Metal Keyway For Concrete Slabs

I m having a 24 x 18 4 slab poured tomorrow and the concrete guy said to use a keyway on the middle to have something to straight edge by and also be used for an expansion joint.

Metal keyway for concrete slabs. 16 gauge avail able on special order. To place an order or request more information please contact a sales representative. These relatively simple tools not only allow for multiple slabs or strips of concrete to be poured at once but they also minimize the risk of cracking within your slabs. Using the quickey system reduces installation time and provides for a smoother level pour.

This product is for use in concrete flatwork as a control or construction joint. Reduces edge curl on slabs. Though the installation of keyway joint does not appear to increase the load transfer efficiency of longitudinal joint it proves to help reduce the deflection of concrete pavement. Keyways are formed with templates of metal or wood.

The slab may be too thin. Keyfold joint systems. If keyways are to be used in such circumstances it might be well to thicken the edge to 6 inches and use a keyway made for a 6 inch thick slab. The slab is for a room addition.

Proper steps for using screed key joints in concrete slabs to make pouring multiple slabs of concrete more efficient screed key joints can be used. This product is sold in 10 lengths. Quickey is a stay in place metal keyed control joint former. Is that true or will it be ok.

Keyways are not recommended for thin slab less than 250mm thick because of the difficulty in construction. The small amount of concrete above the keyway in a 4 or 5 inch thick slab offers less resistance to spalling than in a thicker slab. Any wood insert in concrete such as a keyway should be well soaked in water prior to concrete placement or be resin sealed. I though i remember reading that you shouldn t use one in a slab that thin.

Standard steel forms are often constructed with a keyway in place. Meets aci and pca recommendations. Helps minimize floating. Metal screed joint keyway concrete accessories.

K30 and k33 metal keyway center strip metal keyways are available to form keyways along longitudinal and transverse joints in concrete slabs. It is a stay in place metal keyed control joint former. It has square knockouts for square and round dowels. We offer a galvanized keyfold joint system for concrete slabs in depths of 3 4 6 8 10 and 12.

We will go back after a few days and saw cut lines through. The false form k30 is fabricated in 18 gauge metal for 8 to 12 slabs. Qk35 is used in concrete applications. In this video i take you along as we pour a 36x46 concrete slab for a steel building to go on.