Fluoroanhydrite compositions plasticized by polycarboxylate esters
The influence of a plasticizer based on polycarboxylate esters on the properties of a high-strength fluoroanhydrite composition and a lightweight composition with expanded perlite sand is investigated. It was shown that the addition of 2% polycarboxylate esters on water base to compositions has increased compressive strength and a flexural strength up to 46% and 20% respectively compare to composite without any additives. Due to the structure’s compaction of the compositions, water absorption decreased and the water resistance of the material increased. Microstructural analysis of the compositions confirmed the improvement of physical and mechanical characteristics by changing the morphology of crystallohydrate formations, increasing the contact area between new formations and modifying the structure by carbon nanotubes. The developed mixtures are supposed to be apply for self-leveling fluid mixtures for floors with reduced thermal conductivity.
First published online 10 February 2020
This work is licensed under a Creative Commons Attribution 4.0 International License.
Fedorchuk, Yu. M. (2013). Development of methods for involving sulfalcalcium waste of hydrogen production in the turn of the industrial use. Mezhdunarodnyi zhurnal prikladnykh i fundamental’nykh issledovanii, 11(2), 151–155. https://applied-research.ru/ru/article/view?id=4476
Goncharov, Yu. А., et al. (2016). Gypsum materials and products of a new generation. Energy efficiency rating. Colorgrad, Minsk (in Russian).
GOST 10832-2009. (2009). Pesok i shheben’ perlitovye vspuchennye. Tehnicheskie uslovija [Expanded perlite sand and crushed stone. Technical specifications]. (GOST 10832-2009). Standartinform, Moskva. (in Russian).
Guan, B. H., Ye, Q. Q., Zhang, J. L., Lou, W. B., & Wu, Z. B. (2010). Interaction between alphacalcium sulfate hemihydrate and superplasticizer from the point of adsorption characteristics, hydration and hardening process. Cement and Concrete Research, 40(2), 253–259. https://doi.org/10.1016/j.cemconres.2009.08.027
Hampel, C., Zimmermann, J., & Müller, M. (2013). Optimisation of plasticizers for g ypsum applications. ZKG International, 66(2), 56–61.
Martin, D. (2015). Plasticizer composition for producing gypsum boards (EP3176141A1). European Patent Office.
Müller, M., & Hampel, C. (2018). Multi-functional polymers for increased gypsum board production efficiency. 20th International Building Materials Conference “Ibausil”, 2, 96–104.
Neuville, M., Bossis, G., Persello, J., Volkova, O., Boustingory P., & Mosquet, M. (2012). Rheology of a gypsum suspension in the presence of different superplasticizers. Journal of Rheology, 56(2), 435–451. https://doi.org/10.1122/1.3693272
Pan, W., & Wang, P. (2011). Effect of compounding of sodium tripolyphosphate and super plasticizers on the hydration of α-calcium sulfate hemihydrate. Journal of Wuhan University of Technology-Mater. Sci. Ed., 26(4), 737–744. https://doi.org/10.1007/s11595-011-0303-4
Pureskina, O. A., Gashkova, V. I., Petrov, N. S., & Katishev, S. F. (2010). The method of obtaining anhydrite binder (Patent RU 2382743). Ural’skij gosudarstvennyj tekhnicheskij universitetUPI imeni pervogo Prezidenta Rossii B.N. El’tsina (in Russian).
Sakthieswaran, N., & Sophia, M. (2018). Effect of superplasticizers on the properties of latex modified gypsum plaster. Construction and Building Materials, 179, 675–691. https://doi.org/10.1016/j.conbuildmat.2018.05.150
Tan, H., Deng, X., Gu, B., Ma, B., Luo, S., Zhi, Z., Guo, Y., & Zou, F. (2018). Effect of borax and sodium tripolyphosphate on fluidity of gypsum paste plasticized by polycarboxylate superplasticizer. Construction and Building Materials, 176, 394–402. https://doi.org/10.1016/j.conbuildmat.2018.05.005
TS 5744-132-05807960-98. (1998). Fluoroanhydrite (TS 5744132-05807960-98). Technical specifications (in Russian).
TS 2493-001-68708012-2014. (2014). Superplasticizer DC-5 (TS 2493-001-68708012-2014). Technical specifications. Kazan (in Russian).
Wang, Q., & Jia, R. (2019). A novel gypsum-based self-leveling mortar produced by phosphorus building gypsum. Construction and Building Materials, 226, 11–20. https://doi.org/10.1016/j.conbuildmat.2019.07.289
Yakovlev, G. I., Pervushin, G. N., Grakhov, V. P., Kalabina, D. А., Gordina, A. F., Ginchitskaya, Y. N., Bazhenov, К. А., Troshkova, V. V., Drokhitka, R. V., & Khozin, G. (2019a). Constructional and thermal insulation material based on high-strength anhydrite binder. Intellektual’nye sistemy v proizvodstve, 17(1), 144–151. (in Russian). https://doi.org/10.22213/2410-9304-2019-1-144-151
Yakovlev, G., Drochytka, R., Pervushin, G., Grahov, V., Kalabina, D., Gordina, A., & Ginchitskaya, J. (2019b). Structural and thermal insulation materials based on high-strength anhydrite binder. IOP Conf. Series: Materials Science and Engineering, 603, 032071.
Yakovlev, G. I., Tulegenova, A. V., Pervushin, G. N., Keriene, J., Gordina, A. F., Bazhenov, K. A., & Elrefaei, A. E. (2018). Multifunctional admixture used for activating fluoroanhydrite. 20th International Building Materials Conference “Ibausil”, 2, 559–568.