Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers

Modern masonry structures, apart from having a load-bearing function, are more and more subjected to additional non-structural requirements related to, e.g., thermal insulation and moisture control. This has respectively led to the introduction of thermal break layers, in practice often executed usi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Martijn Vanheukelom, Rajarshi Das, Hervé Degée, Bram Vandoren
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	autoclaved aerated concrete (AAC) damp proof course (DPC) initial shear strength EN 1052-3 Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/3aa19d6142724dc88b43c6512b7a9d4b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3aa19d6142724dc88b43c6512b7a9d4b
record_format	dspace
spelling	oai:doaj.org-article:3aa19d6142724dc88b43c6512b7a9d4b2021-11-25T19:04:02ZExperimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers10.3390/su1322127492071-1050https://doaj.org/article/3aa19d6142724dc88b43c6512b7a9d4b2021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/22/12749https://doaj.org/toc/2071-1050Modern masonry structures, apart from having a load-bearing function, are more and more subjected to additional non-structural requirements related to, e.g., thermal insulation and moisture control. This has respectively led to the introduction of thermal break layers, in practice often executed using autoclaved aerated concrete (AAC) blocks, and damp proof courses (DPC) in masonry walls. These modifications have an impact on the mechanical characteristics of the masonry, such as the shear strength. In this paper, an extensive experimental campaign is therefore conducted on masonry triplets to investigate the initial shear strength of concrete block and clay brick masonry, including AAC blocks. The impact of the the presence of a polyethylene DPC layer is also studied. Moreover, the position of the DPC membrane is varied, i.e., directly on top of the brick (which is generally not recommended yet common in construction practice) and in the middle of the mortar joint. In total, 138 shear tests were performed according to the EN 1052-3 standard, with low to moderate precompression levels. The test results focus on the differences in friction angle, shear modulus, and friction coefficient. It is concluded that the presence of an AAC block decreases the initial shear strength to a value which is lower than the one assumed by Eurocode 6. Moreover, when adding a DPC membrane, the shear strength is reduced even further to almost zero, in particular when the membrane is not put in the middle of the mortar joint.Martijn VanheukelomRajarshi DasHervé DegéeBram VandorenMDPI AGarticleautoclaved aerated concrete (AAC)damp proof course (DPC)initial shear strengthEN 1052-3Environmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12749, p 12749 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	autoclaved aerated concrete (AAC) damp proof course (DPC) initial shear strength EN 1052-3 Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	autoclaved aerated concrete (AAC) damp proof course (DPC) initial shear strength EN 1052-3 Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Martijn Vanheukelom Rajarshi Das Hervé Degée Bram Vandoren Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers
description	Modern masonry structures, apart from having a load-bearing function, are more and more subjected to additional non-structural requirements related to, e.g., thermal insulation and moisture control. This has respectively led to the introduction of thermal break layers, in practice often executed using autoclaved aerated concrete (AAC) blocks, and damp proof courses (DPC) in masonry walls. These modifications have an impact on the mechanical characteristics of the masonry, such as the shear strength. In this paper, an extensive experimental campaign is therefore conducted on masonry triplets to investigate the initial shear strength of concrete block and clay brick masonry, including AAC blocks. The impact of the the presence of a polyethylene DPC layer is also studied. Moreover, the position of the DPC membrane is varied, i.e., directly on top of the brick (which is generally not recommended yet common in construction practice) and in the middle of the mortar joint. In total, 138 shear tests were performed according to the EN 1052-3 standard, with low to moderate precompression levels. The test results focus on the differences in friction angle, shear modulus, and friction coefficient. It is concluded that the presence of an AAC block decreases the initial shear strength to a value which is lower than the one assumed by Eurocode 6. Moreover, when adding a DPC membrane, the shear strength is reduced even further to almost zero, in particular when the membrane is not put in the middle of the mortar joint.
format	article
author	Martijn Vanheukelom Rajarshi Das Hervé Degée Bram Vandoren
author_facet	Martijn Vanheukelom Rajarshi Das Hervé Degée Bram Vandoren
author_sort	Martijn Vanheukelom
title	Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers
title_short	Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers
title_full	Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers
title_fullStr	Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers
title_full_unstemmed	Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers
title_sort	experimental characterization of the initial shear strength of composite masonry including aac blocks and dpc layers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3aa19d6142724dc88b43c6512b7a9d4b
work_keys_str_mv	AT martijnvanheukelom experimentalcharacterizationoftheinitialshearstrengthofcompositemasonryincludingaacblocksanddpclayers AT rajarshidas experimentalcharacterizationoftheinitialshearstrengthofcompositemasonryincludingaacblocksanddpclayers AT hervedegee experimentalcharacterizationoftheinitialshearstrengthofcompositemasonryincludingaacblocksanddpclayers AT bramvandoren experimentalcharacterizationoftheinitialshearstrengthofcompositemasonryincludingaacblocksanddpclayers
_version_	1718410335405211648

Experimental Characterization of the Initial Shear Strength of Composite Masonry including AAC Blocks and DPC Layers

Ejemplares similares