TY - GEN
T1 - Application of Impact-Echo techniques for crack detection and crack parameter estimation in concrete
AU - Grosse, C. U.
AU - Reinhardt, H. W.
AU - Krüger, M.
AU - Beutel, R.
PY - 2005
Y1 - 2005
N2 - Existing instruments designed for measurements involving the Impact-Echo (IE) technique are usually of limited use in field tests when investigating large concrete structures like buildings or tunnels. In 2001 demand for such instruments increased significantly particularly in Germany, as German authorities made quality control tests of state road tunnel constructions mandatory. For this task, it is essential that the equipment used for Impact-Echo measurements along profiles uses the scanning technique and is easy to work. A new concept for impact-echo testing systems is presented. The new device is small and easy to handle, robust and unproblematic regarding transportation. The system utilizes advanced impact generation, measurement, data acquisition, filtering, and visualization techniques. Regarding the software state-of-the-art requirements were implemented for both, scientific applications and field-tests. A new option is the flaw detection and estimation of crack parameters like crack width and depth out of the impact-echo signals. Some first results of in-situ measurements are shown.
AB - Existing instruments designed for measurements involving the Impact-Echo (IE) technique are usually of limited use in field tests when investigating large concrete structures like buildings or tunnels. In 2001 demand for such instruments increased significantly particularly in Germany, as German authorities made quality control tests of state road tunnel constructions mandatory. For this task, it is essential that the equipment used for Impact-Echo measurements along profiles uses the scanning technique and is easy to work. A new concept for impact-echo testing systems is presented. The new device is small and easy to handle, robust and unproblematic regarding transportation. The system utilizes advanced impact generation, measurement, data acquisition, filtering, and visualization techniques. Regarding the software state-of-the-art requirements were implemented for both, scientific applications and field-tests. A new option is the flaw detection and estimation of crack parameters like crack width and depth out of the impact-echo signals. Some first results of in-situ measurements are shown.
UR - http://www.scopus.com/inward/record.url?scp=84869758753&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84869758753
SN - 9781617820632
T3 - 11th International Conference on Fracture 2005, ICF11
SP - 4884
EP - 4889
BT - 11th International Conference on Fracture 2005, ICF11
T2 - 11th International Conference on Fracture 2005, ICF11
Y2 - 20 March 2005 through 25 March 2005
ER -