چکیده مقاله
Due to their high buffering potential and very low permeability, cohesive soils are frequently used as water proof elements in landfill projects However, stabilization of such clayey barriers has been a major issue in adapting cost effective methods to enhance soil stability Therefore, it was deemed worth investigating the effect of Di Ammonium Phosphate DAP solutions compromised the majority part of phosphorus fertilizers to improve geotechnical properties of Hamedan’s clayey landfill barrier located in the west part of Iran A series of contaminated specimens were prepared by mixing sampled clays with industrial DAP in concentrations ranging from 0 01 to 0 1mole/l The conventional geotechnical experiments such as compaction, unconfined compressive strength, and direct shear box were then performed Findings indicate that: Increasing phosphorus ion concentration in the specimens improves Cohesion by 24% , and unconfined compressive strength by 12% , and decrease internal friction angle by 11 78% and maximum dry density by 1 5% Accordingly it could be deduced that leaching phosphorus ion through landfill blanket has a noticeable effect on the stability of the Hamedan’s landfills
کلیدواژهها
نویسندگان
B. Khoraminezhad
Postgraduate student
M. R. Alavi Moghaddam
Assistant professor
H. O. Bayat
Associate professor, Department of Civil and Environmental engineering, Amirkabir University of Technology, Tehran ۱۵۸۷۵ ۴۴۱۳, Iran
شیوه ارجاع
Khoraminezhad, B. and Alavi Moghaddam, M. R. and Bayat, H. O.,1388,Stabilizing Landfill Clays with Phosphorus Treatment; A case study,8th International Congress on Civil Engineering,Shiraz
ارائهشده در
مجموعه مقالات هشتمین کنگره بین المللی مهندسی عمران21 اردیبهشت 1388 · شیراز