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:: Volume 15, Issue 2 (9-2021) ::
2021, 15(2): 13-16 Back to browse issues page
Estimating Dispersibility Potential of Soil and its Stabilization by Nano Cellulose
Nasrin Zare Junaghani, Hamid Mehrnehad *1, Mohammad Mehdi Khabiri, Sara Srfraz
1- , Hmehrnahad@yazd.ac.ir
Abstract:   (753 Views)
Existence of sodium elements in fine-grained of some soils causes dispersive phenomenon in them.  Failure to accurately identify dispersive clays leads to damage because dispersive clay soil particles disperse under certain conditions and wash away quickly. This research assesses dispersive degree of outcropped soils in southeast of Yazd. Finally, the modification of soil dispersive potential was investigated by using nanocellulose.  After performing a series of physical, chemical and mechanical tests, characterization/ specification of the studied soils were determined. Then dispersive degree was specified by conducting chemical, pin hole, crumb and double hydrometer tests. Finally, soil dispersivity stabilization was performed using sample preparation with 0.5, 1 and 1.5% nanocellulose. The results showed that the studied soils have moderate dispersive in borehole A and extreme to slightly dispersive in borehole B. Therefore, it can be concluded that the closer we get to the center of the plain, the greater the dispersibility. The results of the dispersibility stabilization soil tests indicate that the optimum moisture content and dry specific gravity increases and decreases. Uniaxial strength and CBR increases. Also, it shows that the increase in nanocellulose has a positive effect on the modified samples and improves the soil dispersibility in this area../files/site1/files/152/%D8%B2%D8%A7%D8%B1%D8%B9.pdf
 
Keywords: Southeast of Yazd, Mechanical characteristic, Dispersibility degrees, Rating system.
Full-Text [PDF 1633 kb]   (177 Downloads)    
Type of Study: s | Subject: Geotecnic
Received: 2020/09/20 | Accepted: 2021/01/5 | Published: 2021/09/1
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Zare Junaghani N, Mehrnehad H, Khabiri M M, Srfraz S. Estimating Dispersibility Potential of Soil and its Stabilization by Nano Cellulose. Journal of Engineering Geology. 2021; 15 (2) :13-16
URL: http://jeg.khu.ac.ir/article-1-2972-en.html


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Volume 15, Issue 2 (9-2021) Back to browse issues page
نشریه زمین شناسی مهندسی Journal of Engineering Geology
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