Metal Keyed Control Joints
QuicKey™ Detail
QuicKey™ Install
PRO-KEY™ Install
Accessories
Nail on Keyway
Installation and
Technical Data
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PRO-KEY™ Detail
| CAT # |
Slab |
A |
B |
C |
Knockout |
| 3500 |
4" |
3 1/8" |
2" |
3/4" |
7/8" |
| 4500 |
5" |
4 1/8" |
2 1/2" |
3/4" |
7/8" |
| 5500 |
6" |
5 1/8" |
3" |
3/4" |
7/8" |
| 7500 |
8" |
7 1/8" |
4" |
3/4" |
1 1/4" |
| 9500 |
10"-12" |
9 1/8" |
5" |
3/4" |
1 1/4" |
 
Advantages of PRO-KEY™
- Positive stake-to-key lock of PRO-KEY [Patent No. 5380122] prevents costly delays associated
with resetting key joint when floating concrete. Stakes interlock with
slots to prevent the key from rising off the stakes.
- Location of the key is 1/2 depth of slab as specified by ACI &
PCA.
- LOCK SLOT stakes double as a butt splice.
- Radius formed key eliminates the sharp angles that produce a spalling
tendency.
- ULTRA FINE profile at top edge eliminates surface voids, reduces spalling
and produces architecturally pleasing joint lines in the finished slab.
- Tongue and groove design provide excellent load transfer characteristics
for heavy wheeled traffic and prevents uneven settling associated with aggregate interlock.
- Eliminates costly form stripping and saw cutting. Replaces the slow and costly method of
checker-board placement of concrete.
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