Customising Microstructural and Mineralogical Characteristics of Hydrated Lime Using Biopolymers

Abstract:

The study of lime-based systems is vital to the design of new sustainable building materials. Air lime (calcium hydroxide, Ca (OH)₂) is a binder that has attracted considerable attention for its ability to capture CO₂ from the atmosphere, its low-cost and low-energy production process. Furthermore, Ca (OH)₂ is an important phase of hydrated Portland cements, and lime-based mortars have shown high elasticity and the ability of self-healing. The performance of lime-based building materials can be enhanced by the addition of organic compounds that can modify the mineralogy and microstructure of Ca (OH)₂. In this study, the effects of four biopolymers including starch, inulin, pectin, and calcium lignosulfonate, on the microstructure and mineralogy of lime have been investigated. Hydrated lime was produced by slaking quicklime in water. Two sets of hydrated lime batches were produced for each polymer: (i) the polymer was previously dissolved in water and subsequently mixed with lime, and (ii) the polymer was added as a dry powder to the already hydrated lime at the end of the slaking process. Characterisation of the batches was performed using scanning electron microscopy, X-ray diffraction and laser diffraction. Results indicate that biopolymers affect the nucleation and growth of Ca (OH)₂ crystals. This influences the microstructure and crystal aggregation of hydrated lime in colloidal suspension, which will have important implications on the use of biopolymers in Portland cement applications and in the use of lime as a binder for mortars.

• Periodical: Construction Technologies and Architecture (Volume 1)
• Pages: 353-360
• DOI: https://doi.org/10.4028/www.scientific.net/CTA.1.353
• Online since: January 2022
• Authors: Cecilia Pesce*, Giovanni Pesce, Marco Molinari, Alan Richardson
• Keywords: Biopolymers, Inulin, Lignosulfonate, Lime, Organic Additives, Pectin, Starch

References

[1] Auvinen, J., Wirtanen, L., 2008. The influence of photocatalytic interior paints on indoor air quality. Atmos. Environ. 42, 4101–4112. https://doi.org/10.1016/j.atmosenv.2008.01.031.

DOI: 10.1016/j.atmosenv.2008.01.031

[2] Ball, R.J., Molinari, M., Grant, J., Parker, S.C., 2016. Atomistic Modelling for the Study of Dissolution and Carbonation of Lime, in: 36th Cement and Concrete Science Conference. Cardiff, UK.

[3] Boynton, R.S., 1980. Chemistry and Technology of Lime and Limestone. John Wiley & Sons, Inc., New York.

[4] BS EN 459-1, 2015. Building lime. Definitions, specifications and conformity criteria.

[5] Cizer, Ö., Ruiz-Agudo, E., Rodriguez-Navarro, C., 2018. Kinetic effect of carbonic anhydrase enzyme on the carbonation reaction of lime mortar. Int. J. Archit. Herit. 12, 779–789. https://doi.org/10.1080/15583058.2017.1413604.

DOI: 10.1080/15583058.2017.1413604

[6] Donmez, D., Pinho, L., Patel, B., Desam, P., Campanella, O.H., 2021. Characterization of starch–water interactions and their effects on two key functional properties: starch gelatinization and retrogradation. Curr. Opin. Food Sci. 39, 103–109. https://doi.org/10.1016/j.cofs.2020.12.018.

DOI: 10.1016/j.cofs.2020.12.018

[7] Elert, K., Rodriguez-Navarro, C., Pardo, E.S., Hansen, E., Cazalla, O., 2002. Lime mortars for the conservation of historic buildings. Stud. Conserv. 47, 62–75. https://doi.org/10.1179/sic.2002.47.1.62.

DOI: 10.1179/sic.2002.47.1.62

[8] Flatt, R., Schober, I., 2012. Superplasticizers and the rheology of concrete, in: Roussel, N. (Ed.), Understanding the Rheology of Concrete. Woodhead Publishing, p.144–208.

DOI: 10.1533/9780857095282.2.144

[9] Guizani, C.; Lachenal, D., 2017. Controlling the Molecular Weight of Lignosulfonates by an Alkaline Oxidative Treatment at Moderate Temperatures and Atmospheric Pressure: A Size-Exclusion and Reverse-Phase Chromatography Study. Int. J. Mol. Sci. 18, 2520. https://doi.org/https://doi.org/10.3390/ijms18122520.

DOI: 10.3390/ijms18122520

[10] ISO, 2009. ISO13320 Particle Size Analysis - Laser Diffraction Methods, Part 1: General Principles.

[11] Janković, B., 2013. Thermal characterization and detailed kinetic analysis of Cassava starch thermo-oxidative degradation. Carbohydr. Polym. 95, 621–629. https://doi.org/10.1016/ j.carbpol.2013.03.038.

DOI: 10.1016/j.carbpol.2013.03.038

[12] Luis Fernández-Muñoz, J., Zelaya-Angel, O., Cruz-Orea, A., Sánchez-Sinencio, F., 2001. Phase Transitions in Amylose and Amylopectin under the Influence of Ca(OH)2 in Aqueous Solution. Anal. Sci. 17 Special, s308–s341. https://doi.org/ http://doi.org/10.14891/analscisp. 17icpp.0.s338.0.

[13] Mascolo, G., Mascolo, M.C., Vitale, A., Marino, O., 2010. Microstructure evolution of lime putty upon aging. J. Cryst. Growth 312, 2363–2368. https://doi.org/10.1016/j.jcrysgro.2010.05.020.

DOI: 10.1016/j.jcrysgro.2010.05.020

[14] Navrátilová, E., Tihlaříková, E., Neděla, V., Rovnaníková, P., Pavlík, J., 2017. Effect of the preparation of lime putties on their properties. Sci. Rep. 7, 1–9. https://doi.org/10.1038/s41598-017-17527-3.

DOI: 10.1038/s41598-017-17527-3

[15] Pesce, C., Pesce, G.L., Molinari, M., Richardson, A., 2021. Effects of organic additives on calcium hydroxide crystallisation during lime slaking. Cem. Concr. Res. 139. https://doi.org/10.1016/j.cemconres.2020.106254.

DOI: 10.1016/j.cemconres.2020.106254

[16] Rodriguez-navarro, C., Burgos-cara, A., Lorenzo, F. Di, Ruiz-agudo, E., Elert, K., 2020. Nonclassical Crystallization of Calcium Hydroxide via Amorphous Precursors and the Role of Additives. Cryst. Growth Des. https://doi.org/10.1021/acs.cgd.0c00241.

DOI: 10.1021/acs.cgd.0c00241

[17] Rodriguez-Navarro, C., Hansen, E., Ginell, W.S., 1998. Calcium Hydroxide Crystal Evolution upon Aging of Lime Putty. J. Am. Ceram. Soc. 81, 3032–3034. https://doi.org/10.1111/j.1151-2916.1998.tb02735.x.

DOI: 10.1111/j.1151-2916.1998.tb02735.x

[18] Rodriguez-Navarro, C., Ruiz-Agudo, E., Burgos-Cara, A., Elert, K., Hansen, E.F., 2017. Crystallization and Colloidal Stabilization of Ca(OH)2 in the Presence of Nopal Juice (Opuntia ficus indica): Implications in Architectural Heritage Conservation. Langmuir 33, 10936–10950. https://doi.org/10.1021/acs.langmuir.7b02423.

DOI: 10.1021/acs.langmuir.7b02423

[19] Stawski, D., 2008. New determination method of amylose content in potato starch. Food Chem. 110, 777–781. https://doi.org/10.1016/j.foodchem.2008.03.009.

DOI: 10.1016/j.foodchem.2008.03.009

[20] Thirumalini, S., Ravi, R., Rajesh, M., 2018. Experimental investigation on physical and mechanical properties of lime mortar: Effect of organic addition. J. Cult. Herit. 31, 97–104. https://doi.org/10.1016/j.culher.2017.10.009.

DOI: 10.1016/j.culher.2017.10.009

[21] Ukrainczyk, M., Gredičak, M., Jerić, I., Kralj, D., 2014. Interactions of scalenohedral calcite crystals with acidic amino acid derivatives of salicylic acid. Cryst. Growth Des. 14, 4335–4346. https://doi.org/10.1021/cg500396x.

DOI: 10.1021/cg500396x

[22] Yang, Fuwei, Bingjian Zhang, Q.M., 2010. Study of Sticky Rice - Lime Mortar Technology. Acc. Chem. Res. 43.