In the process of laying ceramic tiles, we all use a material, which is tile adhesive. Recently, many people have reported that tiles will fall off after using tile adhesive ! What exactly is going on? Is it caused by poor quality of tile adhesive or other aspects? Let’s take a look at it together!
Before talking about what causes it, it is still necessary for us to understand what tile adhesive is, and then talk about the reasons that cause tiles to fall off.
1. What is tile adhesive
Tile adhesive is also called tile adhesive. This material is made of cement, quartz sand, polymer cement and a variety of additives that are mechanically mixed evenly. Tile adhesive is mainly used as an adhesive for bonding ceramic tiles and tiles, and is also known as polymer tile bonding mortar.
2. Characteristics of tile adhesives
1. High bonding strength and fast hardening speed can greatly improve the service life and decorative effect of various paving materials.
2. Easy to construct, just process appropriate amount of water and stir before use. The pasted tiles do not require blisters and can be pasted directly.
3. Excellent compression resistance, tensile strength, water resistance, alkali resistance and weather resistance, and is not affected by the environment.
4. Good construction performance, good water retention, workability, and resistance to falling. During the bonding process, the tiles can be adjusted for 10 minutes and can be operated for 60 minutes.
5. Ultra-thin layer construction can be achieved. The coating thickness is less than half of the traditional process, which saves costs and reduces the shrinkage rate. It will not cause cracking and falling off of the decorative adhesive surface due to stress.
6. Non-toxic, odorless and pollution-free, it is a truly green and environmentally friendly product.
3. The reasons why tiles will fall off after using tile adhesive are as follows
1. Tiles and tile adhesive fall off
Reason:
The back of the tiles has not been cleaned. When the ceramic tiles are produced, there will be a large number of release machines on the back to facilitate the separation of the ceramic tiles from the production mold. If the release agent is not cleaned cleanly, it will prevent the adhesion between the ceramic tile adhesive and the ceramic tiles.
Solution:
Clean the back of the tiles before laying them.
2. Internal disconnection of the base layer
Reason:
When laying ceramic tiles, if the base layer is not inspected and treated, the base layer will not be strong and sand will fall off. After the tiles were laid in the later stage, the interior of the base layer was disconnected, causing the tiles to fall off.
Solution:
First, the loose base layer must be removed and then paved with cement mortar before the next step of construction can be carried out.
3. The waterproof layer is pulled off, part of it remains on the base layer, and part of it follows the tile adhesive
When the waterproof layer is internally disconnected, most people first think that it is a material problem, but there are several reasons for the internal detachment of the waterproof layer.
Reason:
①. The waterproof material itself has quality problems, which is caused by unqualified strength after the waterproof coating is formed into a film;
②. Improper selection of waterproof materials. Home decoration waterproof materials are generally divided into rigid and flexible. Different materials have different characteristics. Rigid materials have stronger bonding properties, while flexible materials have better flexibility. Use different materials for painting. The effects produced by the same part will be different;
③ If the base layer is too dry, it will also cause the inside of the waterproof layer to be broken. During the construction of the waterproof coating, if the base surface is not moistened or the interface agent is applied, some of the cement-based waterproof materials will appear. Moisture is absorbed by the dry base surface. After this part of the moisture is absorbed, the cement in the coating will be greatly affected after hydration, and the strength will be affected, so that the originally designed strength of the coating cannot meet the requirements, and the inside of the waterproof layer will fall off.
Solution:
The strength of waterproof coatings has two performance indicators in national standards or industry standards.One is the compressive strength; the other is the bonding strength. The higher the compressive strength and bonding strength, the higher the strength of the waterproof coating itself.
In the selection of waterproof materials, rigid waterproof materials are more suitable for tiling.
Excessive dryness of the surface of the base layer is caused by construction. Therefore, during construction, the surface of the base layer should be moistened to allow the base layer to fully absorb water. Then the excess open water should be absorbed with a sponge and then waterproofed.
4. The waterproof layer is separated from the base layer
Reason:
The selected waterproof material does not meet the standard requirements and the bonding force is not strong enough;
The base layer does not meet the requirements (such as the surface of the base layer is uneven, unclean, cracked, sandy, etc.)
Solution:
In terms of material selection, all standards of Baohe waterproof coating comply with national requirements.
During construction, the base layer should be inspected before waterproofing to check whether the surface of the base layer is clean and smooth, whether there are cracks, floating dust and sand, etc. If this happens, clean the surface of the base layer with a shovel. If there are cracks, you can use a sealing plugging agent to repair them. Then use an interface agent to sand the floating ash on the surface of the base layer to fix it and increase the adhesion to the base layer. force.
So, you see there are many reasons why tiles will fall off after using tile adhesive. We can’t just look at it unilaterally, but must combine it from many aspects. The above is The editor has shared with you a lot of content, so take a closer look. That’s it for today’s sharing. I hope it will be helpful to you! Get away!
