How to repair a concrete path

Tony
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How to repair a concrete path

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Project Overview

If you have a broken concrete path in your garden, you might want to repair it yourself. We show you how to replace broken concrete with a freshly laid slab. You will see how to build formwork, as well as pour and level concrete. We will also show you how to give your new path professional looking edges and joins.
Continue to step-by-step instructions

Step by Step Instructions

1 Remove the damaged concrete from the path
2 Make a straight edge for the concrete path with formwork
3 Make a curved edge for the concrete path with formwork
4 Pour concrete into the formwork mold and level it off.
  • Step 1. Remove the damaged concrete from the path

    Use your concrete saw to cut the damaged parts from the rest of the path. Then use your sledgehammer, or the blunt end of a crow bar, to break the damaged concrete into manageable pieces. Once that is done, use the blade of the crow bar to pry the broken concrete up so you can throw it away.
  • Step 2. Make a straight edge for the concrete path with formwork

    Use a shovel to level out the area you are planning to concrete. For a straight edge, line up your formwork with the existing concrete path. Then set the height of the timber so that the top is level with the height of the existing path. Then secure it in place by hammering wooden pegs on the outside edge of the timber.
  • Step 3. Make a curved edge for the concrete path with formwork

    To make a broad curved edge with formwork, simply bend the timber into shape and peg it in place. To make a tighter curve you need to do the job in stages. Start by pegging a broad curve in place. Then pour water over the timber to make it flexible. Once the water has seeped in to the timber, pull the formwork in tighter and peg it down. Once again, make sure the top of your edging is level and set at the height of your existing path.
  • Step 4. Pour concrete into the formwork mold and level it off.

    Pour the concrete into your formwork mold then use your square mouth shovel to spread it evenly around inside the formwork. Make sure all the corners are properly filled and leave the concrete raised 1cm or so above the formwork. Then use your straight edge to level the surface. Work the straight edge side to side across the formwork, pulling from one end towards the other as you go. This will level the surface.

Tools and Materials

Tools

  • Concrete cutting saw
  • Concrete edger
  • Concrete finishing float
  • Concrete joining tool
  • Crow bar
  • Dust mask
  • Ear muffs
  • Gloves
  • Jarrah formwork
  • Safety glasses
  • Shovel
  • Sledgehammer
  • Spirit level
  • Straight edge

Materials

  • Concrete mix
  • Timber pegs
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Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
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