Investigations on the bond strength of non-metallic, textile reinforcements in concrete components

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Abstract

Knowledge of the bond behaviour of reinforcing elements in concrete
structures is crucial, as it has a particular influence on the load-bearing behaviour of components. Realistic mathematical modelling is therefore important in order to be able to make statements about, for example, deformations, cracking or anchoring. For reinforced concrete, this has been studied and described in detail, so that today’s design can be calculated with the sufficiently accurate, simple assumption of a constant, average bond stress as a function of the concrete tensile strength. For concrete with non-metallic reinforcement, such a formulation has yet to be derived. The large number of different types of reinforcing fibers and their impregnation, together with the desired slender design, result in different bond load mechanisms to be considered. This paper presents investigations on the characterization of the
local bond behaviour of non-metallic, textile reinforcing elements. The derivation of a material-specific parameter is investigated by means of tests on the composite material and with digital image correlation (DIC) and distributed fiber optic measurement (dFOS). In the still valid mechanical idealizations of the bond behaviour, their applicability is investigated.

Details

Original languageEnglish
Title of host publicationTransforming Construction: Advances in Fiber Reinforced Concrete
EditorsViktor Mechtcherine, Cesare Signorini, Dominik Junger
PublisherSpringer
Pages681-688
Number of pages8
ISBN (electronic)978-3-031-70145-0
ISBN (print)978-3-031-70144-3
Publication statusPublished - Sept 2024
Peer-reviewedYes

Conference

TitleXI International Symposium on Fiber Reinforced Concrete
Abbreviated titleBEFIB 2024
Conference number11
Duration15 - 18 September 2024
Website
Degree of recognitionInternational event
LocationDorint Hotel
CityDresden
CountryGermany

External IDs

ORCID /0000-0001-8735-1345/work/168207408

Keywords

Keywords

  • CRC, bond strength, carbon reinforced concrete, dFOS, fiber optic measurement, CRC, bond strength, carbon reinforced concrete, dFOS, fiber optic measurement