Key Lock Joint System

• Joint and stake interlock, eliminates joint floating or rising from the stake.
• Eliminates time consuming process of wiring, screwing, or nailing joint to a stake or peg.
• Square top designed to minimize spalling and provide for expansion to control cracking.
• Eliminates checker boarding, edge curling, and saw cutting.
• Saves on installation time - stakes interlock with joint at any point . . . joint splice eliminates need to place stake at joint butts.
• Each keyway individually designed for maximum load transfer with keyway centered in slab.

Installation
Stretch line over entire length. Drive stakes at approximately 20’ centers. Install stakes at finish floor elevation on approximately 2’ centers, with five stakes per 10 feet of material. Additional stakes shall be used for support if bearing soil conditions require. The joint shall be hung on the steel stakes. This action will interlock joint and stake. Install joint splices for perfect alignment of butt ends. Clips are only used when the pour is started on the stake side first. On continuous pours, concrete shall be placed to full depth on both sides of joint simultaneously. Finish the concrete flush to top of the metal joint. Do not edge joint!

Material
Key-Loc Joint is of 24 gauge galvanized steel with dowel knockouts 6” on centers. It is furnished in 10’ lengths for 4”, 5”, 6”, and 10” - 12” slabs. Supporting ratchet top stakes manufactured from 13 gauge steel available in 12”, 15”, 18”, 21” and 24” lengths.