STUDY OF CONCRETE SAMPLES WITH VARIOUS CONTENTS OF SLAG UNDER SULPHATES ATTACK USING MATHEMATICAL APPROACH

Authors

  • Vlasta Ondrejka Harbuľáková Technical University of Košice, Faculty of Civil Engineering, Vysokoškolská 4, 04200 Košice, Slovakia
  • Adriana Eštoková Technical University of Košice, Faculty of Civil Engineering, Vysokoškolská 4, 04200 Košice, Slovakia
  • Martina Kovalčíková Technical University of Košice, Faculty of Civil Engineering, Vysokoškolská 4, 04200 Košice, Slovakia

DOI:

https://doi.org/10.51704/cjce.2016.vol2.iss2.pp116-119

Keywords:

Concrete corrosion, correlation analysis, magnesium sulphate, sulphuric acid

Abstract

Mineral admixtures are used as a partial replacement for ordinary portland cement, and the progress of sulphate attack can be evaluated by several methods (pH values changes of liquid phases, loss in mass, dynamic modulus, strength, x-ray analysis, mathematical analysis). Leaching of the calcium and silicon ions from the concrete composites of various slag cement replacement (65% and 95% of slag) exposed to two different aggressive sulphate environments (sulphuric acid and magnesium sulphate) was measured by using X-ray fluorescence analysis (XRF). Consequently a statistical analysis of different media´ influence on the concrete samples deterioration was performed. The correlation between the Ca/Si leached-out masses (the same aggressive media) as well as between the concentrations of silicon and calcium each other (different aggressive media) was calculated a presented.

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References

Zhutovsky, S., Douglas Hooton, R. 2017. Experimental study on physical sulfate salt attack, Volume 50, Issue 1, Article number 54, Materials and Structures/Materiaux et Constructions.

Douglas Hooton, R. 2015. Current developments and future needs in standards for cementitious materials, Cement and Concrete Research, Volume 78, 165-177.

Bernal Camacho, J., Mahmoud Abdelkader, S., Reyes Pozo, E., Moragues Terrades, M. 2013. The influence of sulfuric environments on concretes elaborated with sulfate resistant cements and mineral admixtures. part 1: Concrete exposed to sodium sulfate (N2SO4), Revista de la Construccion, Volume 12, Issue 2, 14-29.

Bernal Camacho, J., Mahmoud Abdelkader, S., Reyes Pozo, E., Monteagudo Viera, S. 2013. The influence of sulfuric environments on concretes elaborated with sulfate resistant cements and mineral admixtures. Part 2: Concrete exposed to Magnesium Sulfate (MgSO4), Revista de la Construccion, Volume 12, Issue 3, 36-46.

Kreyszig E. 2011. Advanced Engineering Mathematics, John Wiley and sons, 10th edition.

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Published

2016-12-31

How to Cite

Ondrejka Harbuľáková, V., Eštoková, A. and Kovalčíková, M. (2016) “STUDY OF CONCRETE SAMPLES WITH VARIOUS CONTENTS OF SLAG UNDER SULPHATES ATTACK USING MATHEMATICAL APPROACH”, Czech Journal of Civil Engineering, 2(2), pp. 116-119. doi: 10.51704/cjce.2016.vol2.iss2.pp116-119.

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