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Mechanical Properties of Hybrid Cement Based Mortars Containing Two Biopolymers

Authors: Z. Abdollahnejad, M. Kheradmand, F. Pacheco-Torgal

Abstract:

The use of bio-based admixtures on construction materials is a recent trend that is gaining momentum. However, to our knowledge, no studies have been reported concerning the use of biopolymers on hybrid cement based mortars. This paper reports experimental results regarding the study of the influence of mix design of 43 hybrid cement mortars containing two different biopolymers on its mechanical performance. The results show that the use of the biopolymer carrageenan is much more effective than the biopolymer xanthan concerning the increase in compressive strength. An optimum biopolymer content was found.

Keywords: Waste reuse, fly ash, waste glass, hybrid cement, biopolymers, mechanical strength.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1132112

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References:


[1] COM (2011) 571, “Roadmap to a Resource Efficient Europe, European Commission, Brussels, 2011.
[2] COM (2014) 398 final, “Towards a circular economy: A zero waste programme for Europe,” Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Brussels, 2014.
[3] J. Van Deventer, J. Provis, P. Duxson, D. Brice, “Chemical Research and Climate Change as Drivers in the Commercial Adoption of Alkali Activated Materials,” Waste Biomass Valor vol. 1:pp.145–155, 2010.
[4] J. Provis, “Geopolymers and other alkali activated materials: why, how, and what?” Materials and Structures vol. 47, pp.11-25, 2014.
[5] J. Provis, Y. Muntingh, R. Lloyd, H. Xu, L. Keyte, L. Lorenzen, P. Krivenko and J. Van Deventer, “Will geopolymers stand the test of time?”, Ceramic Engineering and Science Proceedings Vol.28, pp.235-248, 2008.
[6] F. Pacheco-Torgal, Z. Abdollahnejad, A. Camões, M. Jamshidi and Y. Ding,” Durability of alkali-activated binders. A clear advantage over Portland cement or an unproven issue?”, Construction and Building Materials Vol.30, pp.400-405, 2012.
[7] F. Pacheco-Torgal, Z. Abdollahnejad, S.Miraldo, S. Kheradmand, “Alkali-activated cement-based binders (AACB) as durable and cost competitive low CO2 binders: Some shortcomings that need to be addressed,” in Handbook of low carbon concrete, 1st A. Nazari, J. Sanjayan, , Elsevier Science and Tech, Waltham, 2016, pp.195-216.
[8] S. Alonso, A. Palomo, “Calorimetric study of alkaline activation of calcium hydroxide-metakaolin solid mixtures,” Cement and Concrete Research, vol.31, p.25-30, 2001.
[9] S. Alonso, A. Palomo, “Alkaline activation of metakaolin and calcium hydroxide mixtures: influence of temperature, activator concentration and solids ratio,” Materials Letters, vol.47, p.55-62, 2001.