2010 Construction and Material Specifications - Ohio Department of ...

711
706.03
with elliptical reinforcement with the symbol “E”. Mark pipe with deformed wire
reinforcement required in the design with the symbol “DF”.
706.03 Reinforced Concrete Pipe, Epoxy Coated. Provide Type A
reinforced concrete epoxy coated pipe conforming to 706.02 and Type B
conforming to 706.04, with the following modification:
In the plant, prepare the interior barrel and joint surface areas of the concrete
pipe to remove all forms of oil, laitance, and other deleterious materials and then
line them with a high-build, polyamide-cured, two-component coal tar epoxy
coating, Military Specification DOD-P-23236A (SH). Spray the lining compound
to obtain a continuous and relatively uniform and smooth lining with a minimum
dry film thickness of 0.03 inch (760 µm). Ensure that all coated pipe are free of
surface irregularities such as air bubbles, delamination, lumping, sagging,
blistering, pinholing, or porosity, in the coating film.
706.04 Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer
Pipe. Provide reinforced concrete elliptical culvert, storm drain, and sewer pipe
conforming to ASTM C 507 (ASTM C 507M), with the following modifications:
4.1 Delete Class HE-A. Table 706.04-1 includes additional design
requirements.
5.1 All materials, processes of manufacture, and finished pipe are subject to
inspection and approval by the Department. When directed by the Laboratory, the
manufacturer will cut holes in sections of the finished pipe for inspection.
6.2.1 Provide cement according to 701, except 701.07.
6.2.2 Provide fly ash according to 701.
6.3 Provide aggregates conforming to the quality requirements of 703.02.
6.5 Provide steel according 709.08, 709.10, 709.11, or 709.12.
7.2 In addition, manufacture horizontal elliptical pipe HE-II and HE-III
using the design requirements of Table 706.04-1.
8.1 In addition, ensure that pipe made in accordance with 706.04-1 has three
lines of reinforcement of elliptical shape. Place the outer and inner lines of
reinforcement so that the nominal protective covering of the concrete over the
reinforcement in the barrel of the pipe is 1 inch (25 mm) subject to the variations
permitted in Section 12.5. Ensure that the third or middle line is in contact with
and fastened securely to the inner line at the vertical axis of the pipe both top and
bottom and to the outer line at the horizontal axis on both sides. Ensure that the
length of the middle line is the average of the length of the inner and outer line.
Ensure that the middle line is of an elliptical shape and runs smoothly between the
specified points of contact with the inner and outer lines.
10 Ensure that no more than two holes are cast, drilled, or otherwise neatly
made in the shell of each piece of pipe for the purpose of handling or laying.
Taper the holes unless drilled, and before backfilling, fill the tapered holes with
portland cement mortar, or secure the precast concrete plugs with portland cement
mortar. Fill the drilled holes with portland cement mortar.