Immobilization of calcium sulfate contained in demolition waste.
J Hazard Mater
; 151(2-3): 840-6, 2008 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-18248885
ABSTRACT
This paper presents the results of a laboratory study undertaken to examine the treatment of demolition waste containing calcium sulfate by means of calcium sulfoaluminate clinker (CSA). The quantity of CSA necessary to entirely consume calcium sulfate was determined. Using infrared spectrometry analysis and X-ray diffraction, it was shown that calcium sulfate was entirely consumed when the ratio between CSA and calcium sulfate was 4. Standard sand was polluted by 4% calcium sulfate. Two solutions were investigated *either global treatment of sand by CSA, *or immobilization of calcium sulfate by CSA, followed by the introduction of this milled mixture in standard sand. Regardless of the type of treatment, swelling was almost stabilized after 28 days of immersion in water.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Sulfato de Calcio
/
Eliminación de Residuos
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Revista:
J Hazard Mater
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2008
Tipo del documento:
Article
País de afiliación:
Francia