Site context and engineering objective
Post-tension systems can be hazardous if cut or drilled without an engineered exclusion and verification process. The scanning objective is to narrow uncertain locations and support a safe work plan.
A high-frequency concrete radar investigation in Riyadh focused on possible post-tension cable and embedded reinforcement positions before intrusive work.
Field approach and interpretation
- Review the structural element type and any post-tension drawings or known tendon layouts before scanning.
- Scan the proposed work area in orthogonal directions with appropriate concrete-scanning equipment and record cover/responses.
- Mark possible embedded targets and communicate high-risk/no-drill zones for structural engineer review.
Important limitations
A radar reflection is not proof that a feature is a post-tension cable, and inability to see a tendon does not mean the location is clear. Structural approval is essential before cutting.
The depth and confidence of GPR interpretation vary with soil electrical properties, moisture, surface structure, reinforcement and target geometry. A non-destructive survey cannot guarantee that every buried service or embedded hazard has been found.
How this information supports site decisions
The practical purpose is to reduce uncertainty by identifying interpreted targets and zones that merit checks against records or controlled exposure. The issued technical report, not this public overview, determines the actual workfront, deliverables and verified findings.
Ground penetrating radar surveys · Planning before excavation
