RB 78/00110 Manufacture of talc-based tiles.
Published: 01 Aug 1978 Created: 06 Nov 2024 Revised: 06 Nov 2024

Large deposits of talc/albite rock are known at Gumeracha, about 30 kilometres from Adelaide. The deposits have been worked for low grade talc. Albite feldspar impurity precludes use of the material for many purposes. Since feldspar is a commonly...

Large deposits of talc/albite rock are known at Gumeracha, about 30 kilometres from Adelaide. The deposits have been worked for low grade talc. Albite feldspar impurity precludes use of the material for many purposes. Since feldspar is a commonly used ceramic raw material, the talc/albite material was investigated as a ceramic raw material for the manufacture of once-fired, vitrified glazed floor tiles. This product was selected in order to assist and re-establish the tile making plant at Elizabeth, currently in receivership, and also to promote the use of the local raw material. Compositions of bodies suitable for the production of once-fired, pressed floor tiles using the fast-firing kiln at CTM Ltd, Elizabeth, were investigated on a laboratory scale. The effect of firing cycles was studied. Glazes for use in such a tile were developed and tested. It was found that high quality glazed tiles could be made using fast firing methods. The body composition 70% talc/albite, 30% clay (Dreckows) was found to give good results when fired at a rate equivalent to 1000 square metres per day at the CTM Ltd plant. Staining of the body to produce coloured unglazed tiles was investigated but results indicated that only a small variation in colour could be produced. Glazing results were satisfactory and a range of suitable matt and gloss glazes were developed. The laboratory investigations indicate that the talc/albite material is suitable for the production of fast fired, vitrified, glazed floor tiles. The thermal shock resistance properties of this material are very good and indicate that considerably higher production rates are possible compared to a traditional clay body. The low firing shrinkage should lead to better shape and size control. These and other factors indicate that talc/albite is an attractive raw material for tile making. Although stains were not found successful for unglazed tile production, glazes were developed to produce a satisfactory range of tile finishes.

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About this record

Record No rb7800110
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Geological Survey Geoscience Publication
Contributor Amdel Ltd
Sponsor South Australia. Department of Mines and Energy
Tenement
Tenement Holder
Operator
Geological Province
    Mine Name
    Stratigraphy
    Commodity
    Notes
    Notes: Amdel project: Amdel 1/1/179.
    Geographic Locality: Mount Lofty Ranges
    Doc No: RB 78/00110

    Notes: Amdel project: Amdel 1/1/179. Geographic Locality: Mount Lofty Ranges Doc No: RB 78/00110

    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/rb7800110
    Citation Spencer, W.G.;Ware, M.D. 1978. RB 78/00110 Manufacture of talc-based tiles. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
    https://pid.sarig.sa.gov.au/document/rb7800110

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[138.5,-35],[139,-35],[139,-34.5],[138.5,-34.5],[138.5,-35]]]}
    Purpose
    
                        
                        
    
                        
                      
    Lineage