How Do You Fix a Concrete Hatch in AutoCAD?

Concrete hatches are widely used in AutoCAD to provide access to underground utility networks or concealed spaces. However, over time, these hatches may deteriorate or become damaged due to various factors such as heavy loads or harsh weather conditions. In this tutorial, we will explore the step-by-step process of fixing a concrete hatch in AutoCAD.

Step 1: Assess the Damage

Before you begin fixing the concrete hatch, it is essential to assess the extent of the damage. Look for cracks, chips, or any other visible signs of deterioration. This will help you determine the appropriate repair method.

Step 2: Prepare the Tools and Materials

Once you have assessed the damage, gather all the necessary tools and materials for the repair. You will typically need:

  • Safety goggles to protect your eyes from debris
  • Gloves to safeguard your hands during the repair process
  • Chisel and hammer for removing loose or damaged concrete
  • Cement patching compound to fill in cracks and chips
  • Trowel for applying the patching compound smoothly
  • Sandpaper or a wire brush for preparing the surface before patching
  • Clean water and a sponge for cleaning the area before and after repair

Step 3: Clean the Area around the Hatch

Prior to repairing the concrete hatch, it is crucial to clean the surrounding area thoroughly. Use a sponge soaked in clean water to remove any dirt, dust, or loose particles. By doing so, you will ensure better adhesion of the patching compound.

Step 4: Remove Loose or Damaged Concrete

Using a chisel and hammer, carefully remove any loose or damaged concrete from the hatch area. Be cautious not to cause further damage to the hatch structure during this process. Once the loose concrete is removed, clean the area again to eliminate debris.

Step 5: Apply the Cement Patching Compound

Now it’s time to apply the cement patching compound. Follow the manufacturer’s instructions for mixing the compound with water in a separate container.

Use a trowel to spread the mixture evenly over the damaged areas of the concrete hatch. Ensure that all cracks and chips are thoroughly filled with the patching compound.

Step 6: Smooth and Shape the Patch

After applying the patching compound, use a trowel to smooth and shape it to match the surrounding concrete surface. Make sure that there are no visible irregularities or bumps on the repaired areas.

Step 7: Allow for Proper Curing Time

Curing time is crucial for ensuring a durable repair. Follow the manufacturer’s instructions regarding curing time and avoid subjecting the repaired hatch to heavy loads or excessive moisture during this period.


  • If required, use sandpaper or a wire brush to smoothen rough edges before proceeding with Step 5.
  • Consider applying a sealant after curing to enhance longevity and protect against future damage.
  • Maintain regular inspections of your concrete hatches and address any damage promptly to prevent further deterioration.

By following these steps and taking necessary precautions, you can successfully fix a concrete hatch in AutoCAD. Remember, proper maintenance and timely repairs are essential for prolonging the lifespan of your concrete hatches and ensuring their functionality.