PC-based and MgO-based binders stabilised/solidified heavy metal-contaminated model soil: Strength and heavy metal speciation in early stage
| cam.issuedOnline | 2018-01-30 | |
| dc.contributor.author | Wang, F | |
| dc.contributor.author | Shen, Z | |
| dc.contributor.author | Tabbaa, AAL | |
| dc.contributor.orcid | Wang, F [0000-0001-7844-5008] | |
| dc.date.accessioned | 2018-12-14T00:32:14Z | |
| dc.date.available | 2018-12-14T00:32:14Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | <jats:p> An investigation into using Portland cement (PC)-based and magnesia (MgO)-based binders for treating contaminated model soil was carried out to study the benefit of novel binders over conventional ones in stabilisation/solidification systems (S/S), as well as the binding mechanism involved. Binders used in this study include PC, ground granulated blast-furnace slag, pulverised fly ash and magnesia. The strength and the leaching properties of S/S treated samples by way of unconfined compressive strength and sequential extraction tests are presented. The results show that the early-age strength of these mixes is influenced by the reactivity of binders; heavy metals were principally distributed in the carbonate and the iron/manganese (Fe/Mn) oxide fractions in all mixes after 28 days of curing time; the speciation distribution characteristics are not the same among zinc (Zn), copper (Cu), nickel (Ni) and lead (Pb), and the stability of Zn, Cu, Ni and Pb benefits from a longer curing time and the use of magnesia. </jats:p> | |
| dc.identifier.doi | 10.17863/CAM.34260 | |
| dc.identifier.eissn | 1751-7656 | |
| dc.identifier.issn | 0016-8505 | |
| dc.identifier.uri | https://www.repository.cam.ac.uk/handle/1810/286951 | |
| dc.language.iso | eng | |
| dc.publisher | Thomas Telford Ltd. | |
| dc.publisher.url | http://dx.doi.org/10.1680/jgeot.17.p.194 | |
| dc.subject | chemical properties | |
| dc.subject | laboratory tests | |
| dc.subject | pollution migration/control | |
| dc.subject | soil stabilisation | |
| dc.subject | stress analysis | |
| dc.title | PC-based and MgO-based binders stabilised/solidified heavy metal-contaminated model soil: Strength and heavy metal speciation in early stage | |
| dc.type | Article | |
| prism.endingPage | 1030 | |
| prism.issueIdentifier | 11 | |
| prism.publicationDate | 2018 | |
| prism.publicationName | Geotechnique | |
| prism.startingPage | 1025 | |
| prism.volume | 68 | |
| pubs.funder-project-id | Engineering and Physical Sciences Research Council (EP/M003159/1) | |
| rioxxterms.licenseref.startdate | 2018-11 | |
| rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
| rioxxterms.type | Journal Article/Review | |
| rioxxterms.version | AM | |
| rioxxterms.versionofrecord | 10.1680/jgeot.17.P.194 |
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