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ADDIS ABABA UNIVERSITY SCHOOL OF GRADUATE STUDIES INDEPTH INVESTIGATION OF RELATIONSHIP BETWEEN INDEX PROPERTY AND SWELLING CHARACTERISTIC OF EXPANSIVE SOIL IN BAHIR DAR by Dagmawe Negussie February 2007 Approved by Board of Examiners: Professor Alemayehu Teferra Advisor Dr. Mesele Haile Internal Examiner Dr. Hadush Seged External Examiner Ato Amsalu Gashaye Chairman ___________________________ _________________ ___________________________ ___________________________ Advisor: Professor Alemayehu Teferra By Dagmawe Negussie February 2007 2
DECLARATION I, the undersigned, declare that this thesis is my work and that all sources of material used for the thesis have been duly acknowledged. Name: Dagmawe Negussie Signature: Place: Faculty of Technology, Addis Ababa University, Addis Ababa. Date of Submission: February, 2007 3
Page 1: ADDIS ABABA UNIVERSITY SCHOOL OF GR
Page 5 and 6: List of Tables Page Table 1: Mean M
Page 7 and 8: List of Symbols A c = Activity ω l
Page 9 and 10: 1. Introduction 1.1 General Bahir D
Page 11 and 12: Recent Map of Bahir Dar Area Accord
Page 13 and 14: 1.4 Lithologic Units and Soils Resi
Page 15 and 16: 2. Literature Review 2.1 General Pl
Page 17 and 18: Soil water chemistry Soil water has
Page 19 and 20: 2.3.2 Direct Measurement This type
Page 21 and 22: 3. Identification of Soil in the St
Page 23 and 24: Location Color Depth Northing Easti
Page 25 and 26: Table 4. Atterberg and Shrinkage Li
Page 27 and 28: Swell Potential Plasticity Index Lo
Page 29 and 30: Location Depth Gs Tp4-1 1.5 2.78 Tp
Page 31 and 32: Location Depth Sand (%) Silt(%) Cla
Page 33 and 34: Location Depth ω 24 (%) Kebele 9 2
Page 35 and 36: Table 9 : Free Swell Test Results o
Page 37 and 38: For the study area the CEC is deter
Page 39 and 40: 4. Soil Classification Soil classif
Page 41 and 42: 100 Plastic Index (%) 80 60 40 20 0
Page 43 and 44: I ) Clay Content and Plasticity Ind
Page 45 and 46: 5 Determination of Swelling Pressur
Page 47 and 48: 5.1 Swelling Pressure and Index Pro
Page 49 and 50: 3 Log Sp (Kpa) 2 1 1 1.2 1.4 1.6 Dr
Page 51 and 52: 600.00 Swelling pressure (Kpa) 500.
Page 53 and 54:
6.1 Models Developed by Various Res
Page 55 and 56:
Table 13. Comparison of Previously
Page 57 and 58:
Using the above new equations the s
Page 59 and 60:
Equation 2 800 Calculated Value (Kp
Page 61 and 62:
Equation 6 Calculated Value (Kpa) 9
Page 63 and 64:
Conclusion and Recommendation 1. Th
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SCHOOL OF GRADUATE STUDIES FACULTY OF TECHNOLOGY ...

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