Acid can destroy all kinds of calcium compounds that are present in the concrete, for example, calcium silicate, calcium tahaiderot (C-S-H) haidaret (C-A-H), and Hibernate onmi calcium hydroxide (Ca (OH) 2) in most cases, the acid will react with the calcium compounds, he went and got the output as a salt, calcium, which easily soluble. When calcium compounds in a bird street thathuk changed to salt. It will make the area is corrosive lose adhesion. Especially among cement phet to the total mass Salt that has occurred can be easy to wash away. Make concrete damage and total mass emitted from concrete so easily.
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