vol25no4pa1

TJES: Al-Obaidi AA, Al-Ashoishi QAA. Application of Dynamic Cone Penetration Test to Gypseous Soils. Tikrit Journal of Engineering Sciences 2018; 25 (4): 1-5.

APA:  Al-Obaidi, A. A., Al-Ashoishi, Q. A. A. (2018).  Application of Dynamic Cone Penetration Test to Gypseous Soils. Tikrit Journal of Engineering Sciences, 25(4), 1-5.

 


KeywordsDynamic Cone Penetrometer (DCP), California bearing ratio (CBR), gypseous soil, penetration rate (PR).

Tikrit Journal of Engineering Sciences (2018) 25(4) 1- 5

Application of Dynamic Cone Penetration Test to Gypseous Soils

Ahmed A. H. Al-Obaidi Qudama A. A. Al-Ashoishi
Civil Engineering Department, College of Engineering, Tikrit University, Iraq.

DOI: http://dx.doi.org/10.25130/tjes.25.4.01
Abstract

Dynamic cone penetration test (DCPT) is a fast, economical and easy to conduct. It is widely used to assess the strength of natural and compacted soils. The device is introduced in the 1950s. However, it was newly introduced in Iraq. This study aims to evaluate the potentials of DCP in geotechnical explorations in the gypseous soil since it covers a large area of the country and to obtain correlations with the California bearing ratios (CBR) and investigating the effect of gypsum on the CBR-DCP relationship. Field and Laboratory tests were conducted on soil sample retrieved from six sites with different gypsum contents (28-41) %. Laboratory tests include performing CBR and DCP tests in a cylindrical mold. A statistical analysis of the results shows that gypsum content is an affecting factor on DCP and good CBR-DCP correlations on gypsum content were obtained.

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References

[1]     Ayers ME, Thompson, MR, Uzarski DR. Rapid shear strength evaluation of in situ granular materials. Transportation Research Record 1989: 1227.

[2]     Embacher RA, Duration of spring-thaw recovery for aggregate-surfaced roads, TRB. Annual Meeting. American Engineering Testing, Inc. 2005.

[3]     Karunaprema KAK, Edirisinghe AGHJ, A laboratory study to establish some useful relationship for the case of dynamic cone penetration. Electronic Journal of Geotechnical Engineering 2002; 7:.

[4]     Livneh, M. Validation of correlation between a number of penetration test and in situ California bearing ratio tests. Transportation Research Record 1219. Transportation Research Board 1987: 56-67.