Precision Laser Cleaning (PLC) was engaged by a leading civil contractor to undertake localised lead paint removal on a rural railway bridge in Gippsland, Victoria. The project formed part of a larger refurbishment effort that involved replacing rail sections and transom structures to enhance the bridge’s strength and longevity.
The Challenges
The project presented several challenges for the civil contractor, mainly due to the need for the efficient and controlled removal of lead-based paint from specific sections of the bridge. The work had to be completed without disrupting live rail operations, necessitating a solution that minimised disruption while meeting environmental and safety standards.
Containment and Scaffolding: The client sought to avoid extensive scaffolding or containment measures to minimise risks and avoid interfering with the live railway operations. This ruled out traditional abrasive blasting methodologies.
Dust and Lead Paint Control Requirements: Despite the minimal containment approach, the hazardous lead-based coating required strict controls to meet EPA and WHS regulations.
Remote Access: Being in a rural location with limited infrastructure, the project demanded a lightweight, deployable solution that could operate without large ancillary equipment such as generators or compressors.
Coordination with Train Schedules: The live railway meant the works had to align with the train timetable, requiring a methodology that allowed for rapid mobilisation and demobilisation to accommodate passing trains.
The Solution
PLC devised a customised plan to address the project’s unique requirements and constraints:
Containment and Scaffolding: Unlike traditional abrasive blasting, PLC’s laser cleaning process does not require abrasive media or chemicals, enabling the use of small, localised containment systems. This eliminated the need for large-scale scaffolding or negative-pressure containment structures.
Dust and Lead Paint Control: PLC implemented a proven lead paint removal methodology using inline HEPA extraction systems. This ensured all lead paint fumes and debris were captured at the source, protecting personnel and preventing environmental contamination.
Remote Access: PLC utilised the portable Netalux 300W Needle laser system, which was lightweight and easy to deploy. The system operated efficiently off a 3.5kVA generator, making it ideal for remote worksites with limited services.
Coordination with Train Schedules: The flexibility of PLC’s compact equipment and skilled team allowed for quick mobilisation and demobilisation. This ensured the work could be completed in phases, with minimal disruption to train operations.
The Outcomes
PLC successfully delivered safe and efficient lead paint removal without interfering with the live railway schedule.
Safe and Effective Lead Paint Removal: All areas identified for cutting and welding were safely and thoroughly prepared, with the hazardous lead coating removed in full compliance with EPA and WHS standards.
No Train Schedule Interruptions: Thanks to PLC’s rapid setup and demobilisation capabilities, the project was completed without any impact on regular train operations.
Environmental Compliance: The laser cleaning process avoided the use of chemicals or abrasive media, ensuring no lead-based debris or contamination entered neighbouring waterways or the surrounding environment.
Cost Savings: The elimination of extensive containment structures, large generators, and compressors resulted in significant cost savings. Additionally, the absence of abrasive media disposal as hazardous waste further reduced costs, showcasing the advantages of laser cleaning for rail projects.
Safe, sustainable, cost-effective lead paint removal
This project highlights the advantages of laser cleaning for lead paint removal, particularly in environments with limited access and live operational constraints. PLC’s methodology ensured quick setup and pack-down times, providing unmatched flexibility and efficiency. Laser cleaning proved to be an ideal solution for preparing surfaces for cutting and welding, offering a safe, cost-effective, and environmentally responsible approach for rail sector projects.
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