Flexural strengthening of RC slabs with CRC and the influence of the positional accuracy

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

Abstract

Carbon Reinforced Concrete (CRC) can be used for new structures and to strengthen existing components. Carbon fibre rods and fabrics are used as reinforcement for new components. Besides CFRP-lamellas, grid-like carbon reinforcements and shotcrete are very suitable for strengthening. Due to the low concrete cover, thin strengthening layers can be realised, which minimise the additional dead load. Depending on the chosen fibre material and impregnation, different failure mechanisms can be observed. The fibre strand should preferably be able to reach the maximum stress under load, but at this stage, the bond behaviour has to be thoroughly considered to prevent failure due to pull-out or delamination. Two carbon reinforcement fabrics are currently being investigated in the research programme C3- Carbon Concrete Composite.This paper presents the results of large-scale tests on reinforced concrete slabs strengthened with CRC. In addition to the strengthening procedure and the large-scale component tests that have been carried out, this paper deals mainly with the recalculation of the test results and the positional accuracy of the carbon reinforcement and its influence on the flexural strength.

Details

OriginalspracheEnglisch
TitelMaterials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix
Redakteure/-innenBarzin Mobasher, Flavio de Andrade Silva
Herausgeber (Verlag)American Concrete Institute
Seiten243-257
Seitenumfang15
ISBN (elektronisch)9781641951333
PublikationsstatusVeröffentlicht - 19 Feb. 2021
Peer-Review-StatusJa

Publikationsreihe

Reihe ACI structural journal
Nummer19
BandSP-345
ISSN0889-3241

Konferenz

TitelMaterials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix at the Concrete Convention and Exposition - Fall 2019
Dauer20 - 24 Oktober 2019
StadtCincinnati
LandUSA/Vereinigte Staaten

Externe IDs

ORCID /0000-0002-1596-7164/work/142255611

Schlagworte

Schlagwörter

  • Calculation model, Carbon Reinforced Concrete (CRC), Experimental tests, Fabric Reinforced Cementitious Matrix (FRCM), Flexural strengthening of RC slabs, Positional accuracy, Textile Reinforced Concrete (TRC)