Concrete does tend to crack and spall after use and exposure to weather and will need repairs with the right cement based products. Before you attempt any concrete repair Brisbane, you need to clean the surface of the area of concrete that has been damaged and remove all the material that has come loose or where the surface gives out a dull sound of the material having flaked. Use a hammer or chisel and hammer to remove these materials.
The area must then be scrubbed clean and again examined for further cracks or loose material. The area to be repaired must then be rinsed with water to give it some dampness, that is essential for any patching compound to bond properly with the damaged surface.
Patching compounds must be mixed as instructed by the manufacturer and this mixture must be applied on the surface that needs repairs. Finish the patch to match the surrounding concrete. Protect it from traffic for a couple of days and cure it if necessary.