Polished Concrete Floor Expansion Joints
Note that flexible expansion joint filler does not protect the edge of the slab from damage.
Polished concrete floor expansion joints. When used in conjunction with polished concrete joint filler is ground and polished smooth to provide a seamless floor that is not only protected but easier to clean. For uniformity all rooms should be poured together and partition walls installed after the concrete is polished. Ccc polished concrete melbourne email protected office. Concrete s high compressive strength and hardness make the concrete useful for flooring applications in many industries.
Early entry saws make a nice clean cut for decorative concrete joints. Un bonded concrete screeds should be a minimum thickness of 75mm. Joint fillers also provide maintenance and aesthetics benefits by creating a sealed uniform surface free of open voids. For tips on this check out bob harris s video or get a copy of his guide to stamped concrete joints are covered in chapter 23.
As the name implies the expansion joint is a straight line groove cut into the surface of the concrete floor using a concrete saw. Joint spacing in feet contraction joints may be tooled into the concrete surface at the time of placement. Filling in expansion joints in polished and stained concrete floors provides an easier to clean surface and a smooth and finished joint where debris or dirt could gather. While in theory you can cut an expansion joint in concrete at any time it s better if this is a planned task.
Concrete is rigid in structure much like glass it does not bend or stretch without cracking. Joint spacing in meters. An expansion joint is a joint left completely free of mortar and filled with elastomeric sealant to keep it watertight. 03 9761 5233 showroom by.
Expansion joints on the other hand are true structural joints separating different sections of the building typically used to accommodate thermal and moisture expansion in concrete. Polished concrete floors in melbourne for homes factories commercial properties. Saw cut contraction joints are ideal for decorative concrete because the joint is narrower and cleaner than a tooled joint. This type of concrete joint filler can be used in new construction in control joints or in existing concrete floors where traffic is high and concrete joints need protection.
These are the joints that we come across most often in warehouses and industrial buildings. Joints are commonly spaced at distances equal to 24 to 30 times the slab thickness. Spec sheet on pouring concrete suitable for polishing concrete must be laid extremely well and flat. 1300 476 547 showroom.
Control and expansion joints should be filled on exposed concrete surfaces. Make sure concrete is floated up to the edge of the wall. Check out our website polished concrete showroom.