Case 1
Navigation
- Introduction
- Causes of Defects
- Good Practices
- Standards
- Maintenance and Diagnostics
- Remedial
- Similar Cases
- References
Cause of Defects
Chip off from stone panels may be due to:
- Mishandling of the stone panel during installation,
- Lack of supervision during selection of panels. Stone panels should be stored in a vertical manners, and not lying horizontally on its sides as shown on the left as it will not assert unnecessary compression on the stones at the bottom, but may also cause many corners to be accidentally chipped off when lifted off and placed vertically on its side on the ground during installation. This lack of quality control by the site supervisor causes aesthetic damages to the finished façade which would normally be remedied by unsightly means.
The stones may have already been damaged during the cutting or slicing, and the calibration stage.
Raw boulder being cut with water being used as the main cooling agent. The vibration of the blades would sometimes cause the edges of the panels to weaken and break off.
During the Calibration process, ensure that all the panels achieved identical thickness throughout the whole length of the slab, the edges of the panels are sometimes weakened due to vibration of the grinding plate in the calibration machine.
Another possibility is the usage of the area near the chipped stone. Heavy traffic activities such as loading and unloading may chip off the corner of the stone.