Tetrahedral profiled carbon rovings for concrete reinforcement

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Abstract

Textile reinforcements have established themselves as a convincing alternative to conventional steel reinforcements in the building industry. Due to their high load-bearing capacities in addition to a smaller concrete cross section required, the bond between textile and concrete is extremely important. In contrast to ribbed steel bars ensuring a stable mechanical interlock with concrete (form fit), the bond force of carbon rovings has so far been transmitted primarily via the coating of the textile, i.e. by a cohesive adhesive bond with the concrete matrix (material fit). However, this material fit does not enable the efficient use of the mechanical load capacity of the textile reinforcement. Solutions involving profiled rovings promise significant
improvements in the bonding behaviour by creating an additional mechanical interlock with the concrete matrix. In order to achieve a form-fit effect between roving and concrete, a defined roving geometry based on ribbed steel bars has to be created. For this purpose, an innovative profiling process was developed and implemented; this included a reshaping-process with a uniform reorientation of all filaments, yet ensuring a linear orientation of each filament in the roving for minimizing yarn elongation under load.

Details

Original languageEnglish
Title of host publication20th AUTEX World Textile Conference - Unfolding the Future
EditorsFernando B.N. Ferreira, Ana Maria Rocha, Andrea Zille, António Dinis Marques, Raul Fangueiro
Place of PublicationSchweiz
PublisherTrans Tech Publications Ltd
Pages142-143
Number of pages2
ISBN (electronic)9783035724783
ISBN (print)9783035717747
Publication statusPublished - Sept 2021
Peer-reviewedYes

Conference

Title20th AUTEX World Textile Conference
SubtitleUnfolding the Future
Abbreviated titleAUTEX 2021
Conference number20
Duration5 - 9 September 2021
Degree of recognitionInternational event
LocationUniversity of Minho & online
CityGuimarães
CountryPortugal

External IDs

ORCID /0000-0002-5407-3948/work/142240630
ORCID /0000-0001-9640-4373/work/142253022
ORCID /0000-0002-1596-7164/work/142255591