Modulating Water Absorption of Hardened Gypsum Plaster with Enhanced Mechanical Strengths by Molecular Modification of Polyvinyl Alcohol
Publication: Journal of Materials in Civil Engineering
Volume 31, Issue 11
Abstract
In general, polymers that enhance the mechanical strength of gypsum plaster simultaneously decrease its water absorption capability. In this research, starting from polyvinyl acetate (PVAc) and polyvinyl alcohol (PVA), respectively, two groups of PVA-derived polymers were, partially hydrolyzed polyvinyl acetates (PHPVAs) and polyvinyl alcohol sulfates (PVAS). The modulation of mechanical strength and water absorption of gypsum plaster with PHPVA and PVAS was studied. Their structure–property relationship was investigated. Except for morphology, the influence of product structure on the mechanical properties of the hardened gypsum plaster was studied, including mechanical strengths, dynamic water absorption, hydration degree, and hydration temperature. The mechanical strength initially increased with increasing hydrolysis or sulfonation degree but eventually decreased. The water absorption capability was proportional to the hydrolysis degree but was not significantly related to sulfonation degree. PVAS are the optimum candidate for modeling material, whereas PHPVA is optimal for construction materials. By molecular modification of PVA, highly enhanced mechanical strength can be realized with modulatable water absorption of the hardened gypsum plaster.
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Acknowledgments
Financial support from the Key Project of the National 12th Five Year Research Program of China (2011BAE30B02 and 2014BAE03B00) is acknowledged.
References
Akhlaghi, O., T. Aytas, B. Tatli, D. Sezer, A. Hodaei, A. Favier, K. Scrivener, Y. Z. Menceloglu, and O. Akbulut. 2017. “Modified poly(carboxylate ether)-based superplasticizer for enhanced flowability of calcined clay-limestone-gypsum blended portland cement.” Cem. Concr. Res. 101: 114–122. https://doi.org/10.1016/j.cemconres.2017.08.028.
Bessaies-Bey, H., R. Baumann, M. Schmitz, M. Radler, and N. Roussel. 2016. “Organic admixtures and cement particles: Competitive adsorption and its macroscopic rheological consequences.” Cem. Concr. Res. 80: 1–9. https://doi.org/10.1016/j.cemconres.2015.10.010.
Borhan, S., S. Hesaraki, and S. Ahmadzadeh-Asl. 2010. “Evaluation of colloidal silica suspension as efficient additive for improving physicochemical and in vitro biological properties of calcium sulfate-based nanocomposite bone cement.” J. Mater. Sci. - Mater. Med. 21 (12): 3171–3181. https://doi.org/10.1007/s10856-010-4168-4.
Chinese Standard. 1999. Gypsum plasters-determination of physical properties of pure paste. GB/T 17669.4. Beijing: Chinese Standard.
Heim, D., A. Mrowiec, K. Pralat, and M. Mucha. 2018. “Influence of Tylose MH1000 content on gypsum thermal conductivity.” J. Mater. Civ. Eng. 30 (3): 04018002. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002177.
Holanda, F. D., H. Schmidt, and V. A. Quarcioni. 2017. “Influence of phosphorus from phosphogypsum on the initial hydration of portland cement in the presence of superplasticizers.” Cem. Concr. Compos. 83: 384–393. https://doi.org/10.1016/j.cemconcomp.2017.07.029.
Jiang, L. F., X. M. Kong, Z. C. Lu, and S. S. Hou. 2015. “Preparation of amphoteric polycarboxylate superplasticizers and their performances in cementitious system.” J. Appl. Polym. Sci. 132 (4): 41348. https://doi.org/10.1002/app.41348.
Kryuchkov, Y. N., and T. L. Neklyudova. 2015. “Structure of gypsum and polymer molds for slip casting.” Glass Ceram. 71 (9–10): 324–326. https://doi.org/10.1007/s10717-015-9679-5.
Liu, J. S., K. Liu, J. Zhang, and J. X. Li. 2016. “Properties of polymer-modified mortar using silane as an integral additive.” J. Test. Eval. 44 (1): 175–182.
Lopez, F. A., M. Gazquez, F. J. Alguacil, J. P. Bolivar, I. Garcia-Diaz, and I. Lopez-Coto. 2011. “Microencapsulation of phosphogypsum into a sulfur polymer matrix: Physico-chemical and radiological characterization.” J. Hazard. Mater. 192 (1): 234–245. https://doi.org/10.1016/j.jhazmat.2011.05.010.
Moon, J., P. D. Kalb, L. Milian, and P. A. Northrup. 2016. “Characterization of a sustainable sulfur polymer concrete using activated fillers.” Cem. Concr. Compos. 67: 20–29. https://doi.org/10.1016/j.cemconcomp.2015.12.002.
Mrad, O., O. Alhassanieh, and Z. Ajji. 2015. “Europium, strontium and cesium migration from the composite of poly(methyl acrylate) gypsum prepared by gamma irradiation.” J. Radioanal. Nucl. Chem. 304 (2): 661–667. https://doi.org/10.1007/s10967-014-3847-x.
Nguyen, D. D., L. P. Devlin, P. Koshy, and C. C. Sorrell. 2016. “Effects of acetic acid on early hydration of Portland cement.” J. Therm. Anal. Calorim. 123 (1): 489–499. https://doi.org/10.1007/s10973-015-4942-0.
Nilles, V., and J. Plank. 2012. “Study of the retarding mechanism of linear sodium polyphosphates on alpha-calcium sulfate hemihydrate.” Cem. Concr. Res. 42 (5): 736–744. https://doi.org/10.1016/j.cemconres.2012.02.008.
Wu, H. C., Y. M. Xia, X. Y. Hu, and X. Liu. 2014. “Improvement on mechanical strength and water absorption of gypsum modeling material with synthetic polymers.” Ceram. Int. 40 (9): 14899–14906. https://doi.org/10.1016/j.ceramint.2014.06.085.
Zelmer, C., D. K. Wang, I. Keen, D. J. T. Hill, A. L. Symons, L. J. Walsh, and F. Rasoul. 2016. “Synthesis and characterization of star copolymers and GICs for dental applications.” Dent. Mater. 32 (4): E82–E92. https://doi.org/10.1016/j.dental.2016.01.011.
Zhang, J., Y.-J. Liu, H.-S. Park, Y.-M. Xia, and G.-S. Kim. 2012. “Antitumor activity of sulfated extracellular polysaccharides of Ganoderma lucidum from the submerged fermentation broth.” Carbohydr. Polym. 87 (2): 1539–1544. https://doi.org/10.1016/j.carbpol.2011.09.051.
Zhao, H., G. H. Hu, G. B. Ye, X. M. Ren, Q. C. Zhang, and T. Jiang. 2018. “Effects of superplasticisers on hydration process, structure and properties of alpha-hemihydrate calcium sulfate.” Adv. Cem. Res. 30 (1): 37–44. https://doi.org/10.1680/jadcr.17.00059.
Zhi, Z. Z., J. Huang, Y. F. Guo, S. W. Lu, and B. G. Ma. 2017. “Effect of chemical admixtures on setting time, fluidity and mechanical properties of phosphorus gypsum based self-leveling mortar.” KSCE J. Civ. Eng. 21 (5): 1836–1843. https://doi.org/10.1007/s12205-016-0849-y.
Zhou, J., C. Liu, Z. Shu, D. X. Yu, Q. Y. Zhang, T. T. Li, and Q. Xue. 2015. “Preparation of specific gypsum with advanced hardness and bending strength by a novel in-situ loading-hydration process.” Cem. Concr. Res. 67: 179–183. https://doi.org/10.1016/j.cemconres.2014.09.004.
Zhou, P. P., H. C. Wu, and Y. M. Xia. 2016. “Influence of synthetic polymers on the mechanical properties of hardened beta-calcium sulfate hemihydrate plasters.” J. Ind. Eng. Chem. 33: 355–361. https://doi.org/10.1016/j.jiec.2015.10.024.
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©2019 American Society of Civil Engineers.
History
Received: Sep 7, 2018
Accepted: May 29, 2019
Published online: Aug 29, 2019
Published in print: Nov 1, 2019
Discussion open until: Jan 29, 2020
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