Concord Industrial Coatings Pty Ltd specialise and take pride within our company installing all types of caulking, internal and external joints using Silicone, Polyurethane and Fire Rated certified industrial sealants. We use a variety of products from all suppliers including Bostik, Sika and Dow Corning for any size project whether it’s residential, commercial or industrial.
What is Joint Sealing?
Joint sealing is where we seal the joints in concrete pavements to prevent the entry of surface water below the concrete slabs, into the substructure of the pavement. Water infiltration will dramatically shorten the durability of concrete. Water that penetrates to the sub base of the pavement will allow it to soften and become unstable. Joint sealing of a concrete slab also prevents the joints filling with non-compressible matter which will prevent expansion joints from allowing movement, thus shifting stresses to other points in the slab and eventually leading to irregular cracking.
Unsealed joints may allow a concrete slab to sink and crack. If utilized early enough joint sealing can defer and even eliminate the need for more expensive maintenance such as Slab Jacking/Stabilizing (Mud Jacking, Lifting, and Pressure Grouting) or in worst case, the much more expensive cost of complete reconstruction of the concrete slabs.
The use of joint sealing on a concrete pavement prior to an asphalt overlay slows and greatly reduces reflective cracking on the new pavement layer.