title: Effects of waste glass and waste foundry sand additions on reclaimed tiles containing sewage sludge ash.
abstract: Applying sewage sludge ash (SSA) to produce reclaimed tiles is a promising recycling technology in resolving the increasing sludge wastes from wastewater treatment. However, performance of such reclaimed tiles is inferior to that of original ceramic tiles. Many researchers have therefore tried adding various industrial by-products to improve reclaimed tile properties. In this study, multiple materials including waste glass and waste foundry sand (WFS) were added in an attempt to improve physical and mechanical properties of reclaimed tiles with SSA. Samples with various combinations of clay, WFS, waste glass and SSA were made with three kiln temperatures of 1000°C, 1050°C, and 1100°C. A series of tests on the samples were next conducted. Test results showed that waste glass had positive effects on bending strength, water absorption and weight loss on ignition, while WFS contributed the most in reducing shrinkage, but could decrease the tile bending strength when large amount was added at a high kiln temperature. This study suggested that a combination of WFS from 10% to 15%, waste glass from 15% to 20%, SSA at 10% at a kiln temperature between 1000°C and 1050°C could result in quality reclaimed tiles with a balanced performance.
authors.affiliation: a Department of Civil and Ecological Engineering , I-Shou University , Kaohsiung City , Taiwan, ROC.
authors.forename: Deng-Fong
authors.initials: DF
authors.lastname: Lin
authors.affiliation: a Department of Civil and Ecological Engineering , I-Shou University , Kaohsiung City , Taiwan, ROC.
authors.forename: Huan-Lin
authors.initials: HL
authors.lastname: Luo
authors.affiliation: a Department of Civil and Ecological Engineering , I-Shou University , Kaohsiung City , Taiwan, ROC.
authors.forename: Kuo-Liang
authors.initials: KL
authors.lastname: Lin
authors.affiliation: a Department of Civil and Ecological Engineering , I-Shou University , Kaohsiung City , Taiwan, ROC.
authors.forename: Zhe-Kun
authors.initials: ZK
authors.lastname: Liu
mesh_terms: D000538:Aluminum Silicates; D000077215:Clay; D003252:Construction Materials; D005898:Glass / Q000737:chemistry; D007220:Industrial Waste / Q000032:analysis; D008670:Metals / Q000032:analysis; D059027:Recycling; D012722:Sewage / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D000538:Aluminum Silicates; D007220:Industrial Waste; D008670:Metals; D012722:Sewage; D014874:Water Pollutants, Chemical; D000077215:Clay
keywords: Reclaimed tile; clay; sewage sludge ash; waste foundry sand; waste glass