| DATE: DECEMBER 2022 |
|
|
|
| PREPARED BY: BALWINDER SINGH, ASST. BUSINESS MANAGER KATALINE INFRAPRODUCTS PVT. LTD. |
|
|
|
| LOCATION: MULTIPLE LOCATIONS - NORTH INDIA |
|
|
|
| OBSERVATION: |
|
|
|
|
|
|
|
| Image |
Problem and Observation |
Causes |
Preventive Measures |
|
Bubbles |
|
|
 |
Bubbles formed under the surface of Thermoplastic road marking lines |
Evaporation and expansion of the moisture trapped in surface of concrete |
Allow time for road surface to dry completely. |
|
|
|
Allow for proper curing of concrete surface |
|
|
|
Do not apply thermoplastic immediately after rain or under Dew conditions. |
|
|
|
Ensure marking is done after a minimum 75 days of finish coat of Bitumen / Concrete surface |
|
|
|
Let primer dry completely before application. |
|
|
|
Ensure surface temperature is above 9 deg C. |
|
|
|
|
|
Colour Changes |
|
|
 |
White Colour Changes to Yellow or Dirty White |
Overheating during preheating of thermoplastic. |
Refer to the Manufacturer reccomendations regarding the temperature. |
|
|
Mixing of the old and new material. |
Gradually increase and constantly monitor the temperature to check viscosity and colour |
|
|
|
Clean the boiler after every batch |
|
|
|
|
|
Peel Off |
|
|
 |
Thermoplastic road marking line peel off |
Improper adhesion to road surface |
Always ensure proper curing of concrete or asphalt surface has been done prior to marking |
|
|
Moisture, grease and oil remain on the road surface. |
Remove the existing road marking prior to application of new road marking |
|
|
Low road surface and ambient temperature. |
Apply primer to ensure better adhesion in case of application of old road surface. |
|
|
|
Road surface to be propoerly cleaned. |
|
|
|
|
|
Grooves and scratch marks |
|
|
 |
Marks and striations seen on the surface of marking |
Discharge point of screed shoe choked with stones, dust or other foreign particles |
Clean the shoe filterAdjust the angle of the applicator shoe. |
|
|
|
|
|
|
|
|
|
Tyre Marks |
|
|
 |
Marks of vehicle tyres |
Less curing time given to thermoplastic |
Allow proper curing of minimum 75 days of the asphalt surface |
|
|
Traffic released early |
Allow thermoplastic curing of minimum 2 hrs, prior to allowing vehicles |
|
|
In sufficeint curing or bleeding of asphalt, which transfers from tyre to the road marking |
Wash the surface with water to remove temporary blackening |
