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Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load

In the last decades, fastening systems have become an essential part of the construction industry. Post-installed mechanical anchors are frequently used in concrete members to connect them with other load bearing structural members, or to attach appliances. Their performance is limited by the concre...

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Autores principales: Marcon, Marco, Ninčević, Krešimir, Boumakis, Ioannis, Czernuschka, Lisa-Marie, Wan-Wendner, Roman
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978088/
https://www.ncbi.nlm.nih.gov/pubmed/29723972
http://dx.doi.org/10.3390/ma11050711
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author Marcon, Marco
Ninčević, Krešimir
Boumakis, Ioannis
Czernuschka, Lisa-Marie
Wan-Wendner, Roman
author_facet Marcon, Marco
Ninčević, Krešimir
Boumakis, Ioannis
Czernuschka, Lisa-Marie
Wan-Wendner, Roman
author_sort Marcon, Marco
collection PubMed
description In the last decades, fastening systems have become an essential part of the construction industry. Post-installed mechanical anchors are frequently used in concrete members to connect them with other load bearing structural members, or to attach appliances. Their performance is limited by the concrete related failure modes which are highly influenced by the concrete mix design. This paper aims at investigating the effect that different aggregates used in the concrete mix have on the capacity of an undercut anchor under tensile quasi-static loading. Three concrete batches were cast utilising three different aggregate types. For two concrete ages (28 and 70 days), anchor tensile capacity and concrete properties were obtained. Concrete compressive strength, fracture energy and elastic modulus are used to normalize and compare the undercut anchor concrete tensile capacity employing some of the most widely used prediction models. For a more insightful comparison, a statistical method that yields also scatter information is introduced. Finally, the height and shape of the concrete cones are compared by highly precise and objective photogrammetric means.
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spelling pubmed-59780882018-05-31 Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load Marcon, Marco Ninčević, Krešimir Boumakis, Ioannis Czernuschka, Lisa-Marie Wan-Wendner, Roman Materials (Basel) Article In the last decades, fastening systems have become an essential part of the construction industry. Post-installed mechanical anchors are frequently used in concrete members to connect them with other load bearing structural members, or to attach appliances. Their performance is limited by the concrete related failure modes which are highly influenced by the concrete mix design. This paper aims at investigating the effect that different aggregates used in the concrete mix have on the capacity of an undercut anchor under tensile quasi-static loading. Three concrete batches were cast utilising three different aggregate types. For two concrete ages (28 and 70 days), anchor tensile capacity and concrete properties were obtained. Concrete compressive strength, fracture energy and elastic modulus are used to normalize and compare the undercut anchor concrete tensile capacity employing some of the most widely used prediction models. For a more insightful comparison, a statistical method that yields also scatter information is introduced. Finally, the height and shape of the concrete cones are compared by highly precise and objective photogrammetric means. MDPI 2018-05-01 /pmc/articles/PMC5978088/ /pubmed/29723972 http://dx.doi.org/10.3390/ma11050711 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Marcon, Marco
Ninčević, Krešimir
Boumakis, Ioannis
Czernuschka, Lisa-Marie
Wan-Wendner, Roman
Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load
title Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load
title_full Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load
title_fullStr Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load
title_full_unstemmed Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load
title_short Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load
title_sort aggregate effect on the concrete cone capacity of an undercut anchor under quasi-static tensile load
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978088/
https://www.ncbi.nlm.nih.gov/pubmed/29723972
http://dx.doi.org/10.3390/ma11050711
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