Presentation - Third International Slag Valorisation Symposium

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Microstructural control 48 Complex materials Number of interacting effects Reduced viscosity of the glass phase Liquid phase sintering Volatilisation of various components Internal oxidation and reduction reactions Formation of pozzolanic coating Second International Slag Valorisation Symposium │ Cheeseman, Imperial College London
Schematic microstructure 1 Ideal lightweight aggregate � Strong core with uniform voids � Dense surface coating � Rough surface � Approximately spherical � 6 - 10 mm diameter � CaO rich surface coating � Black core due to reducing conditions 49 Second International Slag Valorisation Symposium │ Cheeseman, Imperial College London
Page 1 and 2: Production of sintered lightweight
Page 3 and 4: World population growth 3 http://ww
Page 5 and 6: Drivers for change Environmental is
Page 7 and 8: Conventional primary raw materials
Page 9 and 10: Wastes as important new resources S
Page 11 and 12: 11 Residues from thermal processes
Page 13 and 14: General characteristics and issues
Page 15 and 16: 15 Lightweight aggregate for struct
Page 17 and 18: Lightweight aggregate 17 Second Int
Page 19 and 20: Lightweight aggregate applications
Page 21 and 22: Page 21 Lytag One of the most succe
Page 23 and 24: Page 23 Schematic of a sinter stran
Page 25 and 26: Fired density (g/cm³) 3.0 2.8 2.6
Page 27 and 28: Lightweight aggregate using inciner
Page 29 and 30: Examples of UK EfW plants 29 Second
Page 31 and 32: 31 New proposed EfW facilities Sour
Page 33 and 34: Combustion at 900 to 1000°C 33 Sec
Page 35 and 36: Bottom ash recycling plant AGED RAW
Page 37 and 38: 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1
Page 39 and 40: Lightweight aggregate manufactured
Page 41 and 42: UK sewage sludge incinerators 41 Se
Page 43 and 44: Blackburn Meadows SEM with EDS 1000
Page 45 and 46: 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 Key I
Page 47: Mechanisms occurring during rapid s
Page 51 and 52: Schematic microstructure 3 Marginal
Page 53 and 54: Schematic microstructure 5 Over-blo
Page 55: Acknowledgements The conference org

Presentation - Third International Slag Valorisation Symposium

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