Photogrammetry App for Roughness Profile
Can an app be developed that uses a smartphone or tablet's camera to generate a photogrammetry based model of a concrete surface that relates the surface profile of the model to the corresponding standard roughness for determining if the concrete surface roughness is optimal for concrete repairs?
Need and Benefit
The determination of surface roughness for concrete repair is a subjective, low repeatability process. It involves using nine standard rubber samples that are used to compare the concrete surface to. When the concrete is prepared properly it should match a particular roughness on the samples. If the comparison is performed incorrectly, the repair is compromised and will not last as long as expected.
By using a quantitative method that involves generating a 3D model section and performing calculations to determine the closest match to the standard samples, the concrete repair can be performed with a higher degree of accuracy in its integrity. If the concrete is properly prepared, the chances of the repair performing as expected are increased.
Contact the Principal Investigator for information about partners.
Bureau of Reclamation Review
The following documents were reviewed by experts in fields relating to this project's study and findings. The results were determined to be achieved using valid means.
Photogrammetry App for Roughness Profile (final, PDF, 202KB)
By Matthew Klein
Publication completed on September 30, 2015