How to Clean Cinder Block
Cinder block is useful for building retaining or foundation walls. The material is a delicate concrete, and ash is added to the concrete mixture. Cinder blocks can also be stacked, whereby you can create tables or prop up furniture. Before you can prime or paint cinder block, a thorough cleaning is in order. Also, cinder block should be cleaned at least once every six months to preserve it and prevent damage. Does this Spark an idea?
Things You'll Need
- Heavy-duty concrete cleaner
- Gallon sprayer
- Extendable scrubbing brush
- Hose nozzle
- Hose
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Instructions
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1
Buy a heavy-duty concrete cleaner and a gallon sprayer. These are available from stores such as Home Depot, Lowe's and Walmart.
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2
Pour the liquid concrete cleaner in the gallon sprayer. Follow all directions on the cleaning product. Some require water added while others are in powdered form. You may purchase a cleaner that is standalone and does not need water.
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3
Attach the nozzle to the hose. Turn on the outside faucet and twist the nozzle setting to heavy spray. Hold the hose roughly five feet away from the cinder block. Use a sweeping motion to wash away any loose dirt particles and debris.
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4
Spray the cleaner over the entire cinder block surface. If a large area needs a cleaning, you may wash in sections. Drench so the area is completely damp with the solution.
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5
Wait roughly eight minutes before scrubbing the cinder block. Scour the concrete with the extended scrubbing brush in rows starting from the bottom and moving upward. Scrub back and forth twice in a row before going up. Continue until you scrub the entire surface.
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6
Turn the hose nozzle setting to rinse. Sweep the water spray over the cinder block. Remove the remaining dirt and cleaning solution.
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Tips & Warnings
If you desire, wear gloves and goggles for protection.
Use a pressure washer instead of a hose if one is available.
Repeat steps 3 to 5 if dirt or a film remains on the block.
Check the cleaning product label for warnings. Some solutions may be dangerous to plants or animals.
