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Effect of epoxy resin on the intrinsic properties of masonry mortars

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Abstract

The paper presents an assessment on the properties of three different types of masonry mortars, namely Portland cement mortar (CM), polymer cement mortar (PCM) and polymer mortar (PM) of various compositions. The effect of binder content (cement and/or epoxy) on CM, PCM or PM has been explored in the study. An assessment was carried out on the basis of mechanical (compressive, tensile and flexural strength), physical (water uptake, chloride ion permeability), morphological (porosity) and thermal (coefficient of thermal expansion) properties of the mortars. A comparative cost analysis of the mortars is also discussed in this article. The results show that the mechanical strength of both PCM and PM improves markedly with the addition of epoxy resin, and the higher rate of incremental strength is found for PM. Consequently, the chloride ion penetration, water uptake, porosity and thermal expansion of the mortars decrease significantly with the resin content, but the rate of drop in chloride ion penetration, water uptake, porosity and thermal expansion is much higher for PM. The test results indicate that the variation of binder content (epoxy/cement) is found to be the key factor determining the mortar properties and cost.

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Acknowledgments

The authors express their deep gratitude to Mr. Mainuddin Ahmed, the Director of HBRI for his inspiration, moral and administrative support to conduct the experimental work in the Laboratory of HBRI.

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Correspondence to M. Mostafizur Rahman.

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Rahman, M.M., Islam, M.A. Effect of epoxy resin on the intrinsic properties of masonry mortars. Iran Polym J 21, 621–629 (2012). https://doi.org/10.1007/s13726-012-0065-7

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  • DOI: https://doi.org/10.1007/s13726-012-0065-7

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