DOWELBAR SLEEVE SYSTEM
Description
CORKJOINT® DOWELFORM® Dowelbar Sleeve System is a two part system comprising a rigid PVC dowelbar sleeve and a reusable rigid PVC nailing plate. Dowelform is suitable for use with 20mm, 25mm and 32mm round or square dowelbars.
DOWELFORM® Dowelbar Sleeve System allows for longitudinal movement as well as lateral (sideways) movement of the dowelbar for maximum joint performance. Compressible fins on either side of the sleeve enables the dowelbar to move sideways and locate the dowel centrally. The end cap has an inbuilt 20mm shear pin to allow for expansion of the concrete of up to 20mm.
DOWELFORM® Dowelbar Sleeve System allows your dowelbars to be parallel to the subgrade and properly aligned. You can also achieve lateral (sideways) movement of +/-10 mm for round and square bars which will help to reduce internal stresses on the concrete.
DOWELFORM® Dowelbar Sleeve System allows the engineer to specify dowels in both directions where transverse and longitudinal joints meet as all joints are now free to move independently of each other. (Refer to Figures 2 & 3 in the Product Brochure)
Uses
Construction joints, contraction joints, expansion joints in industrial buildings, roadways, curved joints, post tensioned slabs and new to existing concrete.
Advantages
Suitable for use with round and square dowels
Allows for 20mm of longitudinal expansion movement of concrete
Allows lateral (sideways) movement of all dowels
No misaligned dowels to restrict joint movement
Can prepare formboards with nailing plates prior to installation
Eliminates drilling holes through formwork
No dowelbars protruding from concrete Nailing plates are re-usable
No need to coat dowelbars with bitumen, grease or de-bonding agents
No need to apply an expansion cap on end of dowelbar
Dowelled joints possible in all directions Suitable for post tensioning
Application
Use a stringline to indicate height for Dowelform® dowelbar sleeve on formboard, mark the centre spacings of dowelbars required along stringline.
Nail Dowelform® nailing plate to formboard at the required/specified spacings.
Refer to the Product Brochure for diagrams and additional installation information.
After steel reinforcement is in place, slide the Dowelform® dowelbar sleeve over the nailing plate. Extra support may need to be positioned under ends of Dowelform® for long dowelbars.
Pour concrete being careful to ensure vibrator does not come into contact with dowelbar sleeve. When formboards are removed, the nailing plates stay attached and are ready for your next use.
Shape
Round
Square
Packaging
20mm cut to length to suit
25mm cut to length to suit
32mm cut to length to suit
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