Field notes
What we are learning about corrosion and inspection.
Short, plain-English notes from the field and the lab.
Corrosion
Why rust inside concrete stays hidden until it is expensive
Concrete protects the steel inside it, until it stops. Here is how rust starts, why you cannot see it, and why early inspection costs far less than repair.
Read the noteInfraTWINWhat a condition score means
Every member of a structure gets a number and a word. Here is what they tell an engineer, and how a ranked list turns into a repair plan.
Read the noteInspectionHow a drone and LiDAR can replace scaffolding
Close access used to mean scaffolds, ropes or special trucks. Drones, LiDAR and thermal cameras can reach the same places, and often with less disruption.
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