Design and manufacturing of novel thermoplastic CFRP rods for carbon concrete composites

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

Abstract

The substitution of reinforced concrete with carbon concrete allows the reduction of materials used in civil engineering. The use of lighter and more chemically resistant carbon fibre reinforced plastics as a reinforcing material makes it possible to build more thin-walled than with conventional steel reinforcement. This allows the savings of cement and concrete as well as realizing of lighter and more filigree buildings. In addition to planar reinforcement structures, bar reinforcements are used for larger loads, which are focused here. A variant classification for the design of FRP rebars is developed, which shows the variety of design options and forms the basis for the conception of manufacturing processes. Thus, FRP rebars can be manufactured using pure primary forming or primary forming techniques in combination with reforming and separating processes. Variants of new types of thermoplastic CFRP rebars were tested by means of different manufacturing processes. The focus was also placed on efficient manufacturing processes, which should form as few materials as possible into a rebar quickly and in just a few process steps. The originated test specimens were then tested for their tensile strength. For this purpose, suitable testing fixations were developed. The tensile tests showed that all manufactured rod variants have at least 1.5 higher strength than conventional steel reinforcing rods. This shows that an efficient production of load-bearing thermoplastic CFRP rebars is feasible.

Details

Original languageEnglish
Title of host publicationECCM 2018 - 18th European Conference on Composite Materials
PublisherApplied Mechanics Laboratory
ISBN (print)978-151089693-2
Publication statusPublished - 2020
Peer-reviewedYes

Conference

Title18th European Conference on Composite Materials
Abbreviated titleECCM 18
Conference number18
Duration25 - 28 June 2018
Degree of recognitionInternational event
CityAthens
CountryGreece

External IDs

Scopus 85084164672
ORCID /0000-0003-1370-064X/work/142243478

Keywords

Keywords

  • carbon concrete composites, pultrusion, rebar design