In-plane behaviour of expanded polystyrene core reinforced concrete sandwich panels

•Behavior of EPS core sandwich panel under in-plane loading.•Use of EPS core sandwich panel as axial compression member.•Effect of thickness on ultimate axial load carrying capacity.•Effect of thickness on in-plane shear strength.•Surface strain distribution subject to in-plane and axial loading.•Us...

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Bibliographic Details
Published inConstruction & building materials Vol. 269; p. 121804
Main Authors Ahmad, Adil, Singh, Yogendra
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.02.2021
Subjects
Composite
Diagonal compression
Digital Image Correlation (DIC)
Expanded polystyrene core
In-plane axial compression
Reinforced concrete sandwich panels
Reinforced concrete sandwich panels
Expanded polystyrene core
Digital Image Correlation (DIC)
In-plane axial compression
Composite
Diagonal compression
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Summary:•Behavior of EPS core sandwich panel under in-plane loading.•Use of EPS core sandwich panel as axial compression member.•Effect of thickness on ultimate axial load carrying capacity.•Effect of thickness on in-plane shear strength.•Surface strain distribution subject to in-plane and axial loading.•Use of Digital image correlation system. The structural behavior of Expanded Polystyrene (EPS) core Reinforced Concrete Sandwich Panels (RCSP) under axial and in-plane shear loading is studied, experimentally. An experimental study is conducted on RCSP consisting of factory made corrugated EPS core, welded wire mesh, and orthogonal shear connectors. Total 14 specimens (six of axial compression and eight of diagonal compression) are constructed and tested. The specimens are tested in displacement control mode with Digital Image Correlation (DIC) to measure displacements and strains. The mode of failure, propagation of cracks, ultimate axial load carrying capacity, in-plane shear strength, and stress–strain curves are presented in this article. The experimentally obtained axial load capacity and shear strength are also compared with those calculated analytically. The axial load capacity obtained analytically is in good agreement with experimental results, but the shear strength obtained from experiment is much higher than that estimated using the design codes for reinforced concrete.
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2020.121804