The Influence of High Temperatures and Time on the Material and Mechanical Properties of Cement Binder with Fly Ash

Abstract:

The paper deals with the use of fly ash in cement and concrete. Fly ash, primarily waste material, can be used as a binder because of pozzolanic properties. This fact positively influences the economic and ecological part of the construction. At present, also in the context of higher fire protection requirements fly ash, it is mentioned as a possible material for the protection of structures from fire. The article presents and discusses the results of destructive tests of tensile strength and compressive strength and non-destructive verification of dynamic modulus of elasticity of cement pastes with fly ash after high temperature load. The test samples were almost six years old.

• Periodical: Key Engineering Materials (Volume 760)
• Pages: 119-126
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.760.119
• Online since: January 2018
• Authors: Ondřej Zobal*, Pavel Padevět
• Keywords: Cement, Compressive Strength, Dynamic Modulus of Elasticity, Fly Ash, Temperature, Tensile Strength

References

[1] O. Zobal, Use of fly ash in cement binder and concrete, PhD Thesis, Czech Technical University in Prague, Faculty of Civil Engineering. (2017).

[2] W. Kubissa, R. Jaskulski, P. Reiterman, Ecological Concrete Based on Blast-Furnace Cement with Incorporated Coarse Recycled Concrete Aggregate and Fly Ash Addition, Journal of Renewable Materials 5 (2017) 53-61.

DOI: 10.7569/jrm.2017.634103

[3] Information on http: /www. bbc. com/news/world-middle-east-36848521.

[4] Information on http: /www. bbc. com/news/uk-england-london-40272168¨.

[5] Information on http: /www. bbc. com/news/world-middle-east-40822269.

[6] M. Broucek, M. Sejnoha, P. Reiterman, Fiber Reinforced Fly Ash Concrete and Extreme Fires, Key Engineering Materials 722 (2017) 12-17.

DOI: 10.4028/www.scientific.net/kem.722.12

[7] M. S. Khan, J. Prasad, H. Abbas, Effect of High Temperature on High-Volume Fly Ash Concrete, Arabian Journal for Science and Engineering, 2013, Volume 38, Number 6, Page 1369, https: /doi. org/10. 1007/s13369-013-0606-1.

DOI: 10.1007/s13369-013-0606-1

[8] Arabi N.S. Al Qadi, Sleiman M. Al-Zaidyeen, Effect of fibre content and specimen shape on residual strength of polypropylene fibre self-compacting concrete exposed to elevated temperatures, In Journal of King Saud University - Engineering Sciences, Volume 26, Issue 1, 2014, Pages 33-39, ISSN 1018-3639, https: /doi. org/10. 1016/j. jksues. 2012. 12. 002.

DOI: 10.1016/j.jksues.2012.12.002

[9] H. Cheng-Yong, et al. Thermal Resistance Variations of Fly Ash Geopolymers: Foaming Responses. Sci. Rep. 7, 45355; doi: 10. 1038/srep45355 (2017).

DOI: 10.1038/srep45355

[10] J. Kotatkova, J. Zatloukal, P. Reiterman, J. Patera, Z. Hlavac, P. Brabec, The effect of elevated temperatures and nuclear radiation on the properties of biological shielding concrete, Key Engineering Materials 677 (2016) 8-16.

DOI: 10.4028/www.scientific.net/kem.677.8

[11] P. Padevět; R. Lovichová, The Changes of Material Properties of the Cement Paste with Fly Ash Exposed to High Temperatures, WSEAS Transactions on Applied and Theoretical Mechanics. 2013, 2013(4), 304-312. ISSN 1991-8747. ¨.

DOI: 10.4028/www.scientific.net/amr.742.187

[12] M.J. McCarthy, R.K. Dhir: Development of high volume fly ash cements for use in concrete construction, Fuel, 1423-1432, (2005).

DOI: 10.1016/j.fuel.2004.08.029

[13] A. M. Neville. Properties of concrete. 2009. New York. pp.503-505. ISBN 0-582-23070-5.

[14] D.P. Bentz, C.F. Ferraris, I. De la Varga, M.A. Peltz, and J.A. Winpigler: Mixture Proportioning Options for Improving High Volume Fly Ash Concretes, Int. J. Pavement Res. Technol. 3(5): 234-240, (2010).

[15] R. Siddique: Performance characteristics of high-volume Class F fly ash concrete, Cement and Concrete Research 34, 487-493, (2011).

DOI: 10.1016/j.cemconres.2003.09.002

[16] O. Zobal, V. Šmilauer, L. Kopecký, et al., Analysis of concrete from the body of the Orlik dam after fifty years, In: Beton – technologie, konstrukce, sanace, 02/2014, pp.19-25. ISSN 1213-3116.