Precast Concrete Association of Virginia - elliptical concrete pipe
Elliptical concrete pipe is available in equivalent circular diameters of 18 (14x23) through 144 (116x180) inches. Orientation may be horizontal elliptical or vertical elliptical. Standard pipe length is 6 to 8 feet. Standard wall thickness are available. Joints are typically tongue and groove for packing mastic joint compound, butyl gaskets or mortar to meet ASHTO M198A. A large assortment of fittings are available including manhole and lateral tees, elbows, wyes, reducers, skewed ends, adapters, wall sleeves, caps/plugs, etc. A variety of linings and coatings are available if required by project conditions. Standard ASTM 0507 (AASHTO M207) elliptical pipe designs.