Install Concrete Driveway Expansion Joints

Many concrete and asphalt driveways have expansion joints that install across the driveway at intervals to prevent the driveway from cracking with ground movement or soil expansion. Joint spacing in feet contraction joints may be tooled into the concrete surface at the time of placement. In addition to control joints an isolation jointshould be installed where the driveway meets a sidewalk garage floor slab and other existing pavements.

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As you finish pouring each section of your driveway slip an expansion joint into the form between the section you ve just poured and the section you are about to pour.

Install concrete driveway expansion joints.

Joints are commonly spaced at distances equal to 24 to 30 times the slab thickness. The easiest way to add expansion joints is to do it during the pouring of your cement slab. Like subscribe and follow the f. This video will demonstrate how we go about installing expansion joints also know as deep joints.

Most concrete driveway installation costs between 1 800 and 6 000 or 4 to 15 per square foot. If your driveway is 12 feet wide then space control joints every 12 feet to make symmetrical slabs. Joint spacing that is greater than 15 feet require the use of load transfer devices dowels or diamond plates. Wonder what looks best and holds up.

Watch as i review 5 ways of filling concrete expansion joints and my personal favorite. Check out the complete project here. Cover the slab with plastic sheets or. The pro will level the concrete smooth it and finish it before cleaning and sealing the driveway.

Without a concrete expansion joint your sidewalk or driveway would crack. Control joint depth all control joint depths must be a minimum of 1 4 the thickness of the slab. Curing after the concrete finishing is done the curing process must start. Removing old material from a concrete expansion joint concrete expansion joints are also known as isolation joints.

Like i said in the intro these joints allow concrete pads to expand and contract during freeze thaw cycles. Your concrete installer should hand tool or sawcut them to a depth equaling one fourth the slab thickness or 1 inch for a 4 inch slab. Wooden or felt expansion joints joint trowels or specially cut concrete can support the individual sections. Joint spacing in meters.

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