Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Use of rest products as additive in tailings paste for the mitigation of ARD: Effect of green liquor dregs and fly ash addition on geotechnical stabilization of tailings
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.ORCID-id: 0000-0001-7585-4017
Vise andre og tillknytning
2012 (engelsk)Inngår i: Proceedings of the 8th International Conference on the Environmental and Technical Implications of Construction with Alternative Materials: WASCON 2012 Conference proceedings / [ed] M. Arm; C. Vandecasteele; J. Heynen; P. Suer; B. Lind, ISCOWA , 2012Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This study focuses on the effect of green liquor dregs (GLD) and fly ash (FA) on geotechnical stabilization of tailings, using shear strength test.The objectives were to evaluate thickening of tailings using GLD to paste to improve its water retention and to reduce waste percolation, to identify optimal proportion of additives regarding geotechnical stabilization of tailings, and to study the role of FA in the decrease of porosity and thus to reduce oxygen diffusion via hardening process.The results showed that GLD is a potential material for tailings stabilization by decreasing water percolation and improving water retention property. However, the paste of GLD amended tailings withstands low shear strength. The addition of FA to the paste greatly improves shear strength which is up to 2-3 times higher. Moreover, the fly ash hardening process effectively reinforces the strength of GLD amended tailings paste. Longer curing period (3 months) for specimens leads to up to 2-3 folds higher strength compared to that of 1 month. Hydraulic conductivity is reduced as a result of GLD and FA addition, since the porosity of the tailings decreased. If reduced porosity, improved water retention capacity and no cracks are ensured in the tailings, oxygen diffusion can be limited.

sted, utgiver, år, opplag, sider
ISCOWA , 2012.
HSV kategori
Forskningsprogram
Tillämpad geologi
Identifikatorer
URN: urn:nbn:se:ltu:diva-39465Lokal ID: e3de31c6-a1ca-4055-9e8c-956fe4369dd0OAI: oai:DiVA.org:ltu-39465DiVA, id: diva2:1012978
Konferanse
International Conference on Sustainable Management of Waste and Recycled Materials in Construction : 30/05/2012 - 01/06/2012
Merknad

Godkänd; 2012; 20120608 (yuojia)

Tilgjengelig fra: 2016-10-03 Laget: 2016-10-03 Sist oppdatert: 2018-01-12bibliografisk kontrollert

Open Access i DiVA

fulltext(193 kB)35 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 193 kBChecksum SHA-512
d79722775f6aa75921d41052465da6210721636ebca3dd16f9d619d5b3bf555bb945e28d0afd8b7b37c90bf69e8c053b938ccb9a69ddebe863647d4f1a13b3c1
Type fulltextMimetype application/pdf

Personposter BETA

Jia, YuMäkitalo, MariaMaurice, ChristianÖhlander, Björn

Søk i DiVA

Av forfatter/redaktør
Jia, YuStenman, DavidMäkitalo, MariaMaurice, ChristianÖhlander, Björn
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 35 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 75 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf