To perform an accurate concrete imaging or concrete inspection survey
a company needs more than just well trained ground penetrating radar (GPR) technicians and advanced ground penetrating radar (GPR) technology; it needs a comprehensive and time proven process. All our concrete imaging and inspection surveys are performed with strict adherence to the following five step process:1. Consult
- Asbuilts or other information regarding building design is obtained from building owner, general contractor or superintendent.
- Project manager and ground penetrating radar (GPR) technician meet with onsite representative to determine scope of project.
2. Design
- Project manager and ground penetrating radar (GPR) technician consult with an onsite representative to determine boundaries of survey area.
3. GPR Survey
- Calibration is performed to make certain hand cart survey wheel is reading an accurate distance.
- Test scans are performed by making lengthy scans in both the north-south and east-west directions.
- Dielectric value is determined by scanning over an object of known depth or by performing a test dielectric.
- The survey area is scanned by making a series of evenly spaced parallel scans (at progressive greater distances from the initial scan) in both the north-south and east-west directions.
4. Designate
- Rebar, post tension cables, mesh, conduits, pipes, deteriorated areas or voids are marked on concrete with colored paint, chalk, tape, permanent marker or wax pencil using our standard color coding system.
5. Report
- Level 1
- Consultation is performed with onsite representative to discuss results of survey.
- Level 2
- Consultation is performed with onsite representative, photos and notes are taken, and a written report is prepared to document results of survey.
To learn more about our concrete imaging and inspection services, please visit the concrete imaging and inspection services page.
To view some of our recently completed projects, please visit the concrete imaging and inspection projects page.