RT Journal Article
T1 Assessing rebar corrosion through the combination of nondestructive GPR and IRT methodologies
A1 Solla Carracelas, Maria Mercedes
A1 Lagüela López, Susana
A1 Fernández, Norberto
A1 Garrido González, Iván
K1 3303.07 Tecnología de la Corrosión
K1 3305.06 Ingeniería Civil
AB Corrosion is one of the pathologies that most affects the resistance of reinforced concrete. There are numerous ancient structures still in use affected by corrosion that need proper evaluation and remedial treatment for their maintenance. In this sense, there has been an increasing tendency to use nondestructive testing techniques that do not alter the reinforcement elements of such vulnerable structures. This work presents a combined methodology by using ground penetrating radar (GPR) and infrared thermography (IRT) techniques for the detection and evaluation of corrosion. The methodology was applied to the case study of an old construction that belongs to the abandoned military battery of Cabo Udra (Galicia, Spain). The combination of these complementary techniques allowed for the identification of areas with different dielectric and thermal conductivity, as well as different reflection patterns and intensity of the GPR waves. Thus, from the analysis of the GPR signals and IRT images acquired, it was possible to interpret corroded areas and moisture, along with inner damages such as cracking and debonding. These pathologies have a direct effect on the durability and sustentation of a structure, while the knowledge of their existence might be useful for engineers engaged in the design of maintenance works.
PB Remote Sensing
SN 20724292
YR 2019
FD 2019-07-18
LK http://hdl.handle.net/11093/1462
UL http://hdl.handle.net/11093/1462
LA eng
NO Remote Sensing, 11(14): 1705 (2019)
NO Agencia Estatal de Investigación | Ref. RTI2018-095893-B-C21
DS Investigo
RD 16-sep-2024