Bending behaviour of novel Textile Reinforced Concrete-foamed concrete (TRC-FC) sandwich elements
Journal article, 2017

A novel sandwich element design consisting of two facings made of carbon reinforced Textile Reinforced Concrete (TRC), a low density foamed concrete (FC) core and glass fibre reinforced polymer (GFRP) connecting devices was experimentally investigated according to quasi-static and cyclic quasi-static four-point bending. Optical measurements based on Digital Image Correlation (DIC) were taken during testing to enable a detailed analysis of the bending behaviour and level of composite action. A model, verified by the experiments, was developed based on non-linear finite element analysis (NLFEA) to gain further insight on the failure mechanisms. Under both loading conditions, the bending behaviour of the TRC-FC composite elements was characterized by favourable load bearing capacity, partial composite action, superior ductility and multiple fine cracking. The connecting devices were found to be the critical elements causing the initial failure mechanism in the form of localized pull-out within an element.

Foam concrete (FC)

Four-point bending test

Sandwich elements

Textile Reinforced Concrete (TRC)

Finite element analysis (FEA)


Natalie Williams Portal

Swedish Cement and Concrete Research Institute

Mathias Flansbjer

SP Sveriges Tekniska Forskningsinstitut AB

Kamyab Zandi

Swedish Cement and Concrete Research Institute

Lech Wlasak

Mostostal Warszawa

Katarina Malaga

Swedish Cement and Concrete Research Institute

Composite Structures

0263-8223 (ISSN)

Vol. 177 104-118

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Building Futures (2010-2018)

Materials Science

Subject Categories

Civil Engineering

Infrastructure Engineering

Other Civil Engineering

Building Technologies



More information

Latest update