The Influence of Pore Water Contamination on the Cement Treated Sandy Soil

공극수 오염이 시멘트 고화처리된 사질토에 미치는 영향

  • 유찬 (경상대학교 농업시스템공학부 농공학전공)
  • Published : 2003.11.01

Abstract

Laboratory experiments were carried out to investigate the influence of pore water contamination on the treatment effect of sandy soil which was solidified by Portland cement. In the experiments, setting time of hydraulic cement that was mixed with contaminated mixing water was measured using Vicat equipment and observed the tendency of setting process with the kind of contaminants, organic or inorganic components. It was shown that organic contaminants of the mixing water affect largely on the initial setting process of hydraulic cement and inorganics, expecially heavy metals, did not affect on the initial setting process, otherwise it was appeared that setting time of the sandy soil that was contaminated with inorganic components was apparently faster than the sandy soil that did not include inorganic components even though organic concentrations was relatively low level (COD=200∼300) in the mixing water. The results of unconfined compression strength test (UCST) were well consistent with the results of Vicat equipment test.

Keywords

References

  1. Grouting and Deep Mixing Preliminary studies of solidification and chemical fixation of liquid waste containing methylene blue Al-Tabbaa,A.;Moore,G.D.;Yonekura(ed.);Terashi & Shibazaki(ed.)
  2. Medium term performance of stabilised/solidfied contaminated soil-grout materials v.3 no.ⅩⅣ ICSMFE Al-Tabbaa;A. & C. W. Evans
  3. 11th SAG conference Stabilization of clay materials with cement and pulverized fuel ash Bell,F.G.
  4. A Study on the shallow treatment of soft ground (Ⅱ) Chungang Univ.
  5. Geotechnique v.17 The influence of soil mineralogical composition on cement stabilization Croft,J.B. https://doi.org/10.1680/geot.1967.17.2.119
  6. GEOENVI-RONMENT 2000 v.2 Containment, stabilization and treatment of contaminated soils using in-situ soil mixing Day,S.R.;Ryan,C.
  7. Proc. of the Conf. In Situ Remediation of the Geo-Environment no.71 Stabilization of cadmium-impacted soils using jet-grouting techniques Day,S.R.;Zarlinski,S.J.;Jacobson,P.Evans(ed.)
  8. Standard method Dongwha Tech.
  9. Grouting and Deep Mixing Study on soil properties affecting the strength of cement treated soils Gotoh,M.;Yonekura(ed.);Terashi & Shibazaki(ed.)
  10. Waste deposit Encapsulation using vertical Barriers v.3 no.ⅩⅣ ICSMFE Hermanns-Stengele,R.
  11. Grouting and Deep Mixing On the stabilization of organic soils Huttunen,E.;Kujala,K.;Yonekura(ed.);Terashi & Shibazaki(ed.)
  12. Manual for ground improvement using cement like solidifying reagent -2nd Ed.- Japan ACI
  13. Grouting and Deep Mixing Effect of humus on the binding reaction instabilized soils Kujala,K.;Makikyro,M.;Lehto,O.;Yonekura(ed.);Terashi & Shibazaki(ed.)
  14. Soil Preservation Policy Ministry of Environment
  15. Proc. of The 2nd Intl' Congress on Environmental Geotechnics Anisotropy of Gasoline-Contaminated Sands Grouted with Microfine Cement, Environment Geotechnics Schwarz,L.G.;Krizek,R.J.;Masashi Kamon(ed.)
  16. GEOENVIRONMENT 2000 v.2 Grouting Gasoline-Contaminated Sand with Microfine Cement Schwarz,L.G.;Krizek,R.J.
  17. Grouting & Deep Mixing Deformation and strength characteristics of cement-treated soils in trans-Tokyo bay highway project Tatsuoka,F.;Y.Kohata,;K.Uchida;K.Imai;Yonekura(ed.);Terashi & Shibazaki(ed.)
  18. GEOENVIRONMENT 2000 v.2 Solidification/stabilization of phenol contaminated soils Vipulanadan,C.;Mamidi,H.B.;Wang,S.;Krishan,S.
  19. Proc. of the Conf. In Situ Remediation of the Geoenvironment no.71 Solidification/stabilization of hexavalented contaminated soil Vipulanandan,C.;Wang,S.;Evans(ed.)
  20. Treatment technologies for site cleanup : Annual status report(10th ed.) Office of Solid waste & Emergency response, EPA-541-R-01-004 U.S. EPA
  21. Proc. of '02 Dredging & Geoenvironmental Conf. Protection of under-ground environment from contamination Yu,C.;W.S.Han;S.Y.Kim;D.K.Chung;M.B.Han