NDLI: Sewage sludge ash characteristics and potential for use in bricks, tiles and glass ceramics.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Lynn, Ciarán J. Dhir, Ravindra K. Ghataora, Gurmel S.
Description	Author Affiliation: Lynn CJ ( School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK E-mail: r.k.dhir@bham.ac.uk.); Dhir RK ( School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK E-mail: r.k.dhir@bham.ac.uk.); Ghataora GS ( School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK E-mail: r.k.dhir@bham.ac.uk.)
Abstract	The characteristics of sewage sludge ash (SSA) and its use in ceramic applications pertaining to bricks, tiles and glass ceramics have been assessed using the globally published literature in the English medium. It is shown that SSA possesses similar chemical characteristics to established ceramic materials and under heat treatment achieves the targeted densification, strength increases and absorption reductions. In brick and tile applications, technical requirements relating to strength, absorption and durability are achievable, with merely manageable performance reductions with SSA as a partial clay replacement. Fluxing properties of SSA facilitate lower firing temperatures during ceramics production, although reductions in mix plasticity leads to higher forming water requirements. SSA glass ceramics attained strengths in excess of natural materials such as granite and marble and displayed strong durability properties. The thermal treatment and nature of ceramic products also effectively restricted heavy metal leaching to low levels. Case studies, predominantly in bricks applications, reinforce confidence in the material with suitable technical performances achieved in practical conditions.
File Format	HTM / HTML
ISSN	02731223
Issue Number	1
Journal	Water Science & Technology
Volume Number	74
e-ISSN	19969732
Language	English
Publisher	IWA Publishing
Publisher Date	2016-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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