Control del proceso de deshumidificación de muros con georradar. Un edificio patrimonial como caso de estudio.
Abstract
In historical buildings the harmful effects in masonry due to moisture are well known, as it affects ornamentation and the components of the masonry which is also the building’s structure. That is the case of the church Nuestra Señora de la Viña (Salta, Argenti na), a XIX cent. building which presented typical pathological symptoms caused by rising damp. An electro physical system was installed in order to dehumidificate the masonry and external surfaces were subsequently recovered. This high investment requires a periodical control of the system’s efficiency. This article presents the foundations of and the results obtained by using an impulse radar as a non-destructive resource to control the dehumidification system. Its main advantage is the early detecting of a failure in the system and so avoiding new pathological symptoms caused by rising damp.
Keywords: Pathology masonry; moisture; radar.
Downloads
References
Aldana G., Ceballos M.A. y Gea S. (2011), “Experiencias con GPR en los procesos de evaluación de estructuras”, actas del 7º Congreso Internacional sobre Patología y Rehabilitación de Estructuras, Fortaleza (Brasil), 2011.
Binda, L., Lualdi, M. y Saisi, A., (2007) “Non-destructive testing techniques applied for diagnostic investigation: Syracuse Cathedral in Sicily, Italy”, International Journal of Architectural Heritage, 1: 380–402. DOI: https://doi.org/10.1080/15583050701386029
Binda, L. y Saisi, A., (2009) “Application of NDTs to the diagnosis of Historic Structures”. NDTCE’09, Non-Destructive Testing in Civil Engineering. Nantes, France, June 30th – July 3rd, 2009.
Gea, S., Toledo, M., Milia, S., Carrió, A. (2010), “Evaluación de la vulnerabilidad sísmica de la iglesia Nuestra Señora de la Candelaria de la Viña”. Actas de las XXXIV Jornadas Sudamericanas de Ingeniería Estructural. San Juan, Argentina, 27 al 30 de septiembre y 1 de octubre de 2010.
GSSI, Geophysical Survey Systems, Inc., 2006
Malicki, M.A., Plagge, R. y Roth, C.H. (1996). “Improving the calibration of dielectric TDR soil moisture determination taking into account the solid soil”. European Journal of Soil Science, September 1996, 47,357-366 DOI: https://doi.org/10.1111/j.1365-2389.1996.tb01409.x
Mollo, L. y Greco, R. (2011). “Moisture Measurements in Masonry Materials by Time Domain Reflectometry”. J. Mater. Civ. Eng. 2011.23:441-444. DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0000188
Pavlík, Z., Jiricková, M., Cerný, R., Sobczuk, H., and Suchorab, Z. (2006), “Determination of moisture diffusivity using the time domain reflectometry (TDR) method”. Journal of Building Physics 2006 30: 59. DOI: https://doi.org/10.1177/1744259106064356
Santos Assunção, S., Perez-Gracia, V. (2011) “Mejoras en la visualización de señales de radar de subsuelo mediante el análisis frecuencial”. 12º Congreso Nacional de Ensayos no Destructivos. Valencia, España.
Topp, G.C. (1980) “Electromagnetic determination of soil water content: measurements in coaxial transmission lines”. Water Resources Research, Vol. 16, No. 3, pp 574-582, June 1980 DOI: https://doi.org/10.1029/WR016i003p00574
_______________________________
License in effect from September 2020
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.