A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ceramic tiles with very low density developed by recycling glaze waste
The ceramic industry generates large quantities of waste, which is usually deposited in landfills. On the other hand, waste recovery and recycling are very attractive from the standpoint of economic and environmental solutions, this being a reality today in ceramic industries. Therefore, this paper addresses the reuse of glaze waste derived from an effluent treatment plant in the development of ceramic tiles for façades with low density. The glaze waste was characterized (XRF) and silicon carbide (0.05 wt%) was added to the glaze waste as bubbling agent and CMC (10 wt%) was added to the mixture as a binder. The mixture was granulated (7 wt% water) and compacted by double loading using a standard stoneware body as substrate according to a 2k full factorial experimental design (DoE). The amount of stoneware body in relation to the waste in the double loading and the compaction pressure were the factors. After drying, the compacts were fired in a roller kiln to 1180 °C in 44 min cycle. The fired samples were characterized for the determination of the thermal expansion, modulus of flexural strength, water absorption and apparent density. The results clearly showed the effect of the double loading on these properties, and it was possible to obtain tiles with very low density (0.8 g/cm3) and a cellular structure.
Ceramic tiles with very low density developed by recycling glaze waste
The ceramic industry generates large quantities of waste, which is usually deposited in landfills. On the other hand, waste recovery and recycling are very attractive from the standpoint of economic and environmental solutions, this being a reality today in ceramic industries. Therefore, this paper addresses the reuse of glaze waste derived from an effluent treatment plant in the development of ceramic tiles for façades with low density. The glaze waste was characterized (XRF) and silicon carbide (0.05 wt%) was added to the glaze waste as bubbling agent and CMC (10 wt%) was added to the mixture as a binder. The mixture was granulated (7 wt% water) and compacted by double loading using a standard stoneware body as substrate according to a 2k full factorial experimental design (DoE). The amount of stoneware body in relation to the waste in the double loading and the compaction pressure were the factors. After drying, the compacts were fired in a roller kiln to 1180 °C in 44 min cycle. The fired samples were characterized for the determination of the thermal expansion, modulus of flexural strength, water absorption and apparent density. The results clearly showed the effect of the double loading on these properties, and it was possible to obtain tiles with very low density (0.8 g/cm3) and a cellular structure.
Ceramic tiles with very low density developed by recycling glaze waste
Nesi, Giovani (author) / Bernardin, Adriano Michael (author)
2014
12 Seiten, Bilder, Tabellen, 15 Quellen
Conference paper
Storage medium
English
Bright metal cover glaze and application thereof in ceramic tiles
| European Patent Office | 2021
High-solar-reflectance building ceramic tiles based on titanite (CaTiSiO5) glaze
| British Library Online Contents | 2017
High-solar-reflectance building ceramic tiles based on titanite (CaTiSiO5) glaze
| British Library Online Contents | 2017