Stabilization/solidification of lead-contaminated soil using cement and rice husk ash

C-Y Yin; H.B. Mahmud; M.G. Shaaban

doi:10.1016/j.jhazmat.2006.05.013

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Stabilization/solidification of lead-contaminated soil using cement and rice husk ash

Journal article

Peer reviewed

Stabilization/solidification of lead-contaminated soil using cement and rice husk ash

C-Y Yin, H.B. Mahmud and M.G. Shaaban

Journal of Hazardous Materials, Vol.137(3), pp.1758-1764

2006

DOI: https://doi.org/10.1016/j.jhazmat.2006.05.013

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Abstract

This paper presents the findings of a study on solidification/stabilization (S/S) of lead-contaminated soil using ordinary Portland cement (OPC) and rice husk ash (RHA). The effects of varying lead concentrations (in the form of nitrates) in soil samples on the physical properties of their stabilized forms, namely unconfined compressive strength (UCS), setting times of early mixtures and changes in crystalline phases as well as chemical properties such as leachability of lead, pH and alkalinity of leachates are studied. Results have indicated that usage of OPC with RHA as an overall binder system for S/S of lead-contaminated soils is more favorable in reducing the leachability of lead from the treated samples than a binder system with standalone OPC. On the other hand, partial replacement of OPC with RHA in the binder system has reduced the UCS of solidified samples.

Details

Title: Stabilization/solidification of lead-contaminated soil using cement and rice husk ash
Authors/Creators: C-Y Yin (Author/Creator)
H.B. Mahmud (Author/Creator)
M.G. Shaaban (Author/Creator)
Publication Details: Journal of Hazardous Materials, Vol.137(3), pp.1758-1764
Publisher: Elsevier BV
Identifiers: 991005540734907891
Copyright: 2006 Elsevier B.V.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 7 Engineering & Materials Science; 7.121 Concrete Science; 7.121.26 Advanced Concrete
Web Of Science research areas: Engineering, Environmental; Environmental Sciences
ESI research areas: Engineering