Concrete makes a sturdy and hard wearing material for garden paths. However, concrete does require regular repairs to maintain its level surface and prevent undesired weed growth. The natural movement of earth under concrete may cause unsightly cracks, gaps and other blemishes that provide a space for weeds to grow and cause a tripping hazard. Fortunately, just about anyone can repair simple cracks in a concrete path without the help of a professional.
Chisel the crack in order to make the bottom of the crack larger in area than the top. This forms a well for the patch mix to fit. For hairline cracks, skip this step.
Remove loose dirt, dust and gravel from the crack or blemish with a wire brush. Spray the blemish clean with a garden hose.
Brush cement adhesive into the crack or blemish while it's still wet from the hose.
Wet the cement patch mix as per the manufacturer's instructions until it forms a thick paste. For large pits or broken corners in a concrete path, use latex cement.
Force the cement patch material into the crack and smooth with a trowel. For large pits or broken corners, pour the latex cement into the blemish 6.5 mm (1/4 inch) at a time and allow it to become tacky between pours.
Allow the cement patch mix to dry for two hours. Then, cover with plastic and hold the plastic down at the corners with heavy rocks. If using latex cement, allow it to dry without a cover.
Keep the path under plastic for five days. Lift the plastic once a day and spray the concrete patch with water.