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Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study

A new experimental program, focusing on the evolution of the Young’s modulus, uniaxial compressive strength, shrinkage and creep of shotcrete is presented. The laboratory tests are, starting at very young ages of the material, conducted on two different types of specimens sampled at the site of the...

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Autores principales: Neuner, Matthias, Cordes, Tobias, Drexel, Martin, Hofstetter, Günter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615721/
https://www.ncbi.nlm.nih.gov/pubmed/28892007
http://dx.doi.org/10.3390/ma10091067
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author Neuner, Matthias
Cordes, Tobias
Drexel, Martin
Hofstetter, Günter
author_facet Neuner, Matthias
Cordes, Tobias
Drexel, Martin
Hofstetter, Günter
author_sort Neuner, Matthias
collection PubMed
description A new experimental program, focusing on the evolution of the Young’s modulus, uniaxial compressive strength, shrinkage and creep of shotcrete is presented. The laboratory tests are, starting at very young ages of the material, conducted on two different types of specimens sampled at the site of the Brenner Basetunnel. The experimental results are evaluated and compared to other experiments from the literature. In addition, three advanced constitutive models for shotcrete, i.e., the model by Meschke, the model by Schädlich and Schweiger, and the model by Neuner et al., are validated on the basis of the test data, and the capabilities of the models to represent the observed shotcrete behavior are assessed. Hence, the gap between the the outdated experimental data on shotcrete available in the literature on the one hand and the nowadays available advanced shotcrete models, on the other hand, is closed.
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spelling pubmed-56157212017-09-28 Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study Neuner, Matthias Cordes, Tobias Drexel, Martin Hofstetter, Günter Materials (Basel) Article A new experimental program, focusing on the evolution of the Young’s modulus, uniaxial compressive strength, shrinkage and creep of shotcrete is presented. The laboratory tests are, starting at very young ages of the material, conducted on two different types of specimens sampled at the site of the Brenner Basetunnel. The experimental results are evaluated and compared to other experiments from the literature. In addition, three advanced constitutive models for shotcrete, i.e., the model by Meschke, the model by Schädlich and Schweiger, and the model by Neuner et al., are validated on the basis of the test data, and the capabilities of the models to represent the observed shotcrete behavior are assessed. Hence, the gap between the the outdated experimental data on shotcrete available in the literature on the one hand and the nowadays available advanced shotcrete models, on the other hand, is closed. MDPI 2017-09-11 /pmc/articles/PMC5615721/ /pubmed/28892007 http://dx.doi.org/10.3390/ma10091067 Text en © 2017 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
Neuner, Matthias
Cordes, Tobias
Drexel, Martin
Hofstetter, Günter
Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study
title Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study
title_full Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study
title_fullStr Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study
title_full_unstemmed Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study
title_short Time-Dependent Material Properties of Shotcrete: Experimental and Numerical Study
title_sort time-dependent material properties of shotcrete: experimental and numerical study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615721/
https://www.ncbi.nlm.nih.gov/pubmed/28892007
http://dx.doi.org/10.3390/ma10091067
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