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Open AccessArticle

Acid-Alkali Resistance of New Reclaimed Tiles Containing Sewage Sludge Ash and Waste Glass

Department of Civil and Ecological Engineering, I-Shou University, Kaohsiung 84001, Taiwan
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Author to whom correspondence should be addressed.
Academic Editor: Teen-Hang Meen
Materials 2016, 9(7), 546; https://doi.org/10.3390/ma9070546
Received: 13 May 2016 / Revised: 27 June 2016 / Accepted: 29 June 2016 / Published: 7 July 2016
(This article belongs to the Special Issue Selected Papers from ICASI 2016)
In this study, properties of newly developed reclaimed tiles in a harmful environment were investigated. A portion of clay used to manufacture tiles was replaced with sewage sludge ash (SSA) and waste glass to produce the new reclaimed tiles. To investigate the effects of SSA and waste glass on the properties of the tiles, different specimens were blended and placed in acid-alkali solutions. The reclaimed tile specimens were manufactured by clay, 10% SSA, and five different mixes of waste glass replacement, namely, 0%, 10%, 20%, 40%, and 60%. These specimens were calcined at 1000 °C and subsequently underwent a series of tests, including TGA/DTA (thermogravimetric analysis/differential thermal analysis), SEM (scanning electron microscopy), XRD (X-ray diffraction), bending strength, weight loss, and porosity. Test results show that shortcomings associated with the introduction of the sludge ash were improved by the admixture of waste glass, especially in the aspects of shrinkage and bending strength. The study showed that the new reclaimed tiles performed relatively well in acid-alkali resistance tests but appeared to have better alkali resistance than acid resistance. It was also found that the optimal mix of such reclaimed tiles was 10% SSA, 10% waste glass, and 80% clay. View Full-Text
Keywords: reclaimed tiles; sewage sludge ash; waste glass; acid-alkali resistance reclaimed tiles; sewage sludge ash; waste glass; acid-alkali resistance
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MDPI and ACS Style

Lin, D.-F.; Lin, K.-L.; Luo, H.-L.; Xu, J.-Q. Acid-Alkali Resistance of New Reclaimed Tiles Containing Sewage Sludge Ash and Waste Glass. Materials 2016, 9, 546.

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