How to Resurface Concrete Spalling


Concrete is a durable and tough material used for construction and paving. Because concrete needs to be mixed on the spot, sometimes the mixture is not mixed well, and the concrete surface gets damaged over time. For example, spalling, also known as flaking or chipping, occurs when too much water is used in the concrete mix. If you notice that the surface of your concrete paving is starting to crumble and chip away, the best solution is to lay a new surface over the concrete. This process is called resurfacing the concrete.

Things You'll Need

  • Broom brush
  • Circular saw
  • Concrete resurface product
  • Chisel
  • Hammer
  • Concrete mix
  • 2-by-4 tool
  • Curing compound
  • Prepare the old concrete for resurfacing. Remove loose concrete parts and particles, as well as the dirt and dust on the concrete surface. Wipe the surface with a hard broom brush after all the loose material has been removed.

  • Inspect the concrete to see if the spalling is only in one specific area, or if it is scattered in several areas. Often, the spalling is only in one area.

  • Cut away the crumbled and broken part of the concrete. Use a circular saw with a special masonry blade to make the cut.

  • Chip and break away the cut part of the concrete, using a chisel and a hammer. Tap the chisel with the hammer and make sure to break the whole affected area into pieces. Remove all the pieces and debris of the spalled area.

  • Make the concrete mix according to the manufacturer's instructions. Make sure that all the ingredients are carefully measured and that the process of mixing the concrete is correct and precise.

  • Pour the concrete into the damaged area. Check to see if the level of the concrete patch isn't higher than the existing concrete level near it.

  • Smooth the surface of the new concrete with a 2-by-4 tool until it is even. Leave the concrete to dry and harden according to manufacturer's instructions.

  • Spray curing compound to the concrete surface. The curing compound assures that the concrete will cure properly through water retention. Make sure to wet the area with a spray hose during the next 48 hours. Avoid touching and using the surface during the next four weeks to let the concrete cure completely.

Tips & Warnings

  • Use extreme caution when working with a circular saw for cutting concrete. Wear safety goggles to protect your eyes from the dust and also wear durable gloves to protect your hands.

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  • Photo Credit Concrete street cracks image by Dreadman from
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