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Pay attention to the corrosion and protection of concrete tanks

2025-10-28View Original

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In the corrosion prevention design of concrete tanks, the protective material and the concrete base work together by being bonded to each other; leakage can occur due to deformations such as uneven contraction of the two materials during use, or as a result of damage caused by human factors. The first challenge posed by leaks is the difficulty in locating the source of the leak; the location where leakage is visible on the surface is often not the actual site where it is occurring. After leakage occurs in the anti-corrosion layer, the liquid not only changes its path between the anti-corrosion layer and the concrete, but also alters its course once it enters the concrete layer. Therefore, it is very difficult to identify the exact point of leakage. To date, no \"CT scanners or MRI machines\" from the engineering field have been widely put into use. Furthermore, even if the leak location is found, repairing the leak is very difficult. Most tank containers require one or two layers of protective ceramic bricks (or porcelain plates) on top of the anti-corrosion layer; during repair, these layers are removed first before the anti-corrosion layer is repaired. Removing the protective layer, in turn, damages the intact anti-corrosion coating, thus creating a vicious cycle. Therefore, once a leak occurs, people are often at a loss and can only do nothing but allow it to leak openly without any solution. In some tank containers, there are no visible signs of leakage at all; in reality, the corrosive liquid has already penetrated through the protective coating and into the concrete, causing the rebar within the concrete to rust. In severe cases, this can lead to tank explosions, resulting in property damage and threats to human life – the consequences are unimaginable. Therefore, properly preventing corrosion in concrete tanks has become a key task for engineering technicians. Once the tank containing the corrosive solution is put into use, leaks can disrupt regular production. Currently, in heavy non-ferrous metal smelting enterprises, hundreds or even thousands of concrete tanks are in use, and their application scope is quite wide.

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