Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material

This paper investigates the seismic behavior of novel stone masonry joints using ductile engineered cementitious composite (ECC) as a substitute for ordinary mortar. Ten stone masonry joints with different types of mortar/ECC were tested under axial and cyclic loads. The filling materials of mortar...

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Autores principales:	Wei Hou, Xinghua Dai, Zheyu Yang, Hanhuang Huang, Xiaoli Wang, Pandeng Zheng, Yixin Zhang, Zixiong Guo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	stone masonry joints engineered cementitious composite (ECC) seismic performance shear strength model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/5e27f4dde2b84d4db38e0af887ce0cd6
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spelling	oai:doaj.org-article:5e27f4dde2b84d4db38e0af887ce0cd62021-11-11T18:11:04ZSeismic Behavior of Stone Masonry Joints with ECC as a Filling Material10.3390/ma142166711996-1944https://doaj.org/article/5e27f4dde2b84d4db38e0af887ce0cd62021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6671https://doaj.org/toc/1996-1944This paper investigates the seismic behavior of novel stone masonry joints using ductile engineered cementitious composite (ECC) as a substitute for ordinary mortar. Ten stone masonry joints with different types of mortar/ECC were tested under axial and cyclic loads. The filling materials of mortar joints tested included ordinary mortar, polymer mortar, ECC, and composite mortar with two combination proportions of ECC and ordinary mortar. The test results indicated that ECC specimens exhibited a more stable hysteretic response as well as an improvement in strength, deformation, energy dissipation, and strength degradation. The ECC mortar joints maintained integrity during the entire loading process due to the “self-confinement” effect of ECC. A partial substitution of mortar with ECC could provide effective reinforcement and confinement to prevent mortar failure and peeling, thereby allowing such specimens to approach the seismic performance of ECC specimens. Based on the trend of shear strength variations, a corresponding failure process is defined for ECC/mortar joints under cyclic and axial compressive loads, including four distinct stages: linear elastic, crack-developing stage, interface debonding, and friction sliding. New equations are proposed for predicting the shear strength and residual shear strength of the ECC/mortar joints on the basis of the test results, which are validated in the composite mortar specimens.Wei HouXinghua DaiZheyu YangHanhuang HuangXiaoli WangPandeng ZhengYixin ZhangZixiong GuoMDPI AGarticlestone masonryjointsengineered cementitious composite (ECC)seismic performanceshear strength modelTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6671, p 6671 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	stone masonry joints engineered cementitious composite (ECC) seismic performance shear strength model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	stone masonry joints engineered cementitious composite (ECC) seismic performance shear strength model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Wei Hou Xinghua Dai Zheyu Yang Hanhuang Huang Xiaoli Wang Pandeng Zheng Yixin Zhang Zixiong Guo Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material
description	This paper investigates the seismic behavior of novel stone masonry joints using ductile engineered cementitious composite (ECC) as a substitute for ordinary mortar. Ten stone masonry joints with different types of mortar/ECC were tested under axial and cyclic loads. The filling materials of mortar joints tested included ordinary mortar, polymer mortar, ECC, and composite mortar with two combination proportions of ECC and ordinary mortar. The test results indicated that ECC specimens exhibited a more stable hysteretic response as well as an improvement in strength, deformation, energy dissipation, and strength degradation. The ECC mortar joints maintained integrity during the entire loading process due to the “self-confinement” effect of ECC. A partial substitution of mortar with ECC could provide effective reinforcement and confinement to prevent mortar failure and peeling, thereby allowing such specimens to approach the seismic performance of ECC specimens. Based on the trend of shear strength variations, a corresponding failure process is defined for ECC/mortar joints under cyclic and axial compressive loads, including four distinct stages: linear elastic, crack-developing stage, interface debonding, and friction sliding. New equations are proposed for predicting the shear strength and residual shear strength of the ECC/mortar joints on the basis of the test results, which are validated in the composite mortar specimens.
format	article
author	Wei Hou Xinghua Dai Zheyu Yang Hanhuang Huang Xiaoli Wang Pandeng Zheng Yixin Zhang Zixiong Guo
author_facet	Wei Hou Xinghua Dai Zheyu Yang Hanhuang Huang Xiaoli Wang Pandeng Zheng Yixin Zhang Zixiong Guo
author_sort	Wei Hou
title	Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material
title_short	Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material
title_full	Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material
title_fullStr	Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material
title_full_unstemmed	Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material
title_sort	seismic behavior of stone masonry joints with ecc as a filling material
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5e27f4dde2b84d4db38e0af887ce0cd6
work_keys_str_mv	AT weihou seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT xinghuadai seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT zheyuyang seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT hanhuanghuang seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT xiaoliwang seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT pandengzheng seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT yixinzhang seismicbehaviorofstonemasonryjointswitheccasafillingmaterial AT zixiongguo seismicbehaviorofstonemasonryjointswitheccasafillingmaterial
_version_	1718431887850995712

Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material

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