Our advantages:
a) Owner of professional factories
b) Experienced and have sophisticated craftsmanship.
c) With strict control of every process and quality-inspected.
d) Have big stock, prompt delivery and good fame in stone industry.
Quality Control:
We have a professional inspection team who will check the goods from block cutting,finishing, packing and loading into the container,
Thickness tolerance: +/- 0.5, +/-1mm.
Each procedure will be double-checked by 2 inspectors.
Clear product pictures will be sent by email to customers before shipment.
Terrazzo Flooring Tiles: Allowable Deviations, Product Protection, and Quality Considerations
4.3 Allowable Deviation Items
Refer to Table 7-6 for allowable deviation details.
Table 7-6: Allowable Deviation of Existing Terrazzo Flooring Tiles
| Item |
Allowable Deviation (mm) |
Inspection Method |
| Surface Flatness |
General: 3mm
Advanced: 2mm
|
Check with a 2m ruler and wedge feeler gauge
|
| Skirting Line (Flat & Straight) |
General: 3mm
Advanced: 3mm
|
Pull a 5m wire, use a wire gauge if less than 5m |
| Straight Seam |
General: 3mm
Advanced: 1mm
|
Pull a 5m thread, use a thread gauge if less than 5m |
5.0 Finished Product Protection
5.1 Protection of Infrastructure
- When spreading cement mortar leveling layers, avoid damaging water and electrical pipelines or other equipment.
5.2 Door Frame Protection
- Ensure careful handling of materials during transportation to prevent damage to door frames.
5.3 Waste Slurry Disposal
- During terrazzo grinding, promptly remove ground cement waste slurry.
- Prevent slurry from entering drains and floor drains to avoid blockage.
5.4 Splash Prevention
- Use a cover plate on the stone grinder to prevent slurry splashing onto walls and facilities.
-
Cover important equipment and areas to avoid damage during grinding.
6.0 Quality Issues to Watch For
6.1 Broken or Unclear Grid Bars
Causes:
-
Grid bars are not firmly inlaid or are not lower than the surface layer.
-
Lack of firm tapping on both sides with an iron trowel before hydraulic pressure.
-
Bending or crushing of grid bars during roller rolling.
Prevention:
-
Lightly pat stones on both sides of the grid before rolling to prevent bending or damage.
6.2 Missing Stone Particles at Corners
Causes:
- Improper bonding of grid bars.
-
Thick cement slurry not applied correctly at the right angle.
Prevention:
- Apply thick cement slurry at a 30° angle when bonding grid bars.
- Keep the top of the grid bars 4-6mm away from the cement slurry.
- Ensure pores are left for proper mixture application without covering the grid bar edges completely.
