Joint Defect Rectification Works along Hume Highway
Client: Transport for NSW
The project involved the rectification and resealing of defective transverse joints along the Hume Highway to restore structural integrity, extend pavement service life, and ensure compliance with TfNSW standards. Initial activities included defect identification and classification, with Type 1 defects (≤20 mm) resealed using Tremco Dynomic 100, Type 2 defects (20–50 mm) treated with MP16-18 in accordance with Schedule 161–163, and Type 3 defects (>50 mm) documented for cost estimation and scheduled for rectification in Stage 2. Joint treatments consisted of cleaning and preparing defective joints, applying polyurethane-based sealants, and completing resealing works in carefully staged sequences to minimise traffic disruption.
Safety, Environmental and Quality Management
Safety and compliance were prioritised through detailed traffic control measures, PPE requirements, flashing lights, and strict adherence to TfNSW QA Specifications (MD.M10.MP). Two dedicated work crews operated on a fortnightly schedule, supported by specialist equipment for sawing, sealing, and cleaning, with all personnel trained in defect rectification. Environmental management measures included pre-works impact assessments, waste control procedures for safe disposal and recycling of removed materials, and safeguards to prevent soil and water contamination. The project successfully restored the performance of transverse joints, maintained safe traffic flow, and ensured long-term pavement durability, while meeting all TfNSW safety, environmental, and quality standards.
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