The challenge
Steel support structures and process ducts in a cement plant work under thermal expansion, vibration and corrosive gases. Cracks at welds and wall thinning on ducts develop slowly and are invisible from a walkway.
The plant wanted a reliable picture of these assets before the next shutdown, so that repairs could be planned rather than forced by a failure.
Scope of works
- Visual survey of columns, beams and duct hangers
- Ultrasonic testing (UT), magnetic particle (MT) and dye penetrant (PT) testing on critical welds
- Ultrasonic thickness gauging of hot duct walls for corrosion and erosion
- NDT reports, defect maps and repair recommendations, by inspectors qualified to ISO 9712 / ASNT
Outcome
All structures and ducts were inspected and documented, giving the plant verified integrity records and a repair priority list. See our NDT and inspection services and a similar campaign on preheater ducts in Kosovo.
Photo record
