Imperial College London
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Professor Sue Grimes

Faculty of Engineering, Department of Civil and Environmental Engineering

RAEng Chair in Waste & Resource Management
 
 
 
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Contact

 

+44 (0)20 7594 5966s.grimes

 
 
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Location

 

233Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bourtsalas:2015:10.1016/j.wasman.2015.02.016,
author = {Bourtsalas, A and Vandeperre, LJM and Grimes, SM and Themelis, NJ and Cheeseman, CR},
doi = {10.1016/j.wasman.2015.02.016},
journal = {Waste Management},
pages = {217--225},
title = {Production of pyroxene ceramics from the fine fraction of incinerator bottom ash},
url = {http://dx.doi.org/10.1016/j.wasman.2015.02.016},
volume = {45},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Incinerator bottom ash (IBA) is normally processed to extract metals and the coarse mineral fraction is used as secondary aggregate. This leaves significant quantities of fine material, typically less than 4mm, that is problematic as reuse options are limited. This work demonstrates that fine IBA can be mixed with glass and transformed by milling, calcining, pressing and sintering into high density ceramics. The addition of glass aids liquid phase sintering, milling increases sintering reactivity and calcining reduces volatile loss during firing. Calcining also changes the crystalline phases present from quartz (SiO2), calcite (CaCO3), gehlenite (Ca2Al2SiO7) and hematite (Fe2O3) to diopside (CaMgSi2O6), clinoenstatite (MgSiO3) and andradite (Ca3Fe2Si3O12). Calcined powders fired at 1080°C have high green density, low shrinkage (<7%) and produce dense (2.78g/cm3) ceramics that have negligible water absorption. The transformation of the problematic fraction of IBA into a raw material suitable for the manufacture of ceramic tiles for use in urban paving and other applications is demonstrated.
AU  - Bourtsalas,A
AU  - Vandeperre,LJM
AU  - Grimes,SM
AU  - Themelis,NJ
AU  - Cheeseman,CR
DO  - 10.1016/j.wasman.2015.02.016
EP  - 225
PY  - 2015///
SN  - 0956-053X
SP  - 217
TI  - Production of pyroxene ceramics from the fine fraction of incinerator bottom ash
T2  - Waste Management
UR  - http://dx.doi.org/10.1016/j.wasman.2015.02.016
UR  - http://hdl.handle.net/10044/1/21643
VL  - 45
ER  -
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