Estimated Correlation between California Bearing Ratio (CBR) with some Soil Parameters of Gypseous Silty Sandy soils, vol27no1pa8

TJES: Abdulnabi TY, Abdulrazzaq ZG .An Estimated Correlation between California Bearing Ratio (CBR) with some Soil Parameters of Gypseous Silty Sandy soils. Tikrit Journal of Engineering Sciences 2020; 27(1): 58- 64.

APA: Abdulnabi,  T. Y., Abdulrazzaq,  Z. G. (2020). An Estimated Correlation between California Bearing Ratio (CBR) with some Soil Parameters of Gypseous Silty Sandy soils. Tikrit Journal of Engineering Sciences, 27 (1), 58- 64.

References

[1] ASTM 4.08 and 4.09, Standard Test Method for Soil and Rocks, 2018, Philadelphia, PA, ASTM, USA. Copyright, ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.

[2] American Association of State Highway Transportation Officials AASHTO, Standard Method of Test for the California Bearing Ratio T193 -93 pp: 373-342.

[3] British Standard Methods of test for Soils for Civil Engineering Purposes BS 1377 Part 4 and In-situ tests Part 9, British Standard Institution.

[4] Dilip Kumar Talukdar. A Study of Correlation between California Bearing Ratio (CBR) Value with other Properties of Soil. International Journal of Emerging Technology and Advanced Engineering. 2014; 4(1): 559-562.

[5] Bindra, S.P.” A Course in Highway Engineering” 1991, Dhanpat Rai & Sons.

[6] Shirur NB, Hiremath SG. Establishing Relationship between CBR Value and Physical Properties of Soil. IOSR Journal of Mechanical and Civil Engineering 2014; 11(5): 26-30.

[7] Venkatasubramanian C, Dhinakaran G. ANN Model for Predicting CBR from Index Properties of Soils. International Journal of Civil and Structural Engineering, 2011; 2(2): 605-611.

[8] Al-Saffar AK, Hassoun AR. Best Fit Model to Estimate Relation between (CBR) and the Dry Density of Fine Grains Soils. Journal of Babylon University / Engineering Sciences 2014; 22(4): 797-802.

[9] 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.

[10] Al-Shakarchi YJ, Al-Busoda BS, Al-Taie AJ. California Bearing Ratio of Some Iraqi Dune Soils. Tikrit Journal of Engineering Sciences 2010; 17 (2): 1-8.

[12] Rakaraddi PG, Gomarsi V. Establishing Relationship between CBR With Different Soil Properties. International Journal of Emerging Technology and Advanced Engineering 2015; 4(2): 182-188.

[13] Zedan AJ, Abbas HH. Experimental Investigation of Square Footing Resting on Sand over Gypseous Soils. Tikrit Journal of Engineering Sciences 2020; 27(1): 30- 39.

[14] Abdulnabi TY, Abdulrazzaq ZG. Soil Investigation Report No.1/1/80 -2014 NCCL – Baghdad.

 

Tikrit Journal of Engineering Sciences (2020) 27(1) 58- 64.

An Estimated Correlation between California Bearing Ratio (CBR) with some Soil Parameters of Gypseous Silty Sandy soils

Taha Y..Abdulnabi *, Zena G..Abdulrazzaq 2

Ministry of Departments and Formations / National Center for Construction Laboratory (NCCL) , Iraq

* Corresponding author: tahayasen58@yahoo.com  

DOI: http://dx.doi.org/10.25130/tjes.27.1.08

Abstract

California Bearing Ratio (CBR) value represents the main soil characteristic factor for paving design of flexible pavements & paving of airport sites. It should be used to determine subgrade modulus of crust soil layer, by using certain correlations. It is a very important engineering parameter for soil condition for design of subgrade of flexible roads. CBR values of soil may be affected by other parameters, like maximum dry density (MDD) & optimum moisture content (OMC), soil types, (coarse material of gravel and sand content), etc. for un-soaked condition of samples. Evaluation of CBR in direct test is a time waste process. This case study was conducted to find out the relationship between CBR values with MDD, ‎OMC,‎ standard penetration test (SPT) and coarse material content of some soil samples collected from the investigated project during 2011 with approximate area about (30) Km2, with Latitude (32.319810o -32.412226o) and Longitude (44.144141o – 44.243775o). A statistical method was used for estimating the relationship between the CBR and MDD, OMC, standard penetration test (SPT) and coarse material content of the soil desiring to obtain a relationship and a formula combining the previous two variables. A reasonable relationship represented by first degree formula was obtained. On the other hand, the time and efforts will be minimized in estimation of CBR instead of the used processing to determine the soil parameter‎.

Full Text PDF
466 Downloads

Keywords: CBR, Silty sandy soils, Gypseous soils, OMC, MDD

Related Articles

 

Loader Loading...
EAD Logo Taking too long?
Reload Reload document
| Open Open in new tab

Download [622.77 KB]