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

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 corrosio...

Full description

Saved in:
Bibliographic Details
Published in:Korose a ochrana materiálu 2017-10, Vol.61 (4), p.131-142
Main Authors: Pokorný, P., Bouška, P., Bittner, T., Kolísko, J., Vokáč, M., Mandlík, T., Müllerová, J.
Format: Article
Language:English
Subjects:
Carbonation
Chlorides
Concrete
Corrosion
Corrosion effects
Corrosion products
Damage assessment
Damage localization
Glass fiber reinforced plastics
Glass fibers
Infrared spectroscopy
Organic coatings
Porosity
Protective coatings
Repair & maintenance
Signaling
Simulation
Unevenness
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 Ca rich corrosion products.
ISSN:1804-1213
0452-599X
1804-1213
DOI:10.1515/kom-2017-0016