990 Page 589990 PIPE CULVERTS AND DRAINAGE TUBING
990.1REQUIREMENTS
A.Reinforced Concrete Pipe: Reinforced concrete pipe will conform to AASHTO M 170, M 206, and M 207. 1.Basis of Acceptance: The acceptability of the pipe will be determined on the basis of plant load bearing tests, compressive strength of concrete, material tests, and inspection of the complete product. 2.Materials : Materials will conform to the requirement of the following sections: a.Portland cement will be Type II conforming to Section 750. b.Water will conform to Section 790. c.Fine aggregate will conform to Section 800. d.Coarse aggregate will conform to Section 820 except the gradation requirements will not apply. e.Reinforcement will conform to Section 1010 . f.Air entraining agent will conform to Section 751. The entrained air content for wet cast pipe will be 6% plus or minus 1.5%. g.Fly ash will conform to Section 753. h.Flexible watertight gaskets will conform to ASTM C1619 or ASTM C1628. i.Admixtures will conform to Section 752. 3.Concrete: The concrete in special sections will have a minimum compressive strength of 4000 psi. Special sections are those sections of concrete pipe not covered by the class requirement of AASHTO M 170, M 206, or M 207. The strength will be determined by test cylinders or by cores. B.Corrugated Metal Pipe: Corrugated metal pipe will conform to AASHTO M 36 or AASHTO M 196. C.Bituminous Coated Corrugated Metal Pipe: Bituminous coated corrugated metal pipe will conform to AASHTO M 190, except the pipe will conform to AASHTO M 36 or AASHTO M 196 before coating. D.Structural Plate Pipe: Structural plate for pipe will conform to AASHTO M 167 or AASHTO M 219. 990 Page 590E.Corrugated Polyethylene Drainage Tubing : Corrugated polyethylene drainage tubing, couplings, and fittings will conform to the requirements of AASHTO M 252 except Section 7.4 is modified as follows: The length of the individual slots on the 4 inch to 8 inch diameter tubing will not exceed 12% of the tubing inside nominal circumference. F.Corrugated Polyethylene Pipe: Corrugated polyethylene pipe, couplings, and fittings will conform to the requirements of AASHTO M 294. G.High Density Polyethylene Pipe: High Density Polyethylene pipe, couplings, and fittings will conform to the requirements of AASHTO M 294. 1010 Page 5911010 CONCRETE REINFORCEMENT
1010.1REQUIREMENTS
A.Bar Reinforcement – Structures and Paving (excluding dowel and tie bars): Bar reinforcement for structures and concrete pavement, will conform to the requirements of AASHTO M 31 (ASTM A615) Grade 60. Bar reinforcement will be deformed, unless otherwise noted. When stainless steel deformed reinforcing bars are specified in the plans, the stainless steel deformed reinforcing bars will conform to the requirements of ASTM A955. B.Welded Wire Reinforcement: Welded wire reinforcement will conform to ASTM A1064. The optional yield strength measurement will only be required for welded wire reinforcement utilized in box culverts and prestressed concrete. C.Tie Bars: Tie bars for concrete pavement will conform to the requirements of AASHTO M 31, Grade 40, except rail steel will not be used for tie bars that are to be bent and re-straightened. Tie bars will be deformed. Tie bars will be epoxy coated conforming to Section 1010.1 E. Sawing or shearing of the tie bars to obtain the specified length will be permitted provided the coating is not damaged and the resulting bar is free from burring and other deformations. The cut ends will be coated. D.PCC Paving Dowel Bars and Dowel Bar Assemblies: The steel cores of dowel bars and plain round bars will be plain round bars conforming to AASHTO M 31 (ASTM A615) Grade 40 or 60, M 227 (ASTM A663) Grade 70 minimum, or M 255 (ASTM A675) Grade 75 minimum. The bars will be the diameter shown in the plans, free from burring or other deformation restricting slippage in the concrete. Dowel bars will be epoxy coated conforming to Section 1010.1 E. Sawing or shearing of the dowel bars will be permitted provided the coating is not damaged and the resulting bar is within the permissible deformations. The cut ends are not required to be coated. Any deformation larger than true shape will not exceed a 0.04 inch increase in diameter or thickness and will not extend more than 0.40 inch from the dowel end. Bond breakers used to pre-coat dowel bar assemblies will be one of the products from the Department’s Approved Products List. E.Epoxy Coated Reinforcement: Epoxy coatings will be applied by a plant certified by the Concrete Reinforcing Steel Institute (CRSI). A Certificate of Compliance and a copy of all quality control test results for the epoxy coating will be furnished for each shipment supplied for use on a project. Dowel bars for concrete pavements will be epoxy coated and will conform to AASHTO M 254 Type B except the film thickness will be from 5 to 13 mils after cure. All other epoxy coated reinforcement will comply with ASTM A775.