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Valorization of ceramic floor tiles through the addition of urban glass waste for preserving energy consumption
 
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Egyptian Academy For Engineering And Advanced Technology Postal address: 11788
CORRESPONDING AUTHOR
Eman Mohamed Abdel Hamid   

Egyptian Academy For Engineering And Advanced Technology Postal address: 11788
 
 
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ABSTRACT
The Middle East and North Africa produce about 21.7 million tons of municipal solid waste, about 4% of this waste was urban glass waste (UGW). Egypt produces about 2280.8 tons per day of UGW. This study aims to show the effect of using (UGW) in the manufacturing of ceramic floor tiles for the dual purpose to decrease the manufacturing cost of floor tiles and serve the sustainability of raw materials using cheap waste. The characteristics of raw materials were determined by XRD, XRF, TGA XRF, distribution of particle size and powder density. (UGW) was collected, ground and mixed with different proportions ranging from 0 to 35%. The samples were moulded under uniaxial pressure of 15 MPa with dimensions of (150*150*7.5) mm3 then dried and fired at different firing temperatures of (1050, 1100 and 1120℃) with a soaking time of 15 minutes. The fired samples were characterized by linear firing shrinkage, apparent porosity, water absorption, bulk density, MOR and breaking strength which compared with International Standard Limits. The results indicated that increasing UGW decreases water absorption, and apparent porosity while the mechanical properties of the fired samples increased as a result of the formation liquid phase that is responsible for closing pores. The results indicated that samples containing above 25% waste addition fired at 1100℃ can fulfil the minimum requirements for water absorption, breaking strength and MOR after comparing with ISO limits.