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Polysialates binders preparation and their influence to shear strength of foundry sand mixtures

Wybrane pełne teksty z tego czasopisma
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Języki publikacji
EN
Abstrakty
EN
This paper deals with polysialates water-glasses preparation. There were used various procedures with the goal to create inorganic polymer on silicon and aluminum base. The one composed of SiO2 and AlO4 tetrahedron chains. For the preparation was concentrated NaOH solution used together with metakaolinite in a way low-temperature synthesis in the presence of alkaline silicate: higher pressure and temperature (autoclave) to direct making of alkaline silicate made of sand, NaOH with metakaolinite addition and by melting fritted glass together with metakaolinite and dissolution in autoclave. The dissolving effectivity was evaluated by the concentration of aluminum in alkaline silicate and by the influence to reduce strengths after heat exposition with this inorganic binder.
Rocznik
Strony
37--40
Opis fizyczny
Bibliogr. 2 poz., rys., tab.
Twórcy
autor
autor
  • Department of Foundry, VŠB--echnical University of Ostrava, 17. listopadu 15/2172, Ostrava-Poruba, 708 33, Česká republika, rene.fridrich@centrum.cz
Bibliografia
  • [1] F. Škvára, Alkali activated material - geopolymer; Alkali acticated materials - research, production and utilization, proceedings of international conference, Prague 2007, p. 661-676, ISBN 978-80-86742-18-2.
  • [2] R. Fridrich, Polysialates as alternative binder of foundry sand mixtures. In 4th International PhD Foundry Conference. Brno 2007. ISBN 978-80-214-3496-7.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ4-0018-0008
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