THE INFLUENCE OF THE USE OF RECYCLED GYPSUM ON THE PROPERTIES OF GYPSUM PRODUCTS IN LABOR CONDITIONS

Authors

  • Hana Sekavová Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech Republic KNAUF Praha spol. s r.o., Mladoboleslavská 949, 197 00 Prague 9, Czech Republic
  • Jakub Herrmann Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech Republic
  • Zdeněk Prošek Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech Republic
  • Miroslav Nyč KNAUF Praha spol. s r.o., Mladoboleslavská 949, 197 00 Prague 9, Czech Republic
  • George Karra’a LAVARIS s.r.o., Areál Šroubáren 43, 252 66 Libcice nad Vltavou, Czech Republic

DOI:

https://doi.org/10.14311/APP.2020.26.0081

Keywords:

FGD gypsum, stucco, recyclation

Abstract

The article presents the first results from research, which is deal with recycling of plaster boards and use of the resulting material. The research is carried out within the project MPO Trio c. FV30359 “Recyklace sádrokartonových desek a nová materiálová využití s pridanou hodnotou – GIPSRec”. The plasterboards are produced of stucco, which is calcinated of Flue Gas Desulfurization Gypsum (FGD Gypsum). There is possibility to replace a part of this stucco with recycled material. There is opportunity for saving costs for production. The question how this utilization can change the properties of the products is very important and it is necessary to find the possible improvement or deterioration. This is the objective of this research. The effect on properties was monitored on the samples which was prepared of only pure stucco and of stucco with part of recycled material. There was observed water ratio (splash test), setting times, volume changes, flexural strength, compressive strength and elasticity module.

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Published

2020-03-17

Issue

Vol. 26 (2020): NMM 2019 Nano & Macro Mechanics

Section

Articles

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