Publication: Microstructure and mineralogy of lightweight aggregates manufactured
from mining and industrial wastes
Loading...
Full text at PDC
Publication Date
2011
Authors
González Corrochano, B.
Alonso Azcárate, Jacinto
Rodas, Magdalena
Luque del Villar, Francisco Javier
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier, Ltd.
Citations
Exportar
Abstract
The microstructure and mineralogy of lightweight aggregates manufactured with washing aggregate
sludge, sewage sludge and a clay-rich sediment have been studied. The mineralogical analysis revealed
the neo-formation of plagioclase and pyroxene group minerals and a minor presence of gehlenite. Some
relationships may be established: (i) heating temperature and dwell time affect the formation of new
porosity; (ii) the disappearance of pyroxenes could produce changes in the density of the solid material
in the lightweight aggregates; (iii) when an external glassy film is not present, water absorption values
depend on the size and number of each type of pore.