| Records |
| Author |
Külls, C.; Schwarz, O. |
| Title |
Grundwasseranreicherung in den Waldbeständen der Teninger Allmend bei Freiburg im Breisgau |
Type |
Book Chapter |
| Year |
2000 |
Publication  |
Beiträge zur Physischen Geographie |
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Issue |
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Pages |
67 - 78 |
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Fachbereich Geowissenschaften der Johann Wolfgang Goethe-Universität Frankfurt am Main |
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| Publisher |
Werner-F. Bär |
Place of Publication |
Frankfurt am Main |
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Approved |
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| Call Number |
THL @ christoph.kuells @ |
Serial |
72 |
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| Author |
Külls, C. |
| Title |
Rekonstruktion hydrologischer Extreme in der Namibwüste |
Type |
Journal Article |
| Year |
2011 |
Publication |
Berichte der naturforschenden Gesellschaft zu Freiburg im Breisgau |
Abbreviated Journal |
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| Volume |
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Issue |
101 |
Pages |
69-81 |
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no |
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THL @ christoph.kuells @ |
Serial |
71 |
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| Author |
Dávila, P.; Külls, C.; Weiler, M. |
| Title |
A toolkit for groundwater mean residence time interpretation with gaseous tracers |
Type |
Journal Article |
| Year |
2013 |
Publication |
Computers & Geosciences |
Abbreviated Journal |
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| Volume |
61 |
Issue |
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Pages |
116-125 |
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| Publisher |
Pergamon |
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no |
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THL @ christoph.kuells @ Davila2013toolkit |
Serial |
22 |
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| Author |
Emparanza, A.R.; Kampmann, R.; Caso, F.D.; Morales, C.; Nanni, A. |
| Title |
Durability assessment of GFRP rebars in marine environments |
Type |
Journal Article |
| Year |
2022 |
Publication |
Construction and Building Materials |
Abbreviated Journal |
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| Volume |
329 |
Issue |
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Pages |
127028 |
| Keywords |
Composite FRP rebar, Durability, Service life, Marine structures, Reinforced concrete |
| Abstract |
Technologies developed over the last two decades have facilitated the use of glass fiber reinforced polymer (GFRP) bars as internal reinforcement for concrete structures, specially in coastal environments, mainly due to their corrosion resistance. To-date, most durability studies have focused on a single mechanical parameter (tensile strength) and a single aging environment (exposure to high alkalinity). However, knowledge gaps exists in understanding how other mechanical parameters and relevant conditioning environments may affect the durability of GFRP bars. To this end, this study assesses the durability for different physio-mechanical properties of GFRP rebars, post exposure to accelerated conditioning in seawater. Six different GFRP rebar types were submerged in seawater tanks, at various temperatures (23°C, 40°C and 60°C) for different time periods (60, 120, 210 and 365 days). In total six different physio-mechanical properties were assessed, including: tensile strength, E-modulus, transverse and horizontal shear strength, micro-structural composition and lastly, bond strength. It was inferred that rebars with high moisture absorption resulted in poor durability, in that it affected mainly the tensile strength. Based on the Arrhenius model, at 23°C all the rebars that met the acceptance criteria by ASTM D7957 are expected to retain 85% of the tensile strength capacity. |
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Edition |
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| ISSN |
0950-0618 |
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Approved |
no |
| Call Number |
THL @ christoph.kuells @ Ruizemparanza2022127028 |
Serial |
83 |
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| Author |
Jin, Z.; Külls, C. |
| Title |
FDM based OA-ICOS for high accuracy 13C quantification in gaseous CO2 |
Type |
Journal Article |
| Year |
2020 |
Publication |
Earth and Environmental Science |
Abbreviated Journal |
EES |
| Volume |
446 |
Issue |
3 |
Pages |
032061 |
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IOP Conference Series |
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| Notes |
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Approved |
no |
| Call Number |
THL @ christoph.kuells @ Jin2020fdm |
Serial |
16 |
| Permanent link to this record |
