Removal and prevention of marble floor damage and

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◆ damage to marble floor

we often see local or large-scale damage to the stone floor in some high-end hotels and other large public places, such as cracks, crushing, pulverization, holes and so on. These phenomena are particularly common on marble floors. Because these damaged parts are easy to be polluted and difficult to remove, people will see the ground full of dirt and holes, which greatly reduces the use value and effect of stones. However, people can not easily and simply replace these damaged stones. On the one hand, it will cause great losses in materials and labor. On the other hand, the owners can't bear the relevant losses caused by the shutdown and replacement of stones. Therefore, it is very important to explore and use some effective methods and materials to repair the damaged stone floor

I. causes of stone ground damage

1. The settlement and tearing of the ground foundation lead to stone cracking

2. External damage leads to the damage of ground stones

3. Choosing marble from stone to lay the ground will leave future problems. On the one hand, when people choose stone, they often only pay attention to the tone, without considering the differences between marble and granite in weather resistance and wear resistance. On the other hand, most of the imported stones were marble at first. At that time, the processing technology of granite was not as advanced as it is now, and most of the colors and styles of marble were elegant, which made it a fashion to use marble indoors, which is also a main reason why there are many problems with marble now

4. Natural defects of marble. Some marbles have many natural defects, such as cracks, sand holes, looseness, and entrainment. If these defects are not repaired and made up in advance, once they are laid on the ground and subject to moisture and some harmful pollution, they will take the lead in pathological changes and damage in the defective parts and thus expand. Like silver thread beige, Golden Flower beige, coffee net, etc

5. Humid environment. The main component of marble is calcium carbonate, which will expand under the action of water, so the loose part of the stone structure will burst first, leaving a stone pit on the marble floor. The formed stone pit will continue to pulverize in a humid environment, making the surrounding rocks loose

6. Wrong protection methods. In terms of the owners and constructors, although they painted protective agent on the marble in advance, there were still problems when it was paved on the ground, because the cracks and loose parts of the stone were not well repaired, and the large water pressure on the back of the stone due to humidity soon destroyed it. On the other hand, although the front of the marble is also protected, the moisture on the ground will also enter the interior of the stone along the cracks and loose parts of the stone, increasing the humidity of the stone, thus forming a vicious cycle

7. Wear destroys the luster of the marble surface. The hardness of marble is low and the strength is poor. Therefore, the marble ground, especially the place where people walk more, will soon lose its luster. Such as corridor, lobby, counter, etc

II. Countermeasures to prevent stone floor damage

based on the analysis of the causes of the above stone floor damage, we can see that in addition to trying not to choose marble with loose materials to lay on the ground, water is a main cause of stone damage. To solve the problem of water, we all know that we should paint protective agent on the surface of stone, but this method is not completely effective and once and for all. Some tests show that the humidity of stones with problems on the ground is mostly above 5%. If the stones always maintain such a humidity, even if cracks and holes are repaired, new problems will appear in other parts in a short time

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