Ceramics-Silikáty 37, (2) 61 - 65 (1993) |
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ALKALI ACTIVATION OF GRANULATED BLAST FURNACE SLAGS
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Tomková Václava 1, Sahu Sadananda 1, Majling Ján 1,
Tomko Miroslav 2
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1 Department of Ceramics, Glass and Cement, Faculty of Chemical Technology, Slovak Technical University, Radlinského 9, 812 97 Bratislava
2 Research and Development Institute of Prefabrication, St. Vajnorská cesta 16, 892 44 Bratislava
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Granulated blast furnace slags from VSŽ Košice was activated by using different alkalies such as NaOH, Na₂CO₃ and water glass. The influence of the slag fineness, curing conditions of the moulded specimens and the content of alkalies and silica module of water glass have been studied. Results show that curing conditions have great effect on the strength development. Slag activated in the presence of water glass had excelent mechanical properties, 28 days compressive strength up to 120 MPa was obtained. |
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