Simulation of Tetrahedral Profiled Carbon Rovings for Concrete Reinforcements

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Textile reinforcements are increasingly establishing their position in the construction industry due to their high tensile properties and corrosion resistance for concrete applications. In contrast to ribbed monolithic steel bars with a defined form-fit effect, the conventional carbon rovings’ bond force is transmitted primarily by an adhesive bond (material fit) between the textile surface and the surrounding concrete matrix. As a result, relatively large bonding lengths are required to transmit bond forces, resulting in inefficient material utilization. Novel solutions such as tetrahedral profiled rovings promise significant improvements in the bonding behavior of textile reinforcements by creating an additional mechanical interlock with the concrete matrix while maintaining the high tensile properties of carbon fibers. Therefore, simulative investigations of tensile and bond behavior have been conducted to increase the transmittable bond force and bond stiffness of profiled rovings through a defined roving geometry. Geometric and material models were thus hereby developed, and tensile and pullout tests were simulated. The results of the simulations and characterizations could enable the optimization of the geometric parameters of tetrahedral profiled rovings to achieve better bond and tensile properties and provide basic principles for the simulative modeling of profiled textile reinforcements.

Details

Original languageEnglish
Article number2767
JournalMaterials
Volume16
Issue number7
Publication statusPublished - Apr 2023
Peer-reviewedYes

External IDs

Scopus 85152713623
ORCID /0000-0002-5407-3948/work/156812076
ORCID /0000-0003-0421-4199/work/157318966
ORCID /0000-0001-9640-4373/work/157319330

Keywords

Keywords

  • 3D scan, bond behavior, bond simulation, carbon-reinforced concrete, profiled rovings, pullout test