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Title: A systematic study of cement/PFA chemical stabilisation/solidification process for the treatment of heavy metal waste
Authors: Poon, CS 
Lio, KW
Tang, CI
Keywords: Chemical stabilisation
Hazardous waste
Issue Date: 2001
Publisher: SAGE Publications
Source: Waste management and research, 2001, v. 19, no. 4, p. 276-283 How to cite?
Journal: Waste management and research 
Abstract: The aim of this study is to systematically quantify the physical and chemical properties of the cement based solidified/stabilised heavy metal waste with increasing replacement of cement by PFA. Bulk density and unconfined compressive strength are measured as the physical parameters. The equilibrium extraction tests, sequential chemical tests and dynamic leaching tests are reported as chemical characteristics. The results showed PFA-blended cement-based waste forms have higher porosity and lower strength than the pure cement-based waste forms at experimental curing time. The lower alkalinities of the PFA-blended cement-based waste forms, however, lead to higher leach rates of heavy metals when the waste is exposed to an acidic medium.
ISSN: 0734-242X
EISSN: 1096-3669
DOI: 10.1177/0734242X0101900403
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