Assessment of corrosion resistance of glass ceramics-containing industrial waste | Rūpnieciskos atkritumus saturošu stiklkeramisku materiālu korozijas izturības novērtēšana
2009
Rozenstrauha, I., Riga Technical Univ. (Latvia) | Lodins, E., Riga Technical Univ. (Latvia) | Lorencs, A., Riga Technical Univ. (Latvia) | Freidenfelds, R., Riga Technical Univ. (Latvia) | Drille, M., Riga Technical Univ. (Latvia) | Krage, L., Riga Technical Univ. (Latvia) | Bajare, D., Riga Technical Univ. (Latvia) | Pastare, I., University of Latvia, Riga (Latvia) | Gomez, E., Imperial College London (United Kingdom) | Boccaccini, A.R., Imperial College London (United Kingdom)
Dense composite materials (bulk density 2.3-2.9 g/cm**3, water absorption 0.15-0.6%), corresponding to Latvian standard LVS EN 176 group BI, have been manufactured using powder technology and thermal treatment. The starting materials were: local inorganic industrial waste - steel cooling refuse, etching refuse and aluminium-containing waste, alkali glass and clay from Liepa deposit. Three methods have been applied in order to investigate the chemical durability of obtained materials. Essential changes of sample weight were detected after immersion in the HNO3 solution (pH~2). The test for water-soluble salts (LVS EN 12370) was applied in order to characterize the composite materials. Weight loss was observed after 10th cycle. Obtained results show that composite materials correspond to requirements of building ceramics.
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