Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete

Knowledge of the elastic properties of concrete at early age is often a pre-requisite for numerical calculations. This paper discusses the use of a laboratory technique for determining Poisson’s ratio at early concrete age. A non-destructive test set-up using the impact resonance method has been tes...

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Main Author: Ahmed Lamis
Format: Article
Language:English
Published: Sciendo 2018-06-01
Series:Nordic Concrete Research
Subjects:
Online Access:https://doi.org/10.2478/ncr-2018-0006
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author Ahmed Lamis
author_facet Ahmed Lamis
author_sort Ahmed Lamis
collection DOAJ
description Knowledge of the elastic properties of concrete at early age is often a pre-requisite for numerical calculations. This paper discusses the use of a laboratory technique for determining Poisson’s ratio at early concrete age. A non-destructive test set-up using the impact resonance method has been tested and evaluated. With the method, it has been possible to obtain results already at 7 hours of concrete age. Poisson’s ratio is found to decrease sharply during the first 24 hours to reach a value of 0.08 and then increase to approximately 0.15 after seven days.
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spelling doaj.art-9216136f601a49d58881b762b9b03e542022-12-22T00:06:46ZengSciendoNordic Concrete Research2545-28192018-06-015819510610.2478/ncr-2018-0006Dynamic Measurements for Determining Poisson’s Ratio of Young ConcreteAhmed Lamis0Ph.D., Assistant Professor, KTH Royal Institute of Technology, Division of Concrete Structures, SE-100 44STOCKHOLM, SwedenKnowledge of the elastic properties of concrete at early age is often a pre-requisite for numerical calculations. This paper discusses the use of a laboratory technique for determining Poisson’s ratio at early concrete age. A non-destructive test set-up using the impact resonance method has been tested and evaluated. With the method, it has been possible to obtain results already at 7 hours of concrete age. Poisson’s ratio is found to decrease sharply during the first 24 hours to reach a value of 0.08 and then increase to approximately 0.15 after seven days.https://doi.org/10.2478/ncr-2018-0006modellingtestingpoisson’s ratioyoung concrete
spellingShingle Ahmed Lamis
Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete
Nordic Concrete Research
modelling
testing
poisson’s ratio
young concrete
title Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete
title_full Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete
title_fullStr Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete
title_full_unstemmed Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete
title_short Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete
title_sort dynamic measurements for determining poisson s ratio of young concrete
topic modelling
testing
poisson’s ratio
young concrete
url https://doi.org/10.2478/ncr-2018-0006
work_keys_str_mv AT ahmedlamis dynamicmeasurementsfordeterminingpoissonsratioofyoungconcrete