Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete

Ahmed, Lamis

doi:10.2478/ncr-2018-0006

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.

References

1. Ahmed L, Ansell A & Malm R: “Numerical Modelling and Evaluation of Laboratory Tests with Impact Loaded Young Concrete Prisms,” Materials and Structures, Vol. 49, No. 11, November 2016, pp. 4691-4704.10.1617/s11527-016-0817-5
Search in Google Scholar Back to article
2. Anson M & Newman K: “The Effect of Mix Proportions and Method of Testing on Poisson’s Ratio for Mortars and Concretes,” Magazine of Concrete Research, Vol. 18, No. 56, September 1966, pp. 115-130.10.1680/macr.1966.18.56.115
Open DOI Search in Google Scholar Back to article
3. Byfors J: “Plain Concrete at Early Ages,” Research Fo 3:80, Swedish Cement and Concrete Institute, Stockholm, 1980, 464 p.
Search in Google Scholar Back to article
4. Mesbah H A, Lachemi M & Aitcin P-C: “Determination of Elastic Properties of High-Performance Concrete at Early Ages,” ACI Material Journal, Vol. 99, No.1, January 2002, pp. 37-41.10.14359/11314
Search in Google Scholar Back to article
5. Oluokun F A, Burdette E G & Deatherage J H: “Elastic Modulus, Poisson’s Ratio and Compressive Strength Relationship at Early Ages,” ACI Journal, Vol. 88, No.1, January 1991, pp. 3-10.10.14359/2303
Search in Google Scholar Back to article
6. EN 1992-1-1: “Eurocode 2: Design of Concrete Structures,” Part 1-1 “General Rules and Rules for Buildings,” European Committee for Standardisation (CEN), Brussels, 2004, 236 p.
Search in Google Scholar Back to article
7. Bryne L E: “Time Dependent Material Properties of Shotcrete,” Bulletin No. 124, Dept. of Civil and Architectural Engineering, KTH Royal Institute of Technology, Stockholm, Sweden, 2014, 79 p.
Search in Google Scholar Back to article
8. ASTM C215 − 14: “Standard Test Method for Fundamental Transverse, Longitudinal, and Torsional Frequencies of Concrete Specimens,” ASTM International; West Conshohocken, Pa, USA, December 2014, 7 p.
Search in Google Scholar Back to article
9. Hewlett-Packard: “The Fundamentals of Signal Analysis,” Application Note 243, Agilent Technologies, USA, 2000, 86 p
Search in Google Scholar Back to article
10. Mathworks Matlab. See http://www.mathworks.com/products/matlab/for further details. Accessed 14/03/2018.
Search in Google Scholar Back to article
11. Philleo R E: “Comparison of Results of three Methods for Determining Young’s Modulus of Elasticity of Concrete,” ACI Journal, Vol. 26, No. 5, January 1955, pp. 461–469.
Search in Google Scholar Back to article

Dynamic Measurements for Determining Poisson’s Ratio of Young Concrete

Abstract

Paradigm

My account