Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC

In order to better match the multi-level structural characteristics and multi-scale fracture process of cementitious composite, multi-scale hybrid fiber-reinforced strain hardening cementitious composite (MsHySHCC) was designed by adding hooked steel fiber and calcium carbonate (CaCO3) whisker into...

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Main Authors: Zhang, C., Yuan, Z., Shen, Y.
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/162694
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1626942022-11-07T01:39:20Z Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC Zhang, C. Yuan, Z. Shen, Y. School of Civil and Environmental Engineering Engineering::Civil engineering Fibre Reinforcement Compressive Strength In order to better match the multi-level structural characteristics and multi-scale fracture process of cementitious composite, multi-scale hybrid fiber-reinforced strain hardening cementitious composite (MsHySHCC) was designed by adding hooked steel fiber and calcium carbonate (CaCO3) whisker into conventional polyvinyl alcohol (PVA) fiber-reinforced SHCC. Compressive properties of PVA-SHCC and MsHySHCC were evaluated experimentally. The results indicate that the designed MsHySHCC had a better compressive performance than that of PVA-SHCC. Moderately partially substituted PVA fibers by steela fiber and CaCO3 whisker enhanced the compressive parameters, however, further substitution of PVA fibers by increasing the content of CaCO3 whisker didn’t bring a higher promotion. Two kinds of semi-theoretical compression constitutive models were developed from the perspective of damage mechanics theory and geometrical mathematical description, respectively. It was found that both of the proposed models can be applied to predict the uniaxial compressive stress-strain relationships of PVA-SHCC and MsHySHCCs. Published version The Natural Science Foundation of China (51908247) and the Opening Project of State Key Laboratory for GeoMechanics and Deep Underground Engineering (KFJJ202007) are gratefully acknowledged by the authors. 2022-11-07T01:39:20Z 2022-11-07T01:39:20Z 2022 Journal Article Zhang, C., Yuan, Z. & Shen, Y. (2022). Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC. Materiales De Construccion, 72(345), e272-. https://dx.doi.org/10.3989/mc.2022.06021 0465-2746 https://hdl.handle.net/10356/162694 10.3989/mc.2022.06021 2-s2.0-85127171401 345 72 e272 en Materiales de Construccion © 2022 CSIC. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
Fibre Reinforcement
Compressive Strength
spellingShingle Engineering::Civil engineering
Fibre Reinforcement
Compressive Strength
Zhang, C.
Yuan, Z.
Shen, Y.
Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC
description In order to better match the multi-level structural characteristics and multi-scale fracture process of cementitious composite, multi-scale hybrid fiber-reinforced strain hardening cementitious composite (MsHySHCC) was designed by adding hooked steel fiber and calcium carbonate (CaCO3) whisker into conventional polyvinyl alcohol (PVA) fiber-reinforced SHCC. Compressive properties of PVA-SHCC and MsHySHCC were evaluated experimentally. The results indicate that the designed MsHySHCC had a better compressive performance than that of PVA-SHCC. Moderately partially substituted PVA fibers by steela fiber and CaCO3 whisker enhanced the compressive parameters, however, further substitution of PVA fibers by increasing the content of CaCO3 whisker didn’t bring a higher promotion. Two kinds of semi-theoretical compression constitutive models were developed from the perspective of damage mechanics theory and geometrical mathematical description, respectively. It was found that both of the proposed models can be applied to predict the uniaxial compressive stress-strain relationships of PVA-SHCC and MsHySHCCs.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Zhang, C.
Yuan, Z.
Shen, Y.
format Article
author Zhang, C.
Yuan, Z.
Shen, Y.
author_sort Zhang, C.
title Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC
title_short Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC
title_full Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC
title_fullStr Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC
title_full_unstemmed Experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced SHCC
title_sort experimental study and theoretical modeling for the compressive stress-strain relationship of multi-scale hybrid fiber-reinforced shcc
publishDate 2022
url https://hdl.handle.net/10356/162694
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