Bond Modification of Carbon Rovings through Profiling

Research output: Contribution to journalResearch articleContributedpeer-review



The load-bearing behavior and the performance of composites depends largely on the bond between the individual components. In reinforced concrete construction, the bond mechanisms are very well researched. In the case of carbon and textile reinforced concrete, however, there is still a need for research, especially since there is a greater number of influencing parameters. Depending on the type of fiber, yarn processing, impregnation, geometry, or concrete, the proportion of adhesive, frictional, and shear bond in the total bond resistance varies. In defined profiling of yarns, we see the possibility to increase the share of the shear bond (form fit) compared to yarns with a relatively smooth surface and, through this, to reliably control the bond resistance. In order to investigate the influence of profiling on the bond and tensile behavior, yarns with various profile characteristics as well as different impregnation and consolidation parameters are studied. A newly developed profiling technique is used for creating a defined tetrahedral profile. In the article, we present this approach and the first results from tensile and bond tests as well as micrographic analysis with profiled yarns. The study shows that bond properties of profiled yarns are superior to conventional yarns without profile, and a defined bond modification through variation of the profile geometry as well as the impregnation and consolidation parameters is possible.


Original languageEnglish
Article number5581
Number of pages21
Issue number16
Publication statusPublished - 14 Aug 2022

External IDs

Scopus 85137685456
PubMed 36013718
unpaywall 10.3390/ma15165581
WOS 000846575200001
ORCID /0000-0002-8976-6680/work/142236455
ORCID /0000-0002-5407-3948/work/142240632
ORCID /0000-0003-1867-9771/work/142245650
ORCID /0000-0001-9640-4373/work/142253029
ORCID /0000-0002-1596-7164/work/142255605



  • Bond behavior, Bond mechanisms, Bond test, Carbon reinforced concrete, Profiling technology, Tensile test