be used in lieu of epoxy powder coated plain or deformed bars. Deformed low carbon chromium bars shall meet A615 for cross sectional area and deformations. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 909 — METALS 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 900 MATERIALS SECTION 909 — METALS
909.00 Certification
TC-1.03. The metal producer shall furnish certification as specified. Certification shall include actual mill test results and the chemical and physical properties of the finished metal products.
909.01 Structural Steel
Structural steel shall meet the following:
a.M 270, Zone 2. All primary load carrying members shall meet the supplementary toughness requirements.
b.Primary load carrying members are as follows or as specified.
1.Finger joint steel from which saw tooth configurations have been cut, all stringers, cover plates, bearing stiffeners, splice plates, pins and pin links for straight rolled steel beam bridges; all flanges, webs, bearing stiffeners, splice plates, pins and pin links for straight steel girder bridges.
2.Curved rolled steel beam and steel girder bridges; all diaphragms, cross frames, lateral bracing, including connection plates to main stringers.
909.02 Steel for Miscellaneous Use
A36, A572 or A709, Grade 36 or 50. Steel for bearings on structures shall conform to A709, Grade 50.
909.03 Welding Materials
AWS D1.5 or D1.1 according to design criteria.
909.04 Gray Iron Castings
A48, Class 30B.
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 967–968 of 1,113.