How to clean concrete?

There are two main problems which will necessitate cleaning. Bridging occurs when the material consolidates at the base of the silo. Rat holing occurs when the material starts to adhere to the side of the silo. This will reduce the operating capacity of a silo as well as leading to cross-contamination of newer material with older material. There are a number of ways to clean a silo and many of these carry their own risks. However since the early 1990s acoustic cleaners have become available. These are non-invasive, have a minimum risk profile and can offer a very cost-effective way to keep a silo clean.