15.3.4. Ground Penetrating Radar (GPR)

Try these first

1. 1.

   What does GPR stand for?

   Hint

   Think about the type of waves it uses.

2. 2.

   Name one feature GPR can detect.

   Hint

   Consider what engineers need to find below the surface.

3. 3.

   What is the purpose of GPR?

   • To drill into the ground
   • To detect subsurface features
   • To measure surface temperature

   Hint

   Think about what it does below surfaces.

4. 4.

   Is GPR a destructive testing method?

   • True
   • False

   Hint

   Remember the type of testing it is.

5. 5.

   Consider using GPR to assess an old bridge. Outline the steps you would take to conduct the inspection, explaining the rationale behind each step.

   Hint

   Think about what preparations are needed before GPR can be effective.

6. 6.

   Compare the effectiveness of GPR in detecting voids in different materials such as concrete and asphalt. Discuss its advantages and limitations.

   Hint

   Consider the properties of different materials when assessing GPR effectiveness.