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https://hdl.handle.net/123456789/379| Τύπος: | Άρθρο σε επιστημονικό περιοδικό |
| Τίτλος: | The effect of elevated temperatures on the TRM-to-masonry bond: comparison of normal weight and lightweight matrices |
| Συγγραφέας: | [EL] Ασκούνη, Παρασκευή[EN] Askouni, Paraskevi [EL] Παπανικολάου, Αικατερίνη[EN] Papanicolaou Catherine [EL] Καφφετζάκης, Μιχαήλ[EN] Kaffetzakis, Michael |
| Ημερομηνία: | 27/05/2019 |
| Περίληψη: | Textile Reinforced Mortar (TRM) is a composite material that has already been successfully used as an externally bonded strengthening means of existing structures. The bond of TRM with various substrates is of crucial importance for determining the degree of exploitation of the textile. However, little is known on the effect of elevated/high temperatures on the TRM-to-substrate bond characteristics while relevant testing protocols are also lacking. This study focuses on the experimental assessment of the TRM-to-masonry bond after exposure of masonry wallettes unilaterally furnished with TRM strips at 120 °C and 200 °C for 1 h. The shear bond tests on cooled-down specimens were carried out using the single-lap/single-prism set-up. Two TRM systems were investigated sharing the same type of textile, which is a dry AR glass fiber one (either in a single-layer or in a double-layer configuration) and different matrices: one normal weight (TRNM) and another lightweight (TRLM) of equal compressive strengths. At control conditions (non-heated specimens) and after exposure at a nominal air temperature of 120 °C, both single-layer TRM systems exhibited similar bond capacities. After exposure at a nominal air temperature of 200 °C single-layer and double-layer TRNM overlays outperformed their TRLM counterparts. A critical discussion is based on phenomenological evidence and measured response values. |
| Γλώσσα: | Αγγλικά |
| Σελίδες: | 14 |
| DOI: | 10.3390/app9102156 |
| EISSN: | 2076-3417 |
| Θεματική κατηγορία: | [EL] Επιστήμη Πολιτικού Μηχανικού[EN] Civil Engineering |
| Λέξεις-κλειδιά: | textile reinforced mortar; bond; masonry; normal weight/lightweight aggregates; elevated temperatures |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2019 by the authors. Licensee MDPI |
| Όροι και προϋποθέσεις δικαιωμάτων: | This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| Διατίθεται ανοιχτά στην τοποθεσία: | https://www.mdpi.com/2076-3417/9/10/2156 |
| Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη: | https://www.mdpi.com/2076-3417/9/10/2156 |
| Ηλεκτρονική διεύθυνση περιοδικού: | https://www.mdpi.com/journal/applsci |
| Τίτλος πηγής δημοσίευσης: | Applied Sciences |
| Τεύχος: | 10 |
| Τόμος: | 9 |
| Σελίδες τεκμηρίου (στην πηγή): | Article no 2156 |
| Σημειώσεις: | (This article belongs to the Special Issue Textile Reinforced Cement Composites: New Insights in Structural and Material Engineering) The research described in this paper has been co-financed by the European Union (European Social Fund—ESF) and Greek national funds through the Operational Program “Human resource development, education, and lifelong learning” of NSRF 2014-2020, Project “Supporting researchers with emphasis on young researchers—EDVM34”. |
| Εμφανίζεται στις συλλογές: | Ερευνητικές ομάδες |
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