2024-03-28T22:20:33Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/76352016-02-16T03:31:22Zcom_10261_96com_10261_4col_10261_475
Microstructural characterization of aged mortar by destructive and non-destructive testing
Segura Pérez, Ignacio
Anaya Velayos, José Javier
Hernández, M. G.
Macphee, Donald E.
Moragues, A.
Sánchez Martín, Teresa
decalcification
mortar
microstructure
Characterization
degradation
ultrasonic velocity
This paper is the authors contribution to the 12th International Congress on the Chemistry of Cement which was held on Montreal, Canada, from July 8th to July 13th, 2007
Degradation of concrete structures located in high humidity atmospheres or under flowing water is a very important problem. In this study, microstructure of several samples of aged mortars has been characterized. For this purpose, destructive and non-destructive testing has been used, and results obtained with both methods correlated.
Mortar ageing has been accelerated by immersing the samples in ammonium nitrate solution. Destructive tests of porosity, thermal analysis, scanning electron microscopy and x-ray diffraction have been done, in order to characterize the microstructure of aged mortar and the degradation of cement matrix. Furthermore, non destructive characterization was done, using ultrasonic velocity measures. With both characterization methods, cement matrix degradation has been characterized and promising results have been obtained with a view to obtain a non-destructive method to characterize mortar degradation.
Ministerio de Educación y Ciencia. PN I+D+i DPI2003-08628-C03-01. Ministerio de Eduación y Ciencia. Programa de ayudas FPI BES-2004-5522.
Peer reviewed
2008-10-13T07:23:30Z
2008-10-13T07:23:30Z
2008-10-13T07:23:30Z
comunicación de congreso
http://purl.org/coar/resource_type/c_5794
12th International Congress on the Chemistry of Cement
978-0-660-19695-4
http://hdl.handle.net/10261/7635
en
open
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