Pebble gravel is a way to cover the dull grey expanse of concrete with a colourful, textured surface. Compared to other concrete overlays, a pebble dashed surface is simple to create. You just mix the small pebbles with epoxy, then spread where needed. The epoxy binds the pebbles together to form a strong durable covering over the concrete. The mix cures quickly into a surface that's safe enough to walk on for poolside use, while still being strong enough to serve as a drive covering.
- Skill level:
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Things you need
- Power washer
- PH-neutral cleanser
- Pebble gravel
- Two-component epoxy
Clean the surface of the concrete with a broom to remove any loose dirt or debris. Power wash the surface after sweeping to remove tough dirt deposits. If no drain is present, damp mop the concrete with a pH-neutral cleanser and warm water. Rinse with clean water and allow the concrete to dry.
Pour the pebbles into a pile on the concrete slab.
Mix the two-part epoxy in a 22.5 litre (5 gallon) bucket. Stir the epoxy for five minutes to make sure it's thoroughly mixed. Mix only enough epoxy and pebbles to cover a spreadable section before the epoxy dries.
Pour the epoxy over the pebbles on the ground. Have an assistant fold the epoxy into the pebbles, using a spade to mix them together until all of the pebbles are wet with the epoxy.
Spread the epoxy-covered pebbles over the surface of the concrete with a trowel in an even layer 6 mm (1/4 inch) thick. Wipe off the edge of the trowel with acetone to remove sticking epoxy and pebbles during the spreading process. Work from the far corner of the concrete slab to an exit area. Recreate expansion joints as you go along by slicing the edge of the trowel through the epoxy along the concrete joint lines.
Allow the epoxy 24 hours drying time before using the surface.
Tips and warnings
- Spread an epoxy primer to the concrete and allow it to dry before applying the pebble and epoxy mix to create a binder between the concrete and the pebbles.
- Only apply the epoxy/pebble mixture during dry weather. Cover with a plastic sheet if it begins to rain to prevent discolouration.
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