This contribution will introduce carbon-reinforced concrete components (so-called carbon concrete composites, or C³) with sensor functionalities for innovative building envelopes. For a continuous in situ structural monitoring, these textile-reinforced concrete components are equipped with textile sensor networks consisting of resistive carbon fiber sensors (CFSs), which are integrated into the carbon fiber non-crimp fabrics of the concrete reinforcement by multiaxial warp-knitting. The in situ CFSs, consisting of 1 k or 50 k carbon fiber roving with added staple fiber/multifilament dielectric cladding, are later integral to the load-distributing elements of the concrete component, and elongations within these are easy to record with good correlation to ohmic resistance changes. Gage factors of k = 0.52–1.23 at linearity deviations of ALin=4.0–8.7% are feasible. This allows a monitoring of C³ building envelopes for structural mechanical changes caused by physical changes within the component through mechanical or thermal loads or deformation and cracks.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:35422 |
| Date | 05 November 2019 |
| Creators | Haentzsche, Eric, Frauendorf, Moritz, Cherif, Chokri, Nocke, Andreas, Reichardt, Michaela, Butler, Marko, Mechtcherine, Viktor |
| Publisher | Sage |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 1746-7748, 10.1177/0040517517729385, info:eu-repo/grantAgreement/Federal Ministry of Economics and Energy/Industrielle Gemeinschaftsforschung/18901BR/1/ |
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