The five-layer cement mortar waterproofing system is a reliable method used to prevent water penetration in construction. Each layer has a specific function, and together they create a strong, cohesive waterproof barrier that adheres well to the base surface.
The first layer, known as the ash layer, serves as a bonding agent between the base and the subsequent layers. It is applied multiple times to fill the pores on the base surface, improving adhesion and sealing the surface to enhance its resistance to water seepage. This ensures the second layer of cement mortar sticks firmly to the base.
The second layer is a cement mortar layer applied before the first layer fully hardens. This allows for a strong bond between the two layers, forming a structural skeleton that supports the entire waterproof system. It also helps protect the ash layer and promotes full hydration of the cement, which increases its strength and impermeability.
The third layer, another ash layer, is mainly responsible for waterproofing. It is applied to a rough and moist cement mortar surface, allowing for better hydration and crystal formation. This results in a denser structure with fewer cracks, effectively cutting off the capillary network that could allow water to pass through. This significantly improves the waterproof performance.
The fourth layer is a cement mortar layer that acts as both a waterproofing and protective layer. It is applied before the third layer sets, ensuring it bonds tightly with the previous layers and forms a solid, compact structure. This enhances the overall density and durability of the waterproof system.
The fifth and final layer is a cement slurry coating applied over the fourth layer to smooth the surface, seal any remaining pores, and further improve the waterproofing properties. Together, the five layers work in a coordinated way to resist water infiltration, making this method a rigid waterproof solution. However, due to its rigidity, it may not be suitable for all types of structures or areas prone to movement.
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