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Study of damage extent to glass fibre in glass-fibre fabric reinforcement during exposure simulating concrete pore solution

Abstract

The paper evaluates extent of corrosion damage to composite glass-fibre fabric reinforcement in environment simulating concrete pore solutions (pH 12.6, 13.0, 13.5) and carbonated concrete contaminated with chlorides (pH 8.1 + Cl-) using the FT-IR and SEM/EDS techniques. Also, the effect of corrosion damage on tensile strength of segmented glass fibre as well as the presence of specific protective organic coating on glass fibre were studied. The results demonstrate local corrosion damage of samples at pH 13.5 and on the other hand high stability in environment simulating carbonated concrete and carbonated concrete contaminated with chlorides. The study also suggests unevenness of organic coating with occurrence of localized porosity which is related to aforementioned corrosion damage. Corrosion damage in FT-IR spectra manifests by changes in peaks signalling hydrolysis of protective organic coating and occurrence of peaks suggesting presence of Ca2+ rich corrosion products.

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Evaluation of the risk of biocorrosion on a transit gas line passing through Slovakia

-6. 9. Zuo, R., Örnek, D., Syrett, B.C., Green, R.M., Hsu, C-H., Mansfeld, F.B., Wood, T.K. Inhibiting mild steel corrosion from sulfate-reducing bacteria using antimicrobialproducing biofi lms in Three-Mile-Island process water, Applied Microbiology and Biotechnology 2004 , 64, 275-283. 10. Rubio, C, Ott, C., Amiel, C., Dupont-Moral, I., Travert, J., Mariey, L. Sulfato/thiosulfato reducing bacteria characterization by FT-IR spectroscopy: A new approach to biocorrosion control, Journal of Microbiological Methods 2006 , 64 (3), 287

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Inhibition efficiency of sodium salts of carboxylic acids on corrosion of lead in archive environment

://www.english-heritage.org.uk/content/learn/conservation/2543455/2543024/guidelines-for-the-storage-and-display-of-archaeological-metalwork.pdf (accessed 11 Jan 2019) 18. Ďurovič, M.; et al. Restaurování a konzervování archiválií a knih, 1 st ed.; Paseka: Praha, 2002. ISBN 80-7185-383-6. 19. Vávrová, P. Koroze a degradace papíru. Koroze a degradace materiálu. http://www.vscht.cz/met/stranky/vyuka/predmety/koroze_materialu_pro_restauratory/kadm/pdf/1_3.pdf (accessed 11 Jan 2019). 20. Proniewicz, L. M.; Paluszkiewicz, C.; Weselucha-Birczynska, A.; Baranski, A.; Dutka, D. FT-IR and FT-Raman study of

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