Concrete Mixer Drum Cleaning

Removing Old, Dried-On Cement

Turn on the mixer and allowing it to spin. Put some water into the mixer. While it is spinning, gently tap the outside of the drum with a rubber mallet or small hammer. Not to make big dents on the drum. The cement should begin to break up and fall off the wall when you hit the outside of the drum. After the large chunks are removed, open the release and allow the water and chunks of cement to drain out. Use a chisel to knock off any remaining chunks from the surface. Then, put on protective gloves and goggles. To remove the final layer of cement, pour one part hydrochloric acid into two parts water in a bucket. To add the acid mixture to the barrel and keep it spinning. The acid could remove the final layers of cement from the surface. Tilt the mixer so that the acid/water mixture reaches all the way to the edges of the barrel. Once the cement is removed, drain and dispose of the acid appropriately. Rinse the drum out completely with water. A hose or pressure washer is useful for this. Allow the mixer to dry before storing.

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Cleaning Away Fresh, Wet Cement

It is easy to maintain after a cement mixer is properly cleaned. The key is to clean it promptly after each use. To fill the mixer with 3-4 gallons of water. Add in a couple shovels with crushed rock. Turn the mixer on and allow it to spin. The gravel will move with the water and scrape the cement off of the sides. Tilt the machine to clean all the way to the edges. Once the cement has been removed, drain the water and gravel. Use a hose or pressure washer to remove any remaining residue from the interior and exterior of the machine.Dry the machine prior to storing.

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