Is your garage floor slab cracked, broken or deteriorated? The only way to properly resolve this issue is to replace the slab, we recommend not using a “band-aid” overcoat solution as it will not fix the underlying issues. Most existing garage floors are not built on a solid base and are not reinforced with steel mesh to prevent future movement.
Our team of skilled concrete floor contractors understand the most important step in the process is to make sure the ground or "foundation" beneath the slab doesn't settle or shift to avoid future cracking of the garage slab. We make it last for life, different from other contractors we do the little things like installing special "Legs" to support the steel mesh so that it is suspended in the middle of the concrete and provides the maximum reinforcement.
The process starts with removing the existing slab and gravel. Once demolition and removal have been completed we change the plumbing and install a new reinforced PVC drain box. We then add a layer of ¾” stone and compact and lay a thick sheet of plastic known as a "Vapor Barrier” to prevent water from moving through the porous concrete. In preparation for the concrete a raised steel mesh is installed on small supports to reinforcement the floor. Finally the concrete is poured using specific concrete mix designed to resist our local freeze/thaw cycles and then smoothly finished. One day later, expansion joints are cut in the slab to reduce stress on the cement and this provides the final guarantee against the cement cracking.
Concrete doesn't dry out, it undergoes a chemical curing process that creates a dry, solid mass. The top surface needs to remain wet while the curing process takes place. When hot we often suggest spraying water on top of the slab to reduce evaporation to strengthen the slab.
Servicing Montreal, Laval and the South Shore for over 3 decades Akton has specialized in the repair and reconstruction of concrete slabs for over a quarter of a century. We know that the first priority is to properly repair your garage floor. Just give us a call and our team of concrete repair contractors will work with you to find the best and most cost effective method to achieve a successful, long lasting floor repair.
Garage Floor Repair
Step 1: Clear garage floor of all materials and place plywood on driveway.
Step 2: Break the concrete floor into sizes the excavator can remove
Step 3: Excavate out (remove) cement floor and existing fill down approx 12 inches.
Step 4: Install a new reinforced PVC drain box and connect
Step 5: Backfill 7 inches of ¾ gravel DB certified
Step 6: Compact gravel
Step 7: Lay 6 mil vapour barrier to cut humidity
Step 8: Lay 3/16 steel mesh to reinforce the concrete
Step 9: Pour 5 inches of 32 MPA concrete
Step 10: Finish floor (standard finish)
Step 11: Cut expansion joints
Step 12: Remove all excess earth & clean work area
There are many reasons for a cement garage floor to require repairs, some more common than others: frost, soil compaction, settlement below the slab, water under the floor, poor construction, no steel reinforcement, poor quality cement and the age the cement. In Quebec we have another serious issue, older homes Montreal, Laval and the South Shore are subject to Pyrite damage.
Pyrite or "Fool's Gold" is a type of mineral that can sometimes be found in the gravel used under the garage floor concrete slabs that were created in and around the GTM (Greater Montreal Area). Pyritic backfill can be concentrated and eventually the excess Ferric Iron heaves upward until the slab lifts and cracks. Read more on our Garage Floor Pyrite Removal page
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