THE EFFECT OF THE USE OF CALCIUM OXALATE ON THE PROTECTION OF MARBLE OR LIMESTONE STRUCTURES AGAINST ACID RAIN

Abstract

In this study, it is observed that calcium carbonate in marble and limestone can form a calcium oxalate film on marble and limestone when it reacts with oxalic acid, which is a weak acid, in order to protect structures such as buildings, statues and historical monuments made of marble or limestone against acid rain. In this study, the durability of the calcium oxalate film against acid rain and how it differs from the others when compared to the previously used methods was measured by an experiment. As a result of the experiment, it is seen that the marble with calcium oxalate film is more durable than the others among the marbles that are not coated, coated with commercial marble paste and calcium oxalate film is used. In addition, while commercial marble paste cannot be used in finely embroidered structures such as sculptures and historical artifacts, calcium oxalate film is a suitable solution to use against damage caused by acid rain. In this way, it has been determined that the calcium oxalate film is more durable than other solutions and a more effective method for use in structures such as sculptures and historical monuments.