848.1General Description
This section includes the requirements for all pipe appurtenances, such as: • Rubber gaskets • Steel-bolted couplings • Gate valves • Sterilizing agents • Bituminous plastic cement 848.1.01 Related References
AASHTO M 198 AASHTO M 315 ASTM C 1619 ASTM D 2000 3AA708Z-B-13 AWWA B 300 AWWA C 500 AWWA M 11 QPL 21
848.2Materials
848.2.01 Rubber Gaskets for Concrete Pipe
Type Use rubber-type gaskets and o-rings meeting the requirements of AASHTO M 315 and ASTM C 1619, Class C. However, pipe used in culvert construction does not need a hydrostatic pressure test.
General Provisions 101 through 150.
The Department will accept gaskets from approved QPL sources only.
General Provisions 101 through 150. 1596 1596 1596
848.2.02 Steel-Bolted Couplings
Coupling Types Use steel-bolted couplings for joining all types of plain end pipe. Ensure the couplings have the following characteristics: • Wedge gasket and flared sleeve • One steel middle ring, two steel followers, two wedge-shaped rubber-compounded gaskets, and steel bolts • Dimensions and type for the size and kind of pipe to be joined, including reducers if required Middle Rings
cold-formed to provide proper flare at each end and to receive the wedge portion of the gasket.
cold-formed, cold-expanded beyond the yield point of the steel to size the ring and proof-test the weld.
accommodate pipe deflection. Followers
Size Fabrication 0.375 in. (10 mm) through 1.5 in. (40 mm) One piece steel forgings. Above 1.5 in. (40 mm) through 5 ¼ in. (130 mm) Cold-formed, two-piece construction. 5 ¼ in. (140 mm) through 20 in. (500 mm) Hot forged from a single piece circular plate & water quenched after forging for maximum strength. Above 20 in. (500 mm) Use a special contoured mill section - circle-rolled, flash-welded and cold-expanded beyond the yield point of the steel to size the ring and proof-test the weld. All followers Have solid formed gasket recess, free of seams or breaks, to confine the gasket. 1597 1597 1597
Gaskets Use gaskets meeting the requirements of ASTM D 2000 3AA708Z-B-13, with the following exceptions: Color Jet black Surface Nonblooming Shore “A” Durometer hardness 75 ± 5 Tensile strength 800 psi (5.5 MPa) minimum Elongation 175% minimum
conditions. Use natural or synthetic rubber that does not contain reclaimed rubber.
normally found in natural gas.
corrode or deteriorate and is molded into the tip of the gasket. Bolts Use bolts that have elliptical necks and track heads. Align the elliptical neck and the elliptical hole in the follower so the bolt will not turn.
Coating
according to AWWA M 11. Certification Submit a certification from the pipe, gasket, or joint manufacturer to the Engineer, according to Subsection
106.05, Materials Certification. The certificate shall describe the physical properties of the rubber gasket and
show the results on hydrostatic tests of the gasket and pipe used in the Work.
General Provisions 101 through 150.
The Department will accept the material based on the certification.
General Provisions 101 through 150. 848.2.03 Gate Valves
Use gate valves meeting the requirements of AWWA C 500.
General Provisions 101 through 150.
The Department will accept the material based on the certification. 1598 1598 1598
General Provisions 101 through 150. 848.2.04 Sterilizing Agents
Use hypochlorites meeting the requirements of AWWA B 300 for sterilizing water systems.
General Provisions 101 through 150.
General Provisions 101 through 150.
General Provisions 101 through 150. 848.2.05 Bituminous Plastic Cement
Type Use a bituminous compound composed of steam-refined petroleum asphalt or refined coal tar that is dissolved in a suitable solvent and stiffened with a mineral filler with short mineral fibers.
remixed by stirring.
and has good adhesive and cohesive properties when applied to joint surfaces.
culvert pipe.
1/16 to 1/8 in. (2 to 3 mm) thick on a tinned metal panel and cured at room temperature for 24 hours.
Minimum Maximum Grease cone penetration 175.00 250 Weight, lbs./gal (kg/L) 9.75 (1.2) — Non-volatile, percent 75.00 — Ash, by ignition, percent by weight 25.00 45 Use approved materials from those listed on QPL 21.
General Provisions 101 through 150. 1599 1599 1599
Test as follows: Test Method Grease cone penetration AASHTO T 187 Non-Volatile ASTM D 2939 Ash ASTM D 128
General Provisions 101 through 150. 848.2.06 Preformed Plastic Gaskets
Use cold-applied plastic gaskets meeting the requirements of AASHTO M 198 to seal tongue-and-groove concrete culverts, precast manhole, and sewer pipes. However, do not perform the Flash Point COC and Fire Point COC tests. Use approved materials from those listed in QPL 21.
General Provisions 101 through 150.
The Department will accept materials only from facilities listed in QPL 21.
General Provisions 101 through 150. 1600 1600 1600
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