Temporary Concrete Barrier Wall Standards in Ontario
There are a few different types of temporary, precast concrete barrier walls approved for use in the Ontario province of Canada. Each of these temporary barrier wall types meets stringent standards in terms of construction and the amount of safety they are able to provide on roads. Here are the major types of temporary barrier walls approved for use in Ontario, with information on which manufacturing companies are approved, and some information about their specifications and installation:
I-Lock
This concrete barrier wall type’s standard number is OPSD 911.140. The I-Lock barrier wall has an exposed flange that is cut symmetrically in the center so that its width is 70 mm. Its rebar and stirrups are size 10M, Grade 400W, and its concrete cover is at least 50 mm. The I-Lock’s concrete edges have 15x45’ chamfer. Additionally, its welds must meet CSA W59 and CSA W186 standards. If installed as a permanent barrier, its 50 mm recess must be filled with grout or otherwise not have a recess.
It is manufactured by most major barrier wall producers, including All-Cast Concrete, Anchor Concrete Products Ltd., Central Precast Inc., Con Cast Pipe Inc., DECAST Ltd., Facca Inc., Fisher Wavy Inc., Hy-Grade Precast Concrete Ltd., M CON Products Inc, McLean Taylor Construction Ltd., M-Con Pipe & Products Inc., Miller Precast Ltd., Pedersen Construction Inc., Powell Contracting Limited, Power Precast, Rainbow Concrete Industries Ltd., Utility Structures Inc., and Villeneuve Construction Co. Ltd.
Type J
This barrier wall type has a standard number of OPSD 911.150. Type J barrier walls have a minimum horizontal radius of 31m. Their concrete covers must also be at least 50mm. Concrete edges must have 15x45’ chamfers. Welds must meet CSA W59 standards. Type J precast concrete barrier wall comes in 4m and 6m varieties.
Approved Type J walls are made by All-Cast Concrete, Co-Pipe Products Inc., and Hy-Grade Precast Concrete Ltd.
Type M
The standard number for this type is OPSD 911.160. The Type M variation has test specimen with a tensile elongation that is greater than 14%. Its reinforcing steel bars are Imperial size ¾-inch in diameter, Grade 60 ASTM A706. After pin installation, lack should be removed from joint. Minimum horizontal radius should be 26m. Connection pin and plate should be welded based on CSA W59 standards.
Approved Type M walls are manufactured by: All-Cast Concrete, Belluz Concrete & Rentals Ltd., DECAST Ltd., McLean Taylor Construction Ltd., M-Con Pipe & Products Inc., Miller Precast Ltd., Pedersen Construction Inc., Powell Contracting Limited, Rainbow Concrete Industries Ltd., Utility Structures Inc., and Villeneuve Construction Co. Ltd.
Type T
This approved option has a standard number of OPSD 911.180. A Type T wall has a minimum horizontal radius of 26m. Its system configuration must meet the NCHRP Report 350 TL-3 and AASHTO MASH TL-3. Its concrete cover is 50 mm at a minimum. Any of its concrete edges must have a 15x45’ chamfer. Welds should follow CSA W59 guidelines. 4m and 6m Type T walls are approved.
It is manufactured by All-Cast Concrete, Con Cast Pipe Inc., DECAST Ltd., Durisol, Hy-Grade Precast Concrete Ltd., M-Con Pipe & Products Inc., Powell Contracting Limited, Power Precast, and Utility Structures Inc.
Barrier wall specifications change by state and province in both Canada and the United States. To learn more about which temporary precast barrier walls are permitted in your area, check out our blogs on temporary barrier wall specifications in Ohio, Florida, and more.
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