Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System

The developed study aimed at investigating the mechanical behavior of a new type of self-insulating concrete masonry unit (SCMU). A total of 12 full-grouted wall assemblages were prepared and tested for compression and shear strength. In addition, different axial stress ratios were used in shear tes...

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Main Authors: Abu-Bakre Abdelmoneim Elamin Mohamad, Zhongfan Chen
Format: Article
Language:English
Published: MDPI AG 2016-08-01
Series:Applied Sciences
Subjects:
Online Access:http://www.mdpi.com/2076-3417/6/9/245
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author Abu-Bakre Abdelmoneim Elamin Mohamad
Zhongfan Chen
author_facet Abu-Bakre Abdelmoneim Elamin Mohamad
Zhongfan Chen
author_sort Abu-Bakre Abdelmoneim Elamin Mohamad
collection DOAJ
description The developed study aimed at investigating the mechanical behavior of a new type of self-insulating concrete masonry unit (SCMU). A total of 12 full-grouted wall assemblages were prepared and tested for compression and shear strength. In addition, different axial stress ratios were used in shear tests. Furthermore, numerical models were developed to predict the behavior of grouted specimens using simplified micro-modeling technique. The mortar joints were modeled with zero thickness and their behavior was applied using the traction–separation model of the cohesive element. The experimental results revealed that the shear resistance increases as the level of precompression increases. A good agreement between the experimental results and numerical models was observed. It was concluded that the proposed models can be used to deduct the general behavior of grouted specimens.
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spelling doaj.art-1a95318801514a838e466373966f8de82022-12-21T17:32:14ZengMDPI AGApplied Sciences2076-34172016-08-016924510.3390/app6090245app6090245Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry SystemAbu-Bakre Abdelmoneim Elamin Mohamad0Zhongfan Chen1Key Laboratory of RC & PC Structures of Ministry of Education, Southeast University, Nanjing 210096, ChinaKey Laboratory of RC & PC Structures of Ministry of Education, Southeast University, Nanjing 210096, ChinaThe developed study aimed at investigating the mechanical behavior of a new type of self-insulating concrete masonry unit (SCMU). A total of 12 full-grouted wall assemblages were prepared and tested for compression and shear strength. In addition, different axial stress ratios were used in shear tests. Furthermore, numerical models were developed to predict the behavior of grouted specimens using simplified micro-modeling technique. The mortar joints were modeled with zero thickness and their behavior was applied using the traction–separation model of the cohesive element. The experimental results revealed that the shear resistance increases as the level of precompression increases. A good agreement between the experimental results and numerical models was observed. It was concluded that the proposed models can be used to deduct the general behavior of grouted specimens.http://www.mdpi.com/2076-3417/6/9/245self-insulating concrete masonry unitsmasonry assemblagecompression testshear testmicro modelingcohesive surface-based behaviorfull grouted masonry
spellingShingle Abu-Bakre Abdelmoneim Elamin Mohamad
Zhongfan Chen
Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System
Applied Sciences
self-insulating concrete masonry units
masonry assemblage
compression test
shear test
micro modeling
cohesive surface-based behavior
full grouted masonry
title Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System
title_full Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System
title_fullStr Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System
title_full_unstemmed Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System
title_short Experimental and Numerical Analysis of the Compressive and Shear Behavior for a New Type of Self-Insulating Concrete Masonry System
title_sort experimental and numerical analysis of the compressive and shear behavior for a new type of self insulating concrete masonry system
topic self-insulating concrete masonry units
masonry assemblage
compression test
shear test
micro modeling
cohesive surface-based behavior
full grouted masonry
url http://www.mdpi.com/2076-3417/6/9/245
work_keys_str_mv AT abubakreabdelmoneimelaminmohamad experimentalandnumericalanalysisofthecompressiveandshearbehaviorforanewtypeofselfinsulatingconcretemasonrysystem
AT zhongfanchen experimentalandnumericalanalysisofthecompressiveandshearbehaviorforanewtypeofselfinsulatingconcretemasonrysystem