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5 reasons why rock slabs fall off

There are many reasons for the hollowing out of rock slabs after the paving is completed, and it is difficult to repair them again. As a result, many owners are helpless and can only wait for them to fall off. In order to help everyone better understand and solve this problem, the following are the five major reasons shared by Dezny that generally cause hollowing and falling off of rock slabs, so that they can be dealt with in time during the construction process and nip them in the bud.

Base layer disconnection: Base layer disconnection is one of the most common causes of hollow drum detachment. Some construction workers may ignore the treatment of the base layer when paving rock slabs. Even if the base layer is not strong, sand falls off, etc., they still directly lay the slabs. Before paving, be sure to carefully observe whether the base layer has been properly treated. If the base layer is found to be loose, it should be cleaned and re-leveled with cement mortar to ensure that the slate is firmly attached.


The waterproof layer is disconnected from the base layer: The reasons for the disconnection of the waterproof layer from the base layer are similar to the disconnection of the base layer. It may be that the surface of the base layer is uneven, unclean, sandy, etc., or the selected adhesive does not meet the standard requirements. Insufficient adhesion. Solutions include carefully checking the cleanliness and flatness of the base surface before waterproofing, and selecting waterproof materials that meet standards and adhesives with sufficient adhesion.

Internal disconnection of the waterproof layer: Internal disconnection of the waterproof layer is usually caused by improper selection of waterproof materials or improper construction. When choosing waterproof materials, you need to pay attention to the rigid and flexible properties of home decoration waterproof materials, which are suitable for wall or floor waterproofing. In addition, attention should be paid to the compressive strength and flexural strength of the waterproof coating. The higher these two indicators, the greater the strength of the waterproof coating. During construction, ensure that the base layer is moist or apply interface agent to prevent the base layer from being too dry and causing internal disconnection of the waterproof layer.


Slab and Tile Adhesive Disconnection: This condition is often described as "no hang". This may occur because the slate glue has not been properly selected, or the backside of the slate has not been cleaned when paving the slate, leaving dust and release agents from the production process. Failure to clean it will affect the bonding force between the slate glue and the slate. Solutions include choosing qualified products that meet standards and ensuring that the back of the slab is thoroughly cleaned during the laying process.

Dezny tells you that in general, the key to preventing the problem of hollowing out and falling off of rock slabs is to choose materials that meet standards and ensure that every step of construction is done properly. Only by using qualified products and strictly following the correct construction process can problems such as hollowing out and falling off be effectively avoided.


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