908 REINFORCING STEEL

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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 per 917.02 when specified.
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 per 917.02. Bars used for traverse joints shall not exceed the maximum pullout strength per M 254.
908.03 STAINLESS STEEL BARS.
A276, Type SMUnified Soil Classification System term for Silt-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.
A185. Reinforcement shall be furnished in flat sheets.
908.06 WELDED STEEL WIRE REINFORCEMENT, DEFORMED.
A497.
908.07 WELDED DEFORMED STEEL BAR MATS.
A184.
908.08 STEEL WELDED WIRE REINFORCEMENT FOR PNEUMATICALLY APPLIED MORTAR AND CONCRETE ENCASEMENT.
A185, galvanized per 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 48000 psi.
908.11 STEEL STRAND.
M 203, Grade 70, Low Relaxation Strand.
908.12 CERTIFICATION.
TC-1.03. The steel manufacturer shall furnish certification for each heat of steel supplied.


SPECIAL PROVISION INSERTS

The following Special Provision Inserts update Section 908 after the official publication of the Standard SpecificationA written description of functional characteristics, or the nature of a construction item to be procured. It may include a. Updated documents may be found within the Standard and Supplemental Specifications for Construction and Materials on the MDOTMaryland Department of Transportation SHA web page.

SPI-Section 908-Reinforcing Steel. Dated 12/20/2017.