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The article presents an application of X-ray microtomography for identification of the carbonation zone in concrete material. A concrete specimen subjected earlier to harsh environmental conditions is investigated. The material is firstly checked with the use of chemical corrosion indicators and then is subjected to microstructural analysis performed with the use of X-ray microtomography. Two different settings of scanning parameters are applied implying the image resolutions of approximately 14 μm per 1 pixel and about 7 μm per 1 pixel, respectively. The results obtained are then compared and analyzed. The depth of the carbonation zone is evaluated based on the attenuation curve. The paper highlights also the significance of the corrosion phenomenon in concrete structures. Details of the deterioration mechanisms in concrete are shortly presented.
Wydawca
Czasopismo
Rocznik
Tom
Strony
47--54
Opis fizyczny
Bibliogr. 14 poz., tab., rys.
Twórcy
autor
- Wrocław University of Technology, Faculty of Civil Engineering, Institute of Geotechnics and Hydrotechnics, Wrocław, Poland
autor
- Wrocław University of Technology, Faculty of Civil Engineering, Institute of Geotechnics and Hydrotechnics, Wrocław, Poland
autor
- Wrocław University of Technology, Faculty of Civil Engineering, Institute of Geotechnics and Hydrotechnics, Wrocław, Poland
autor
- Wrocław University of Technology, Faculty of Civil Engineering, Institute of Building Engineering, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Bibliografia
- [1] VILLAIN G., THEIRY M., PLATRET G., Measurement methods of carbonation profiles in concrete: thermogravimetry, chemical analysis and gammadensimetry, Cement and Concrete Research, 2007, Vol. 37, 1182–1192.
- [2] LO Y., LEE H.M., Curing effects on carbonation of concrete using a phenolphthalein indicator and Fourier-transform infrared spectroscopy, Building and Environment, 2002, Vol. 37, 507–514.
- [3] CHANG C.-F., CHEN J.-W., The experimental investigation of concrete carbonation depth, Cement and Concrete Research, 2006, Vol. 36, 1760–1767.
- [4] CNUDDE V., BOONE M.N., High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications, Earth-Science Review, 2013, Vol. 123, 1–17.
- [5] RADON J., Über die Bestimmung von Funktionen durch ihre Integralwerte längs bestimmter Mannigfaltigkeiten, Ber. Verb. Sächs. Akad. Wiss. Leipzig Math.-Nat. Kl., 1917, Vol. 69, 262–277.
- [6] CORMACK A.M., Representation of a function by its line integrals with some radiological applications, J. Appl. Phys., 1963, Vol. 34, 2722–2727,
- [7] CORMACK A.M., Representation of a function by its line integrals with some radiological applications II, J. Appl. Phys., 1964, Vol. 35, 2908–2913.
- [8] HOUNSFIELD G.M., Computerized traverse axial scanning (tomography): Part I. Description of system, British Journal of Radiology, 1973, Vol. 46, 1016–1022.
- [9] MONTEIRO P.J.M., KIRCHHEIM A.P., CHAE S., FISCHER P., MACDOWELL A.A., SCHAIBLE E., WENK H.R., Characterizing the nano and micro structure of concrete to improve its durability, Cement and Concrete Research, 2009, Vol. 31, 577–584.
- [10] EPSTEIN C.L., Introduction to Mathematics of Medical Imaging: Chapter 3. A basic model for tomography, SIAM, USA, 2003.
- [11] KIERNOŻYCKI W., Betonowe konstrukcje masywne, SPC, Kraków, 2003.
- [12] NEVILLE A., Properties of concrete, Pearson Education Ltd., England, 1996.
- [13] FELDKAMP L.A., DAVIS L.C., KRESS J.W., Practical conebeam algorithm, Journal of Optical Society of America, 1984, Vol. 1, No. 6, 612–619.
- [14] HAN J., SUN W., PAN G., X-ray microtomography of the carbonation front shape evolution of the cement mortar and modeling of accelerated carbonation reaction, Journal of Wuhan University of Technology-Mater. Sci. Ed., 2013, Vol. 28, No. 2, 303–308.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-024e240f-629c-4874-9713-ad490fa859b5