What are the key processes for anti slip treatment of anti slip terrazzo in bathrooms? Do you need to apply waterproof coating?

Key process and waterproof coating analysis of anti slip terrazzo in bathroom anti slip treatment

1, Key processes for anti slip treatment
Surface polishing and roughness control
The core of terrazzo anti slip lies in increasing surface friction through mechanical polishing or chemical treatment.
Mechanical polishing: Use a coarse sand wheel (such as 60-90 mesh) for initial grinding to remove the smooth surface layer and evenly expose the stone particles; Afterwards, use a fine grinding wheel (such as 180-200 mesh) to finely grind and form a micro textured surface, enhancing the anti slip effect.
Chemical treatment: Use anti slip agents (such as acrylic acid and alkyl polysiloxane coatings) to form a wear-resistant protective film on the surface, increasing the friction coefficient to 0.5 or above while avoiding water damage.
Process key points: Grinding should be uniform to avoid excessive damage to the stone; Chemical coatings should be made of materials compatible with terrazzo to ensure adhesion.
Sealing and pore filling
There are tiny pores on the surface of terrazzo, which can easily accumulate dirt, grime or water.
Sealing treatment: Fill the pores, especially holes and small cracks, with cement slurry with the same composition as terrazzo to prevent moisture from penetrating and causing mold or detachment.
Maintenance requirements: After filling, it is necessary to water and maintain for 2-3 days to ensure that the cement slurry is fully hardened and improve the surface density.
Optimization of drainage system
Anti slip and drainage need to be designed in combination:
Installation of floor drain: Adjust the reserved drainage holes to ensure complete alignment with the floor drain. Control the diameter of the floor drain grate at 6-8mm to prevent blockage by debris.
Slope design: A slope of 1% -2% should be set on the ground to ensure that water flows quickly towards the floor drain and reduce the risk of water accumulation.
2, The necessity of waterproof coating
The waterproof limitations of terrazzo itself
Although terrazzo is made of cement-based materials and has certain waterproof properties, the bathroom environment is special:
Long term water accumulation: showering, washing, and other behaviors can cause the ground to remain moist, and moisture may seep into the base through unfilled pores or cracks.
Grassroots moisture risk: If the waterproof layer is missing, moisture may corrode the floor or wall, causing problems such as mold growth and structural damage.
The core function of waterproof coating
Barrier against moisture infiltration: forms a continuous waterproof film to prevent moisture from diffusing into the lower layer structure.
Protecting the grassroots: avoiding mold and corrosion caused by moisture, extending the service life of terrazzo and the overall building.
Compliance with regulatory requirements: Building waterproofing engineering must comply with the "Construction Specification for Residential Decoration and Renovation Engineering", and waterproof layers must be installed in damp areas such as bathrooms.
Key points of construction
Material selection: Polyurethane waterproof coating or waterproof roll is recommended, with strong water resistance and good adhesion.
Scope of painting: The waterproof height of the wall should not be less than 1.8 meters, and the floor should cover all areas, especially the corners of the wall, the roots of pipes, and other areas that are prone to leakage.
Closed water test: After painting, a 24-hour closed water test is required to confirm that there is no leakage before laying the terrazzo.
3, Comprehensive recommendations
Anti slip and waterproof measures need to be implemented simultaneously
Anti slip treatment solves surface safety issues, while waterproof coating ensures structural durability. Both are indispensable.
Process sequence: First, complete the waterproofing treatment of the base layer, then lay the terrazzo and perform anti slip polishing, and finally perform sealing and curing.
Professional construction and acceptance
Anti slip effect testing: Use a friction coefficient tester to ensure that the ground friction coefficient is ≥ 0.5.
Waterproof acceptance standard: no leakage in the closed water test, and no moisture regain on the wall.
Maintenance and Care
Regular cleaning: Avoid using acidic or strongly alkaline cleaning agents to prevent corrosion of the coating.
Timely repair: If coating wear or pore enlargement is found, it is necessary to re polish and apply waterproofing agent.