12 IN. PRO-KEY STAKES METAL KEYED CONCRETE CONTROL JOINT SYSTEM

Key Features

• 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.