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Highway 20 Widening and Reconstruction - Longueuil, Quebec

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Project Details
Year: 2002
General contractor: DEMIX Construction
Sub-contractor – concrete: DEMIX Construction
Sub-contractor – excavating: Les Entreprises Michaudville Inc.
Plans, specs, concept: SM Group
Supervision: SM Group
Client: Province of Quebec
Concrete Slab Data
Area: 115,000 m2
Thickness: 310 and 320 mm Volume: 35,750 m3
28-day strength: Compressive: 35 MPa Flexural: 4.5 MPa
Vertical joints: Premolded – Watson Bowman
Longitudinal joints: Hot-applied product
Curing: MAPEI Planicure 65
Cement used: Ternary (Ter C3)
Aggregate: 5–20 mm and 20–40 mm (Varennes)
Entrained air: 4 – 7%
Slump: 40 ± 10 mm
Other Technical Data
Sub-base: 700 mm, 0–112 recycled in situ
Base: 300 mm, 0–20 new – St-Bruno Quarry
Drainage: Lateral drains with storm sewers
Characteristics
• Work completed in one year instead of two (accelerated schedule)
• Very thick slabs (310 and 320 mm)
• Concrete supplied from a stationary plant (Plant No. 2)
• Skewed tining (3 – 6 mm deep)
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435, Trans-Canada Hwy.
Longueil, Québec J4G 2P9
Tel.: (514) 522-7220
Fax: (514) 525-9459

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