The anti-slip performance of tile glue is crucial to the quality and safety of tile paving. This performance can be effectively improved through reasonable formula adjustment.
First of all, optimizing the cement base material is the foundation. Choose high-quality cement, whose hydration reaction can provide good initial and later strength, providing a solid foundation for slip resistance. For example, ordinary Portland cement is used, which has faster setting and hardening speed and higher strength development characteristics than other types of cement. At the same time, the amount of cement should be reasonably controlled. Too high a cement content may cause the tile glue to be too hard and brittle. If it is too low, it will not be able to provide sufficient bonding force and anti-slip force. Generally, a cement proportion of 30% - 40% is more suitable. Precise proportioning experiments determine the optimal dosage to balance strength and flexibility and reduce slippage caused by self-weight or external force after the tiles are laid.
Secondly, adding suitable aggregates can significantly improve anti-slip properties. Select aggregates with moderate particle size, irregular shape and certain roughness, such as quartz sand. These aggregates interlock with each other in the tile glue to form a stable skeleton structure, which increases the friction between the tile glue and the ceramic tiles and between the tile glue and the base layer. For example, when the particle size of quartz sand is between 0.1 - 1mm and well graded, it can effectively fill the gaps in the cement slurry, making the overall structure of the tile glue denser. When the tiles are subjected to vertical or horizontal forces, the aggregate The interlocking effect can effectively resist slippage and evenly distribute stress to prevent loosening or slipping of ceramic tiles caused by local stress concentration.
Furthermore, the use of polymer additives is a key link. Redispersible latex powder can be added, which can form a polymer film when exposed to water and wrap it on the surface of cement particles and aggregates. On the one hand, it enhances the cohesion of tile glue, making it less likely to crack and deform when it withstands external forces; on the other hand, It improves the adhesion between ceramic tiles and base layers, especially the adhesion effect on smooth ceramic tile surfaces. In addition, the addition of cellulose ether is also indispensable. It can improve the water retention and construction properties of tile glue, allowing the tile glue to have enough time to remain moist and sticky during the construction process, making it easier to adjust the position of the tiles and reduce the risk of slipping. Generally, the addition amount of cellulose ether is around 0.2% - 0.5%, which can be adjusted appropriately according to the construction environment and ceramic tile type.
Finally, the introduction of special additives can also help improve anti-slip performance. For example, adding a small amount of starch ether can adjust the rheological properties of tile glue, making it have better anti-sag and thixotropy during construction. It can quickly form a certain amount of support in the early stages of tile laying to prevent the tiles from sliding down. At the same time, you can also consider adding some fiber materials, such as polypropylene fibers, which are evenly distributed in the tile glue and serve as reinforcements to further enhance the overall stability and anti-slip ability of the tile glue, even if it is impacted by a large external force. Or in a long-term vibration environment, it can effectively maintain the fixed position of the ceramic tiles, ensuring the durability and reliability of the paving effect.
