Influence of the Poisson’s Ratio on the Value of the Dynamic Modulus of Elasticity of Cement Materials in the Early Stage of Ageing

Abstract:

The paper deals with the influence of the Poisson’s ratio on the calculated modulus of elasticity of a cementitious composite in the early stage of its ageing. The dynamic modulus of elasticity was determined in the first 24 hours of ageing of the material using the Vikasonic ultrasonic device. Within the experiment, two types of cementitious composites were mixed - cement paste and cement mortar, both having the same water/cement ratio. It is presumed that the value of the dynamic modulus of elasticity calculated on the basis of ultrasonic measurement is closely related to the value of the Poisson’s ratio, which is not constant during ageing of the cementitious composite but varies depending on the degree of hydration of the material. The output of the paper is a comparison of the development of the dynamic modulus of elasticity calculated using different values of the Poisson’s ratio.

• Periodical: Solid State Phenomena (Volume 292)
• Pages: 50-55
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.292.50
• Online since: June 2019
• Authors: Romana Halamová*, Dalibor Kocáb, Barbara Kucharczyková, Petr Misák, Martin Alexa
• Keywords: Cementitious Composite, Early Stage of Ageing, Modulus of Elasticity, Poisson’s Ratio

References

[1] P. Misák, T. Vymazal, Modul pružnosti vs. pevnost v tlaku (in Czech), Beton TKS. 2 (2009) 58-59.

[2] R. V. Silva, J. de Brito, R. K. Dhir, Establishing a relationship between modulus of elasticity and compressive strength of recycled aggregate concrete, Journal of Cleaner Production. 112 (2016) 2171-2186.

DOI: 10.1016/j.jclepro.2015.10.064

[3] P. Huňka, J. Kolísko, M. Vokáč, S. Řeháček, Test and Technological Influences on Modulus of Elasticity of Concrete – Recapitulation, Procedia Engineering. 65 (2013) 266-272.

DOI: 10.1016/j.proeng.2013.09.041

[4] K. Křížová, R. Hela, Selected Technological Factors Influencing the Modulus of Elasticity of Concrete, International Journal. of Civil and Environmental. Engineering. 8 (2014) 593-595.

[5] A. Carlos, A. M. De Arruda, T. J. da Silva, P. De Carvalho, L. M.Trautwein, Influence of coarse aggregate on concrete's elasticity modulus, Acta Scientiarum Technology 39 (2017) 17 - 25.

DOI: 10.4025/actascitechnol.v39i1.29873

[6] C. Boulay, S. Staquet, M. Azenha, A. Deraemaeker, M. Crespini, J. Carette, J. Granja, , B. Delsaute, C. Dumoulin, G. Karaiskos,. Monitoring elastic properties of concrete since very early age by means of cyclic loadings, ultrasonic measurements, natural resonant frequency of composite beam (emm-arm) and with smart aggregates, In VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures, Toledo, Spain. (2013).

DOI: 10.1111/str.12172

[7] R. S. Lakes, Negative-Poisson's-Ratio Materials: Auxetic Solids, Annual Review of Materials Research. 47 (2017) 63 - 81.

DOI: 10.1146/annurev-matsci-070616-124118

[8] ČSN 73 1372. Nedestruktivní zkoušení betonu - Rezonanční metoda zkoušení betonu (in Czech), ÚNMZ, Prague, (2012).

DOI: 10.51704/cjce.2016.vol2.iss1.pp76-82

[9] R. Chamrova,. Modelling and Measurement of Elastic Properties of Hydrating Cement Paste, Federal institute of technology in Lausanne. (2010).

[10] Information on http://www.schleibinger.com/cmsimple/en/?Setting_and_Maturity: Ultrasonic_Setting_Measurement.

[11] ČSN 73 1371. Nedestruktivní zkoušení betonu - Ultrazvuková impulzová metoda zkoušení betonu (in Czech), ÚNMZ, Prague, (2011).

DOI: 10.51704/cjce.2016.vol2.iss1.pp76-82