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Potential use of red gypsum as glaze product

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Bibliographic Details
Main Author: Syarifah Syazwani, Syed Zulkiple
Other Authors: Ayu Wazira Azhari
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2013
Subjects:
Red gypsum
Glaze
Fly ash
Silica
Industrial wastes
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/23609
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spelling my.unimap-236092013-02-16T04:39:55Z Potential use of red gypsum as glaze product Syarifah Syazwani, Syed Zulkiple Ayu Wazira Azhari Red gypsum Glaze Fly ash Silica Industrial wastes Access is limited to UniMAP community. During the extraction process of titanium (iv) oxide from its ores, red gypsum were produced as the by-product. A total of 340,000 tonnes of red gypsum were produced per year in Malaysia. Main contents of red gypsum were CaO (36.6%), SO3 (35.8%), Fe2O3 (20.89%), TiO2 (4.61%) and small amount of Al2O3. Three most important components in making glaze are silica, flux and alumina. Red gypsum contain high flux in the form of more than 30% CaO and other oxide (10%) which is potential in making glaze for ceramics industry. In this study, material that contain alumina like feldspar, kaolin, bentonite as well as fly ash with high silica ( more than 60%) in the form of SiO were added to make a good glaze. Different composition of glaze were studied in term of its surface hardness, chemical resistance in acidic solution 10% HCl and 10 % KOH, as well as its impervious level. After the impervious test, no changes of color seen. In acid solution no staining observed. While in alkaline solution, the specimen showed a slightly gain weight and slightly staining on surface have been observed. For hardness test, scratching the specimen also gave the same result which was not visible. As a conclusion, red gypsum has the potential in production of glaze. 2013-02-16T04:39:55Z 2013-02-16T04:39:55Z 2010-04 Learning Object http://hdl.handle.net/123456789/23609 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Red gypsum
Glaze
Fly ash
Silica
Industrial wastes
spellingShingle Red gypsum
Glaze
Fly ash
Silica
Industrial wastes
Syarifah Syazwani, Syed Zulkiple
Potential use of red gypsum as glaze product
description Access is limited to UniMAP community.
author2 Ayu Wazira Azhari
author_facet Ayu Wazira Azhari
Syarifah Syazwani, Syed Zulkiple
format Learning Object
author Syarifah Syazwani, Syed Zulkiple
author_sort Syarifah Syazwani, Syed Zulkiple
title Potential use of red gypsum as glaze product
title_short Potential use of red gypsum as glaze product
title_full Potential use of red gypsum as glaze product
title_fullStr Potential use of red gypsum as glaze product
title_full_unstemmed Potential use of red gypsum as glaze product
title_sort potential use of red gypsum as glaze product
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/23609
_version_ 1643794060793610240
score 13.222552

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