Application of two novel magnesia-based cements in the stabilization/ solidification of contaminated soils

Srinath Iyengar, Abir Al-Tabbaa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

This paper presents a preliminary investigation of the effectiveness of two novel magnesia-based cements in the stabilization/solidification of contaminated soils. The first is a reactive magnesia cement, which includes significant quantities of fly ash and in some cases also contains Portland cement. Magnesia cements are a recent invention and are claimed to have significant sustainability advantages over Portland cement. The second is a magnesia phosphate cement which consists of an acid phosphate source, such as potassium dihydrogen orthophosphate or triple super phosphate, and dead burned magnesia. It has mainly been used as refractory material, rapid-setting cement in a wide range structural repair works and has had limited application in stabilization/solidification treatments. Due to its low pH, it could have possible applications in facilitating biodegradation of organic contaminants in parallel to the stabilization/solidification of heavy metals in the form of very low solubility phosphates. The results presented here look specifically at the immobilization of zinc and lead in a model sand spiked with zinc chloride and lead nitrate respectively. Copyright ASCE 2008.

Original languageEnglish
Title of host publicationProceedings of Sessions of GeoCongress 2008 - GeoCongress 2008
Subtitle of host publicationGeotechnics of Waste Management and Remediation, GSP 177
Pages716-723
Number of pages8
Edition177
DOIs
Publication statusPublished - 1 Dec 2008
Externally publishedYes
EventGeoCongress 2008: Geotechnics of Waste Management and Remediation - New Orleans, LA, United States
Duration: 9 Mar 200812 Mar 2008

Other

OtherGeoCongress 2008: Geotechnics of Waste Management and Remediation
CountryUnited States
CityNew Orleans, LA
Period9/3/0812/3/08

Fingerprint

Magnesia
solidification
Solidification
Cements
stabilization
cement
Stabilization
Soils
Phosphates
Portland cement
phosphate
Zinc chloride
Patents and inventions
zinc
Biodegradation
Fly ash
Refractory materials
Heavy metals
Potassium
Sustainable development

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Cite this

Iyengar, S., & Al-Tabbaa, A. (2008). Application of two novel magnesia-based cements in the stabilization/ solidification of contaminated soils. In Proceedings of Sessions of GeoCongress 2008 - GeoCongress 2008: Geotechnics of Waste Management and Remediation, GSP 177 (177 ed., pp. 716-723) https://doi.org/10.1061/40970(309)90

Application of two novel magnesia-based cements in the stabilization/ solidification of contaminated soils. / Iyengar, Srinath; Al-Tabbaa, Abir.

Proceedings of Sessions of GeoCongress 2008 - GeoCongress 2008: Geotechnics of Waste Management and Remediation, GSP 177. 177. ed. 2008. p. 716-723.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Iyengar, S & Al-Tabbaa, A 2008, Application of two novel magnesia-based cements in the stabilization/ solidification of contaminated soils. in Proceedings of Sessions of GeoCongress 2008 - GeoCongress 2008: Geotechnics of Waste Management and Remediation, GSP 177. 177 edn, pp. 716-723, GeoCongress 2008: Geotechnics of Waste Management and Remediation, New Orleans, LA, United States, 9/3/08. https://doi.org/10.1061/40970(309)90
Iyengar S, Al-Tabbaa A. Application of two novel magnesia-based cements in the stabilization/ solidification of contaminated soils. In Proceedings of Sessions of GeoCongress 2008 - GeoCongress 2008: Geotechnics of Waste Management and Remediation, GSP 177. 177 ed. 2008. p. 716-723 https://doi.org/10.1061/40970(309)90
Iyengar, Srinath ; Al-Tabbaa, Abir. / Application of two novel magnesia-based cements in the stabilization/ solidification of contaminated soils. Proceedings of Sessions of GeoCongress 2008 - GeoCongress 2008: Geotechnics of Waste Management and Remediation, GSP 177. 177. ed. 2008. pp. 716-723
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