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Effect Of Phosphogypsum As A Waste Material In Soil Stabilization Of Pavement Layers

Submitted2014-11-04
Last Update2014-11-04
TitleEffect Of Phosphogypsum As A Waste Material In Soil Stabilization Of Pavement Layers
Author(s)Author #1
Author title:
Name: Sleiman M. Al-Zaidyeen
Org: Assistant Prof., Dept. of Civil Eng., Al Hussien Bin Talal University, Ma'an, Box 20, Jordan
Country:
Email: S.Hasanat@ahu.edu.jo

Author #2
Author title:
Name: Arabi N. S. Al-Qadi
Org: Assistant Prof., Dept. of Civil Eng., Al Hussien Bin Talal University, Ma'an, Box 20, Jordan
Country:
Email: arabi@ahu.edu.jo

Other Author(s)
Contact AuthorAuthor #1
Alt Email: s.hasanat@ahu.edu.jo
Telephone:
KeywordsPhosphogypsum, Soil stabilization, Proctor, Califorina Bearing Ratio (CBR), Pavement
AbstractThe aim of this research is to use phosphogypsum (PG) waste produced from phosphoric acid plants as a stabilization material to improve the properties of non-plastic soil, such as Aqaba soil in Jordan. The mixture formula of the material was optimized and the PG dosages 0%, 5%, 10%, 20% and 25% by weight of the soil sample were tested. The sieving and grading of the soil, Atterberg limit, dry unit weight, moisture content, Proctor and Califorina Bearing Ratio (CBR) were tested. It was concluded that 21% represented the optimum percentage of PG in all soil specimens, especially in Proctor and CBR tests for the red silty sand and gravel (A-2-4). This result also could influence the base, sub-base and sub-grade pavement layers to one pavement layer with less depth of its stabilization.
Paperview paper 2877.pdf (133KB)

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