Publikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Compaction and Design of Gypsiferous Fill for Hot Desert Road Pavements
Al-Nahrain University.
Al-Nahrain University.ORCID-id: 0000-0003-0478-1150
Al-Nahrain University.
2011 (Engelska)Ingår i: Proceedings of the Institution of Civil Engineers: Construction Materials, ISSN 1747-650X, E-ISSN 1747-6518, Vol. 164, nr 1, s. 3-11Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A comparative study between a homogeneous road embankment constructed of gypsiferous soil and compacted throughout its full height at the dry optimum moisture content (DOMC) and an exactly similar embankment but with improved active zone (top 50 cm of the embankment compacted at the wet optimum moisture content WOMC), is presented. Two soils A and B were examined. Soil A was sandy lean clay (CL) containing about 35% total soluble salt (TSS) of which 33% was gypsum; soil B had a 28% TSS and a gypsum content of 25·6%. California bearing ratio (CBR) soil samples, prepared at DOMC and WOMC for soil A and at WOMC for soil B, showed serious reductions in soil strength and stiffness due to soaking, especially when the soil had been compacted at DOMC. A soaking period of 4 days was considered very reasonable and conservative for hot dry regions. Swelling of the soil during soaking was observed, especially when the soil was compacted at DOMC. For pavement design, it appears to be more economical to introduce an active zone compacted at WOMC instead of DOMC. The cost of the additional water required for compaction at WOMC instead of DOMC is much less than the savings in cost of sub-base material due to increased subgrade soil strength. It is concluded that the gypsiferous soil which occurs widely in the Middle East can be used to build embankments for hot desert road pavements.

Ort, förlag, år, upplaga, sidor
2011. Vol. 164, nr 1, s. 3-11
Nyckelord [en]
Gypsum, Soil, Fill (embankment), Moisture content, Variability, Strength, Stiffness, California bearing ratio
Nationell ämneskategori
Infrastrukturteknik
Forskningsämne
30 Road: Highway design, 32 Road: Pavement design
Identifikatorer
URN: urn:nbn:se:vti:diva-13210Scopus ID: 2-s2.0-79551611304OAI: oai:DiVA.org:vti-13210DiVA, id: diva2:1241265
Tillgänglig från: 2018-08-23 Skapad: 2018-08-23 Senast uppdaterad: 2018-11-19Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Scopus

Personposter BETA

Kuttah, Dina K

Sök vidare i DiVA

Av författaren/redaktören
Kuttah, Dina K
I samma tidskrift
Proceedings of the Institution of Civil Engineers: Construction Materials
Infrastrukturteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 6 träffar
RefereraExporteraLänk till posten
Permanent länk

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