CONCRETE PIPE Large Diameter Material Product Description 2440 mm High Barrel Top Slab / Base Slab 2440 mm High Barrel Top Slab / Base Slab 2440 mm High Barrel Top Slab / Base Slab 2440 mm High Barrel Top Slab / Base Slab 2440 mm High Barrel Top Slab / Base Slab 2440 mm High Barrel Top Slab / Base Slab 2100 mm High Barrel Top Slab / Base Slab Lifting Clutches Required 4 Ton 4 Ton 8 Ton 8 Ton 8 Ton 8 Ton 8 Ton 8 Ton 8 Ton 8 Ton 8 Ton 8 Ton 20 Ton 20 Ton Weight (kg) 4705 1900 6555 2700 8445 3300 8810 3700 12275 4740 15150 6100 14730 7350 1500 Dia. 1800 Dia. 1950 Dia. 2100 Dia. 2400 Dia. 2700 Dia. 3000 Dia. As stormwater and sanitary infrastructure increases in size, so too must the manhole structures needed to accommodate these connections. At the Calgary Pipe Operation, large diameter manhole material is available in 1500, 1800, 2100, 2400, 2700 and 3000 mm diameters. A barrel height of 2440 mm length is typical, with a monolithic base option available to accommodate specific heights. Top slabs typically transition from the larger diameter to 1220 mm diameter material. Alternatively, openings of most any shape and size can be accommodated, including the casting of access grates if the manhole structure is required to be flush with grade. For information on the maximum permissible pipe size connections for a given manhole diameter, please refer to page 44 of this eManual. Notes: • • • Separate base slabs can be extended to resist flotation in high groundwater conditions. Top slabs and base slabs are typically 300 mm thick. For shorter section lengths, please call your local Lafarge representative. PAGE 30 LAFARGE PIPE eMANUAL