In Slab

Connolly Key Joint

The Connolly Key Joint is a galvanized steel tongue and groove formwork that becomes part of the slab, forming the control joint. Its unique fixing system makes installing simple and at least twice as fast as the conventional formwork methods.

 CANZAC Keyjoint is commonly found in residential house slabs. A free joint is achieved by separating a slab with the Keyjoint set in place by using the supplied peg and wedge system.

Keyjoint is a galv profile (see sizing chart below for heights and hole knock outs etc). Because it is a thin galv length care needs to be taken before and during the pour. It is a single pour system and isn’t strong enough to be used as a stop pour. 

Pour some dabs of concrete around the pegs and if pumping, pump directly over the key joint and take care until you are confident it is set in place. 

If a speed dowel is specified you can easily for 100mm slabs insert the dowel and sleeve through the pre punched knockouts and wire them to your mesh

KEY FEATURES
  • Eliminated traditional checker boarding technique
  • Eliminates ponding as it can be used to maintain drainage falls
  • Control cracking on large slabs, including houses and factories

Supplied with one wedge and one dowel peg per 750mm for normal use.

keyjoint cross
2015 06 02 10.14.25
SIZE CHART
Product Code KJ100 KJ150 KJ200 KJ300
Base material 0.4 mm steel. Galvanised 200 gm /m2 0.55 mm steel. Galvanised 200 gm /m2 0.55 mm steel. Galvanised 200 gm /m2 0.75 mm steel. Galvanised 275 gm /m2
Height 90 mm (for 100 mm slab thickness) 135 mm (for 150 mm slab thickness) 180 mm (for 200 mm slab thickness) 270 mm (for 300 mm slab thickness)
Length 6.0 m standard length
3.0 m
(custom lengths also available)
6.0 m standard length
3.0 m
(custom lengths also available)
6.0 m standard length
3.0 m
(custom lengths also available)
6.0 m standard length
3.0 m
(custom lengths also available)
Knock-out sizes and spacings

Refer below*

Refer below*

Refer below*

Refer below*

Tongue slope 1:3 1:3 1:3 1:3
Tongue depth 19.5 mm 24 mm 30 mm 36 mm
Peg & Wedge quantity Pack of 8 pegs and 8 wedges per 6.0 m length Pack of 8 pegs and 8 wedges per 6.0 m length Pack of 8 pegs and 8 wedges per 6.0 m length Pack of 8 pegs and 16 wedges per 6.0 m length
Peg material Deformed mild steel bar.
Fibreglass pegs also available
Deformed mild steel bar.
Fibreglass pegs also available
Deformed mild steel bar.
Fibreglass pegs also available
Deformed mild steel bar.
Peg diameter 8.5 - 9.5 mm 8.5 - 9.5 mm 8.5 - 9.5 mm 12 mm
Peg length 350 mm 390 mm 500 mm 750 mm
Wedge material 0.75 mm steel. Galvanised 275 gm /m2 0.75 mm steel. Galvanised 275 gm /m2 0.75 mm steel. Galvanised 275 gm /m2 0.75 mm steel. Galvanised 275 gm /m2
Wedge 
length
115 mm 115 mm 115 mm 115 mm
* Pre formed ‘knockout’ hole(s) available at 150mm centres/spacings.  ‘Knockouts’ suit Connolly dowel sleeves and dowel bars in 16mm round, 16mm square, 20mm round, 20mm square, 24mm round and 33mm round.

 

CONNOLLY KEYJOINT INFORMATION AND CODES

PRODUCT  

KJ100

(For 100-125mm thick slabs)

including Pegs and Wedges

KJ150

(For 150-175mm thick slabs)

including Pegs and Wedges

KJ200

(For 200-250mm thick slabs)

including Pegs and Wedges

KJ300

(For 300-350mm thick slabs)

including Pegs and Wedges

CANZAC CODE 16 020 16 206 16 320 16 460
UNIT 3m or 6m Lengths 3m or 6m Length 3m or 6m Length 6m Length

 

 

2015 06 02 10.13.40

Gallery

Permanent Capping cropped