How to Clean a Concrete Slab

Written by kimbry parker
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How to Clean a Concrete Slab
Clean concrete slabs before applying paint, stain or other products. (concrete image by Empath from Fotolia.com)

Concrete is a durable material that can withstand a lot of wear and tear. That isn't to say that a concrete slab won't get dirty. Whether the concrete slab is in your driveway, patio, walkway or garage, cleaning it periodically will help to ensure it looks presentable. It is especially important to clean a concrete slab thoroughly if you are laying flooring, or staining or painting the surface.

Skill level:
Easy

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Things you need

  • Broom
  • Garden hose
  • Stiff-bristled non-metallic scrub brush
  • Bucket
  • All-purpose cleaner

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Instructions

  1. 1

    Sweep the concrete with a broom to remove loose dirt, dust and debris. Thoroughly soak the concrete with water from the garden hose.

  2. 2

    Scrub the concrete briskly with a stiff-bristled non-metallic brush. This will help to minimise the amount of cleaner that will be absorbed into the concrete.

  3. 3

    Fill a bucket with a solution of warm water and an all-purpose cleaner. Follow the mildest mixing instructions on the bottle of cleaner. Formula 409, Simple Green and Fantastik are a few examples of all-purpose cleaners.

  4. 4

    Scrub the concrete with a stiff-bristled non-metallic brush and the bucket of cleaner. Make sure to overlap your scrubbing strokes to ensure all of the concrete slab is cleaned.

  5. 5

    Rinse the concrete promptly with water from the garden hose.

Tips and warnings

  • If you are cleaning an indoor concrete slab, wet it down thoroughly with a mop and plain water, then scrub with scrub brush. Mix up an all-purpose cleaning solution, scrub the concrete, then rinse with a mop and clean water.
  • Outdoor concrete slabs can also be cleaned using a power washer. Indoor or outdoor slabs can be cleaned using a steam cleaner.

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