city of charlottetown tender 2012 storm pipe construction package b ...

City of Charlottetown Section 31 23 10May 2012Excavation, Trenching, and Backfilling2012 Storm Pipe Construction, Package B Page 2 of 5.1 Conduct, with Engineer, condition survey of existing buildings, trees and other plants,lawns, fencing, service poles, wires, rail tracks, pavement, survey bench marks andmonuments which may be affected by Work..2 Protect existing buildings and surface features from damage while Work is in progress. Inevent of damage, immediately make repair to approval of Engineer.PART 2Products2.1 Materials.1 Type 1 Fill: Crushed rock composed of hard, sound, durable uncoated, cubical fragments ofconsistent quality produced from non-sedimentary bedrock or non-sedimentary boulders, to complywith the P.E.I. Department of Transportation and Infrastructure Renewal Specification 401 –Aggregate, for Class “A” material..2 Type 2 Fill: Crushed rock composed of hard, sound, durable, uncoated, cubical fragments ofconsistent quality produced from non-sedimentary bedrock or non-sedimentary boulders, to complywith the P.E.I. Department of Transportation and Infrastructure Renewal s Specification 401 –Aggregate, for Class “B” material..3 Type 3 Fill: Imported, classified as Common Fill, or material from excavation or other sources,approved by Engineer for use intended, unfrozen, free from rocks larger than 75mm, cinders,ashes, sods, refuse or other deleterious materials..4 Type 4 Fill: Natural sand or crushed rock screening, free from clay, shale or organic matter, tocomply with P.E.I. Department of Transportation and Infrastructure Renewal Specification 402 –Bedding Sand..5 Type 5 Fill: To requirements of P.E.I. Department of Transportation and Infrastructure RenewalSpecification #206.02.02 – Select Borrow as follows: Borrow shall be non-plastic and composed ofclean, uncoated particles free from lumps of clay or other deleterious material with a maximumparticle size of 100 mm, and a maximum of 30% of the material passing the 4.75 mm sieve shallpass the 75 µm sieve.PART 3Execution3.1 Site Preparation.1 Remove obstructions, ice and snow, from surfaces to be excavated within limits indicated..2 Where applicable, strip topsoil from within limits of excavation and stockpile as directed byEngineer, for respreading..3 Sawcut pavement or concrete neatly along limits of proposed excavation in order that surface maybreak evenly and cleanly.3.2 Stripping of Topsoil.1 Commence topsoil stripping of areas after area has been cleared of brush, weeds and grasses andremoved from site.