The role of firing temperature, firing time and quartz grain size on phase-formation, thermal dilatation and water absorption in sanitary-ware vitreous bodies

Bernasconi, Andrea; Diella, Valeria; Pagani, A.; Pavese, Alessandro; Francescon, F.; Young, K.; Stuart, J P; Tunnicliffe, Lewis B.

doi:10.1016/j.jeurceramsoc.2011.02.006

Cited by 37 publications

(36 citation statements)

References 17 publications

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“…However, at this elevated temperature, there is further reduction in water absorption values with samples A 4 and A 5 showing similar best water absorption. Low values of water absorption indicate high level of vitrification . Moreover, it is observed that all the developed sanitary bodies containing RSW and RSLG showed better performance in water as their water absorption values are far lower to the standard requirement of 0.5%…”

Section: Resultsmentioning

confidence: 96%

Influence of postsintered wastes incorporation on physico‐mechanical and structural evolution of vitreous ceramics

Owoeye

Ajayi

Isinkaye

et al. 2019

Int J Ceramic Engine & Sci

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Due to high consumption of conventional materials such as quartz and feldspar in most ceramic products processing, the recent practice has been targeted at exploration and utilization of some industrial wastes with similar characteristics to solely or partially replace these conventional materials to reduce cost of production, and serves as a means of solid wastes management. In this regard, this work aims at incorporating postsintered wastes as partial and sole alternatives to quartz and feldspar in the production of vitreous sanitary ceramics. Vitreous sanitary ware bodies containing discarded sanitary wares and waste soda‐lime glasses as substitute to quartz and feldspar respectively were prepared using slip casting process. Several samples measuring 120 × 50 × 10 mm were cast, left to dry at ambient temperature for 24 hours followed by oven‐drying at 105°C for another 12 hours. The cast samples were then subjected to sintering at temperatures of 1150 and 1200°C, respectively, and then soaked for 90 minutes. Physico‐mechanical, phase, and structural evaluations were carried out to assess the performance of the vitreous sanitary bodies. The results showed that samples containing postsintered wastes displayed better physical, mechanical, and structural properties, while the chemical compositions of the prepared samples showed close similarity to standard Twyford sanitary ware. However, better properties were observed for samples sintered at 1200°C which might be attributed to high vitrification at elevated temperature.

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Section: Resultsmentioning

confidence: 96%

Influence of postsintered wastes incorporation on physico‐mechanical and structural evolution of vitreous ceramics

Owoeye

Ajayi

Isinkaye

et al. 2019

Int J Ceramic Engine & Sci

View full text Add to dashboard Cite

show abstract

“…Water absorption: low values of water adsorption or porosity suggest a high degree of vitrification [29,33]. Moreover, low water absorption (<0.5%) is fundamental to guarantees hygiene during the product life cycle, in particular for WC pans.…”

Section: Resultsmentioning

confidence: 99%

“…Firing above vitrification temperature range results in a drastic fall of the physical properties due to forced expulsion of the entrapped gases, resulting in blisters and bloating [33,35]. Fig.…”

Section: Resultsmentioning

confidence: 99%

“…reported that the formation of mullite in ceramics occurs at lower temperatures when the waste glass is added [43][44][45][46]. Therefore, the formation of crystalline phases in Sanitser body through XRPD analysis was verified.…”

Section: Xrpd (X-ray Powder Diffraction) Analysis: It Has Beenmentioning

confidence: 89%

“…Therefore, the formation of crystalline phases in Sanitser body through XRPD analysis was verified. This allowed to confirm the formation of mullite by the Rietveld method [43][44][45][46]. Mullite was synthesized by firing the starting material (Sanitser body) at various temperatures.…”

Section: Xrpd (X-ray Powder Diffraction) Analysis: It Has Beenmentioning

confidence: 99%

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Sanitser, an innovative sanitary ware body, formulated with waste glass and recycled materials

Martini

Fortuna

et al. 2017

Cerâmica

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In the present paper, the results of "Sanitser" Life European project are presented. The aim of this study was to reduce the firing temperature for ceramic body (from 1250 to 1170 °C). This was achieved substituting feldspar and quartz with recycled blend materials and a little percentage of flux (less than 3%); in a sanitary ware vitreous china formulation a waste glass, granitic materials and fired broken ceramic pieces were introduced. Tests performed on the Sanitser formulation showed that it has the same final physical-chemical characteristics of the industrial vitreous china (VC) body. Besides, different ceramic pieces (wash basin, bidet and WC pan) were compared with VC production. The results showed that Sanitser body can replace vitreous china in the sanitary ware production. In this project, the firing temperature of the ceramic body is reduced significantly with a supposed decrease of the CO 2 emissions. In Sanitser formulation, about 43.6% of recycled materials that would end in dumps were utilized. Keywords: waste glass ceramic, porcelain, slip casting, thermal application. Resumo Neste artigo são apresentados os resultados do projeto europeu LIFE "Sanitser". Este trabalho teve como objetivo reduzir a temperatura de queima da massa cerâmica (de 1250 para 1170 °C). Isto foi obtido substituindo a mistura de feldspato e quartzo por materiais reciclados e uma pequena percentagem de fundente (menos do que 3%); em uma formulação de massa de sanitário vitrificado foram introduzidos resíduos de vidro, granito e materiais cerâmicos quebrados após queima. Os testes realizados mostraram que a formulação Sanitser apresenta as mesmas propriedades físicas e químicas da cerâmica vitrificada (VC

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Frictional heating and thermal effects of ancient rockslide sedimentology: a case study of the Dora Kamiyama Rockslide and implications for dynamic reconstruction

Yang

Liu

Wang

et al. 2022

Bull Eng Geol Environ

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The role of firing temperature, firing time and quartz grain size on phase-formation, thermal dilatation and water absorption in sanitary-ware vitreous bodies

Cited by 37 publications

References 17 publications

Influence of postsintered wastes incorporation on physico‐mechanical and structural evolution of vitreous ceramics

Influence of postsintered wastes incorporation on physico‐mechanical and structural evolution of vitreous ceramics

Sanitser, an innovative sanitary ware body, formulated with waste glass and recycled materials

Frictional heating and thermal effects of ancient rockslide sedimentology: a case study of the Dora Kamiyama Rockslide and implications for dynamic reconstruction

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