The Effect of Modified Hydrotalcites on Mechanical Properties and Chloride Penetration Resistance in Cement Mortar

Abstract:

In this paper, two types of modified hydrotalcites (MHT) were incorporated into cement mortars with two dosage levels (replacing 5% and 10% cement by mass). Designated testing programme including strength test, porosity test, and rapid chloride migration and diffusion test were employed to investigate the effect of modified hydrotalcites on chloride penetration in cement mortar. The results based on these tests showed the incorporation of MHT-pAB at 5% dosage in mortar specimens produced a notably improved chloride diffusion resistance with no or minor influence on the development of mechanical strength.

• Periodical: Key Engineering Materials (Volumes 629-630)
• Pages: 156-161
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.629-630.156
• Online since: October 2014
• Authors: Zheng Xian Yang*, Hartmut Fischer, Rob Polder
• Keywords: Chloride Penetration, Corrosion, Modified Hydrotalcites, Reinforced Concrete

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