Influence of Plasticizers on Properties of Anhydrite Binder

Abstract:

This paper deals with the development and research of sulphate binder based on anhydrite for the industrial production of dry mortar self-leveling mixtures. As part of the experimental activity, selected plasticizers for the sulphate binders were tested. These additives were added in various weight ranges. The tests were carried out first on anhydrite pastes and then on anhydrite mortars of standard composition. Their influence was mainly observed on the achieved basic technological properties, such as the consistency, the initial setting time and the achieved strength.

• Periodical: Key Engineering Materials (Volume 760)
• Pages: 16-21
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.760.16
• Online since: January 2018
• Authors: Dominik Gazdič*, Jana Mokrá, Jan Hanáček
• Keywords: Anhydrite, Plasticizer, Sulphate Binder

References

[1] BÁRTA, R., Technology of silicates (Proceedings of the research works III), SNTL, Praha (in czech).

[2] SCHULZE, W., TISCHER, W., LACH, V., ETTEL, P., Non-cement mortars and concretes, SNTL, Praha, 1990 (in czech).

[3] VAVŘÍN, F., Binders. 3. ed., BUT Brno, 1987, 253 p.

[4] GAZDIČ, D.; NOVÁK, J. Effect of admixtures on the properties of binder based on natural anhydrite. In Matbud´ 2007. 1. Cracow, Poland: Institute of building materials and structures, 2007. s. 146-152. ISBN: 978-83-7242-429- 7.

[5] ČSN EN 13813 Screed material and floor screeds - Screed material - Properties and requirements.

DOI: 10.3403/02690071u

[6] EN 13454-1 Binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate – Part 1: Definitions and requirements.

DOI: 10.3403/03163984

[7] EN 13454-2+A1 Binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate – Part 2: Test methods.

DOI: 10.3403/03011796u

[8] EN 13892-1 Methods of test for screed materials - Part 1: Sampling, making and curing specimens for test.

DOI: 10.3403/02703005