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@PHDTHESIS{Lampe:1022421,
author = {Lampe, Annette Katharina},
othercontributors = {Raupach, Michael and Orlowsky, Jeanette},
title = {{T}hermal behavior of carbon textile reinforced concrete
under ambient and electrical heating},
school = {Rheinisch-Westfälische Technische Hochschule Aachen},
type = {Dissertation},
address = {Aachen},
publisher = {RWTH Aachen University},
reportid = {RWTH-2025-10011},
pages = {1 Online-Ressource : Illustrationen},
year = {2025},
note = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
University; Dissertation, Rheinisch-Westfälische Technische
Hochschule Aachen, 2025},
abstract = {With the aim of characterizing the thermal behavior of
carbon textile reinforced concrete under ambient and
electrically induced heating, this thesis investigates the
interaction between material components and the mechanical
performance under serviceability and extreme temperature
conditions. Understanding the thermal behavior of carbon
textile reinforced concrete is essential to ensure reliable
mechanical performance, as temperature exposure can
significantly influence strength, stiffness, and durability,
and must therefore be considered during structural design.
In addition to the characterization under ambient
conditions, this thesis also characterizes the application
of electrically heated carbon textile reinforced concrete to
enable functional building components. The combined analysis
highlights the potential of carbon textile reinforced
concrete for integrated thermal performance in construction.
The thermal response of carbon textile reinforced concrete
was examined across a wide ambient temperature range,
including freeze-thaw exposure, service temperatures up to
80 °C, and elevated thermal conditions up to 1000 °C. To
support mechanical characterization, tensile strength tests
were conducted on the carbon textile reinforcement, the
cementitious matrix and the composite. Using a comparative
approach based on KT-values, which relate tensile strength
at elevated temperatures to that at room temperature, it was
shown that thermal loading leads to a gradual decrease in
tensile strength. This is primarily caused by softening and
degradation of the impregnation material, and at higher
temperatures, by carbon fiber decomposition. Digital image
correlation measurement was implemented to analyze
deformation and cracking behavior under thermal load. A
methodological contribution of this thesis is the
development of an automated evaluation tool for digital
image correlation measurements, enabling standardized,
reproducible, and efficient analysis across test series. In
addition to characterizing mechanical performance under
ambient temperature, the electrical thermal behavior was
investigated to understand the underlying heating
principles. Within the carbon textile reinforced concrete
composite, multiple technical heating principles, such as
electrical resistance, contact, convection and radiant
heating were identified. Experimental investigations
revealed that key factors influencing the mechanical and
electrical behavior include the geometry of the carbon
textile reinforcement, the fiber content, and particularly
the type of impregnation. The integration of carbon textile
reinforced concrete as a functional heating element was
further supported by numerical modeling of heat development
under electrical loading, providing design- oriented
insights for practical application. The findings provide a
basis for the development of advanced multifunctional
systems, including automated de-icing elements and thermally
controlled concrete surfaces.},
cin = {311310},
ddc = {624},
cid = {$I:(DE-82)311310_20180808$},
typ = {PUB:(DE-HGF)11},
doi = {10.18154/RWTH-2025-10011},
url = {https://publications.rwth-aachen.de/record/1022421},
}
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