Abstract
In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were incorporated into cement mortars with two dosage levels (replacing 5 and 10 % cement) and a constant water-to-(cement + MHT) ratio of 0.50. Designated testing programme including strength test, porosity test, and rapid chloride migration were employed to investigate the effect of modified hydrotalcites on chloride penetration in cement mortar. The results based on these tests revealed that the incorporation of MHT-pAB at 5 % dosage in mortar specimens produced a notably improved resistance to chloride ingress with no or minor influence on the development of mechanical strength, which further confirmed the possibilities for using modified hydrotalcite as a chloride scavenger in cement mortars.
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Acknowledgements
The research was carried out under the project number M81.609337 in the framework of the Research Program of the Materials innovation institute (M2i) (www.m2i.nl). Sasol Germany GmbH is acknowledged for the gift of hydrotalcite that was used in this research.
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Yang, Z., Fischer, H., Polder, R. (2015). Effect on Mechanical Properties and Chloride Penetration Resistance of Modified Hydrotalcite in Cement Mortar. In: Andrade, C., Gulikers, J., Polder, R. (eds) Durability of Reinforced Concrete from Composition to Protection. Springer, Cham. https://doi.org/10.1007/978-3-319-09921-7_11
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DOI: https://doi.org/10.1007/978-3-319-09921-7_11
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