Introduction

If only a small area is damaged, patch the hole only and level it off. For large holes, patch with a strong mortar mix before applying self-leveling compound.

Step 1

Dust Out any Loose Material from Hole in Concrete

2009 Dorling Kindersley Limited DK - Do It Yourself Home Improvement

DK - Do It Yourself Home Improvement, 2009 Dorling Kindersley Limited

Remove Dust and Debris

Dust out any loose material or debris from the hole using a dusting brush.

Step 2

Dampen Hole in Concrete with Glue Solution

2009 Dorling Kindersley Limited DK - Do It Yourself Home Improvement

DK - Do It Yourself Home Improvement, 2009 Dorling Kindersley Limited

Dampen the Hole

Dampen the hole with some glue solution made up of four parts water to one part glue.

Step 3

Press Mortar into Hole in Concrete Floor

2009 Dorling Kindersley Limited DK - Do It Yourself Home Improvement

DK - Do It Yourself Home Improvement, 2009 Dorling Kindersley Limited

Add Mortar

Once the glue is tacky, press some mortar into the hole and use a gauging trowel to smooth it over.

Step 4

Concrete Floor Solutions

  • It is possible to improve a rough floor surface by adding a self-levelling compound to fill in cracks and gaps.
  • After removing an old floor covering, such as cork tiles, use floor scrapers and commercial solutions to remove adhesive remains and bitumen-based products before laying a new floor covering. Otherwise, most self-leveling materials laid over a bitumen base will fail to adhere properly and may cause further problems.
  • To protect a new concrete floor, seal it with a concrete sealer.