<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></abstract>

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.

Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete

KTH Royal Institute of Technology, Division of Concrete Structures

Nordic Concrete Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Dynamic Measurements for Determining Poisson\u2019s 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...

Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete

Published Online: Dec 01, 2018

Page range: 95 - 106

Received: Mar 15, 2018

Accepted: May 11, 2018

DOI: https://doi.org/10.2478/ncr-2018-0006

Keywords
Modelling, testing, Poisson’s ratio, young concrete

© 2018 Lamis Ahmed, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete

Published Online: Dec 01, 2018

Page range: 95 - 106

Received: Mar 15, 2018

Accepted: May 11, 2018

DOI: https://doi.org/10.2478/ncr-2018-0006

KeywordsModelling, testing, Poisson’s ratio, young concrete

© 2018 Lamis Ahmed, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Modelling, testing, Poisson’s ratio, young concrete