Spacers for 3D Textiles as Reinforcement in Cement Composites: Influence on the Flexural and Cracking Behavior

Onderzoeksoutput: Conference paper

Samenvatting

Discrete spacers allow to transversally connect planar textiles and to transform them into pseudo-3D architectures. These 3D textiles can provide the optimal reinforcement in cement composites as the concrete casting process is enhanced and the textile placement within the mould is well-controlled. This research investigated the effect of discrete spacer connections on the flexural properties and cracking behaviour of TRCs and performed a comparison with equivalent 2D TRC systems (same in-plane textiles but without connections) and with knitted 3D textiles. Additional investigated parameters were the material of the reinforcement (glass, carbon) and the density of the textile (fibre volume fraction of the composite). A four-point bending experimental campaign was conducted
on four different textile configurations containing (i) no connections (ref), (ii) four spacer connections distributed over the shear zone, (iii) nine spacer connections distributed over the entire length between the supports (both shear and constant moment zone) and (iv) 3D knitted connections. The spacer connections resulted in a pronounced post-cracking stiffness increase and a positive influence on the crack formation of the TRC. Their influence was however dependent on the fibre volume fraction (Vf) of the in-plane reinforcement; configurations with a higher Vf required a higher degree of connections to showing a post-cracking stiffness increase.
Originele taal-2English
TitelStrain Hardening Cementitious Composites
SubtitelSHCC5
UitgeverijSpringer
HoofdstukNew Materials and Process Technology
Pagina's217-227
Aantal pagina's11
Volume39
ISBN van elektronische versie978-3-031-15805-6
ISBN van geprinte versie978-3-031-15804-9
DOI's
StatusPublished - 2023
Evenement5th international workshop on Strain Hardening Cementitious Composites - Gifu, Japan
Duur: 11 sep 202213 sep 2022

Publicatie series

NaamRILEM Bookseries
ISSN van geprinte versie2211-0844
ISSN van elektronische versie2211-0852

Conference

Conference5th international workshop on Strain Hardening Cementitious Composites
Verkorte titelSHCC5
Land/RegioJapan
StadGifu
Periode11/09/2213/09/22

Bibliografische nota

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Vingerafdruk

Duik in de onderzoeksthema's van 'Spacers for 3D Textiles as Reinforcement in Cement Composites: Influence on the Flexural and Cracking Behavior'. Samen vormen ze een unieke vingerafdruk.

Citeer dit