Thin concrete panels prestressed with carbon textile reinforcement: Flexural testing
Research output: Contribution to conferences › Paper › Contributed › peer-review
Contributors
Abstract
For thin concrete members, such as façade panels, carbon textile reinforcement is a suitable solution. Due to its high durability and non-corrosive properties concrete cover can be significantly reduced, and thus thinner and lighter elements can be designed and produced. In our investigation we considered the possibility of prestressing such thin panels with carbon textile reinforcement in order to reduce cracking and allow for larger dimensions. 12 panels with dimensions of 1.30 × 0.15 × 0.03 meters and three prestress levels (3 panels in each series and control series of non-prestressed specimens) were tested in four point bending test. Specimens were reinforced with symmetric textile grids with axial distance between single strands equal to 38 mm in both directions and tensile strength of 2500 MPa. Cracking moment and cracking pattern were observed, as well as ultimate load-bearing capacity and load-deflection relationship. It was observed that due to prestressing cracking moment could be increased by up to 48%. Furthermore, the ductility was improved as deflections corresponding to cracking load increased more than two times. This research programme shown that not only carbon tendons or strips can be prestressed. Prestressing of carbon textile reinforcement is also possible and it can positively influence the ultimate and serviceability limit states.
Details
Original language | English |
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Pages | 2473-2481 |
Number of pages | 9 |
Publication status | Published - 2019 |
Peer-reviewed | Yes |
Externally published | Yes |
Conference
Title | 5th International fib Congress |
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Subtitle | Better - Smarter - Stronger |
Abbreviated title | fib 2018 |
Duration | 7 - 11 October 2018 |
City | Melbourne |
Country | Australia |
External IDs
ORCID | /0000-0001-8735-1345/work/142244557 |
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Keywords
ASJC Scopus subject areas
Keywords
- Carbon textile reinforcement, Prestressing, Self-stressing