Prof. Samuel Innocent Kofi Ampadu

Professor

Dept: Civil Engineering
PB 28
College of Engineering
KNUST
Kumasi
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Publications

    1. Ampadu S., Arthur T., Ackah P., Boadu F. (2021): Construction and monitoring of the short-term strength development of a cement-stabilized lateritic pavement layer under tropical climatic conditions 4th ICTG, May 24 - 27, 2021, ISSMGE-TC 202
    2. Arthur T, Ampadu S., Gawu S. (2021), The potential of quartzitic rock for use as coarse aggregates in asphaltic concrete: 4th ICTG, May 24 - 27, 2021, ISSMGE-TC 202
    3. Fred Kofi Boadu and Samuel Ampadu, (2019) Assessing Relations Between Electrical and Geotechnical Properties of Sand-Clay Mixtures Using Jonscher Fractal Power Law Model, Journal of Environmental and Engineering Geophysics, Vol 24, Issue 1, pp 75-83
    4. Ampadu SIK, Ayeh FFJ and Boadu F (2018), Deriving SPT N-values from DCP Test Resuts: The case of Foundation Design in a Tropical Environment, Geotechnical and Geological Engineering, August 2018, Volume 36 Issue 4, pp 2517-2531
    5. Ampadu SIK, Ackah P, Owusu Nimo F, Boadu F (2017), A laboratory study of horizontal confinement effect on the dynamic cone penetration index of a lateritic soil in the laboratory. Transportation Geotechnics 10, 47-61
    6. Ampadu SIK and Fiadjoe, G.Y. (2015), The influence of water content on the dynamic cone penetration index of a lateritic soil stabilized with various percentages of quarry by-product, Transportation Geotechnics 5(2015) 68-85
    7. Stephen Agyeman and Samuel I.K. Ampadu, (2015), Exploring the techno-economic feasibility of mine rock waste utilisation in road works: The case of a mining deposit in Ghana, Waste Management and Research 1-9, DOI 10.1177/0734242X15611739
    8. Ampadu S.I.K. and Addison F.K. (2015), A comparison between the life cycle cost of gravel and of bituminous surfacing options for feeder roads in Ghana, International Journal of Pavement Engineering, DOI: 10.1080/10298436.2015.1065990
    9. Fred Kofi Boadu, Frederick Owusu-Nimo, Francis Achampong and Samuel I. K Ampadu, (2013), Artificial neural network and statistical models for predicting the basic geotechnical properties of soils from electrical measurements, Near Surface Geophysics, 2013, 11, doi: 10.3997/1873-0604.2013011
    10. Ampadu, S.I.K. and Ayeh, F.J.F. (2012), The early performance of a full scale otta seal trials on a rural road in Ghana, International Journal of Pavements, ISSN 1676-2797, IJP 2012, Vol. 11 Number 1-2-3- ISSN 1676-2797, pp. 69-82
    11. Ampadu, S.I.K. and Arthur, D.T. (2006): “The Dynamic Cone Penetrometer in Compaction Verification on a Model Road Pavement”. Geotechnical Testing Journal GTJ 162006291, January 2006
    12. Ampadu, S.I.K. (2005): A Statistical Model for Predicting the Cost of Unpaved Feeder Road Maintenance Intervention- The case of Ghana. Ghana Institution of Engineers Journal, December 2005
    13. Ampadu, S.I.K. (1999): How slow is labour-based technology compared with equipment-intensive technology?- The case of feeder road construction in Ghana.- Urban Forum Volume 10 No. 1 ISSN 10153802 Witwatersrand University Press
    14. Ampadu, S.K. and Tatsuoka, F., 1993: “Effect of setting method on the behaviour of clays in triaxial compression from saturation to undrained shear” Soils and Foundations, Vol. 33, No. 2, 14-34, June 1993.
    15. Ampadu, S.K. and Tatsuoka, F., 1993: “A Hollow cylinder torsional simple shear apparatus capable of a wide range of shear strain measurement.” ASTM Geotechnical Testing Journal, GTJODJ, Vol. 16, No. 1, pp. 3-17, March 1993
    16. Ampadu, S.K. and Tatsuoka F., 1992: Discussion on “Measurement of soil strength in simple shear tests” by J.H. Atkinson, W.H.W. Lau and J.J.M. Powel, Canadian Geotechnical Journal, Vol. 28, 255-262. Canadian Geotechnical Journal, Vol. 29, No. 5 Oct. 1992
    17. Ampadu S. and Tatsuoka, F. 1989: “An Automated Stress-Path Control Triaxial System”, ASTM Geotechnical Testing Journal, GTJODJ, Vol. 12, No. 3, 238-243, Sept. 1989.
    18. Ampadu, S.I.K. and Arthur, D.T. (2006): “The Dynamic Cone Penetrometer in Compaction Verification on a Model Road Pavement”. Geotechnical Testing Journal GTJ 162006291, January 2006
    19. Ampadu, S.I.K. (2005): A Statistical Model for Predicting the Cost of Unpaved Feeder Road Maintenance Intervention- The case of Ghana. Ghana Institution of Engineers Journal, December 2005
    20. Ampadu, S.I.K. (1999): How slow is labour-based technology compared with equipment-intensive technology?- The case of feeder road construction in Ghana.- Urban Forum Volume 10 No. 1 ISSN 10153802 Witwatersrand University Press
    21. Samuel I.K. Ampadu and Joseph Oddei? (2017), A field investigation of confinement effect on dynamic cone penetration index of a lateritic soil, 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 17-22 September, Seoul, Korea 2017
    22. Boadu, D.S., Ampadu, S.I.K., Bempong K., Amoah-Bekoe, P., (2017), The Use of a Geo-composite for Pavement Construction on Expansive Subgrade - The Case of the Tema Motorway Roundabout Project, 3rd African Regional Geosynthetic Conference - GeoAfrica 2017, Marraekech, Morocco 8–11 Octobre 2017
    23. Ampadu S.I.K., Lawer A and Anochie-Boateng, K. 2015, Forensic analysis of asphaltic pavement failures in Ghana-case histories, Proceedings, 11th Conference on Asphalt Pavements for Southern Africa (CAPSA), 16-19 August, 2015, Sun City, South Africa
    24. Ampadu, S.I.K, Ackah P., Owusu-Nimo F., Ayeh, F.J.F. (2015), The Effect of pretreatment on index and compaction properties of a lateritic gravel, Proceedings, 16th African Regional Conference on Soil Mechanics and Geotechnical Engineering, 27-30 April 2015, ISBN 978-9938-12-936-6 Tunisia, Eds. Bouassida, M. Khemakhem M and Haffoudhi, S. E., pp. 553-560
    25. Ayeh, F.J.F., Ampadu S.I.K., Owusu-Nimo F., Boadu, F. and Lawer A. K. (2015), A laboratory investigation of the effect of used oil contamination on the direct shear behaviour of a lateritic soil, Proceedings, 16th African Regional Conference on Soil Mechanics and Geotechnical Engineering, 27-30 April 2015, ISBN 978-9938-12-936-6 Tunisia, Eds. Bouassida, M. Khemakhem M and Haffoudhi, S. E. pp. 567-572
    26. Ampadu, S.I.K. and Amo-Bediako, J. (2013) The Use of Geotextile for Highway Embankment Construction on Soft Ground-The case of the Oforikrom-Asokwa Bypass Project in Ghana, Proceedings, 2nd African Regional Geosynthetic Conference, Accra Nov 18-20
    27. Ampadu, S.I.K, Ayeh, F.J.F, Ashong E.N.K. and Asiedu J.O. (2011), Investigation into a labour-friendly alternative surfacing technique for feeder roads in Ghana, 14th ILO Regional Seminar for Labour-based practitioners, Eds., Salifu M. and Agyekum P., 5th-9th September 2011, Accra, pp. 326-350.
    28. Ampadu, S.I.K, Diabene B.O., Brentuo K. (2011), Construction equipment financing for small scale contractors- the case of Ghana, Proceedings 14th ILO Regional Seminar for Labour-based practitioners, eds. Salifu M. and Agyekum P. 5th-9thSeptember 2011, Accra
    29. Ampadu, S.I.K. and Okang, E.K. (2011), Correlation between the dynamic cone penetration index and the falling weight deflectometer-determined subgrade resilient modulus, Proceedings 15th African Regional Conference of the International Society of Soil Mechanics and Geotechnical Engineering, IOS Press ISBN 978-1-60750-777-2, eds., Quadros C. and Jacobsz S.W. (Eds), Maputo, Mozambique, July 18th -21st. pp 446-452
    30. Ampadu, S.I.K. and Awuku-Dzitse D. (2009), Model test for bearing capacity in a lateritic soil and implications for the use of the dynamic cone penetrometer, 17th International Conference on Soil Mechanics and Geotechnical Engineering, Alexandria, Egypt, October 5-9th. Hamza (Eds) pp 1095-1099
    31. Ampadu, S.I.K. (2007), An investigation into the effect of water content on the direct shear strength characteristics of remoulded soil, 14th African Regional Conference of the International Society of Soil Mechanics and Geotechnical Engineering, Yaounde, Cameroun, 26-28th November 2007,
    32. Ampadu, S.I.K. (2006), A laboratory investigation into the effect of water content on the CBR of a subgrade soil, 2ndInternational Conference on Mechanics of Unsaturated Soils, Bauhaus Universität Weimar, Germany, 7-9th March 2006, Experimental Unsaturated Soil Mechanics, Springer Proceedings in Physics 112, T. Schanz (Ed), ISSN pp. 137-144
    33. Ampadu, S.I.K. (2005), “A correlation between the Dynamic Cone Penetrometer and the bearing capacity of a local soil formation”. Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering, September 12-16th Osaka, Japan. Millpress Science Publishers, Rotterdam, Netherlands
    34. Ampadu, S.K. (2005). Expanding the application of Labour-Based Methods–the Potential of Urban Paving” IX Regional Seminar for Labour-Based Practitioners, 2-8th October 2005, Mombasa, Kenya
    35. Ampadu S. K., hMensa Martin , Ashong  N.K. and  Danso H. (2003)  “Labour-based technology in feeder road rehabilitation  and poverty reduction- The Ghana Experience”  Proceedings X Regional Seminar for Labour-Based Practitioners, Tanzania, October 11-18th
    36. Ampadu, S.K. (2002) “ The Effect of Some Economic and Contract Conditions on Labour-Based Contracting –Lessons from Ghana” XI Regional Seminar for Labour-Based Practitioners, 19-24th May, 2002, Maputo-Mozambique
    37. Ahiamadi, S.K. and Ampadu, S.I.K (2002) The engineering properties of bitumen emulsion stabilized road base natural gravel material. “Proceedings, Second School of Engineering Research Retreat. Elmina, August, 2002
    38. Ampadu, S.I.K and Arthur, TD, (2002) A study of compaction on a model road pavement built with unstable tropical gravel. “Proceedings, Second School of Engineering Research Retreat. Elmina, August 2002.
    39. Ampadu, S.I.K and Ahiamadi S.K. (2002): “A laboratory estimation of the effectiveness of bitumen emulsion stabilization against rainfall induced erosion on a model gravel pavement”. Proceedings, 5th International Conference on Structural Engineering Analysis and Modeling, Vol 2, Engineers’ Centre, Accra 26-28th February 2002
    40. Ampadu, S.I.K (2001) “The cost of Feeder Road Construction- The case of Ghana” Proceedings of First International Conference on Employment Creation in Development-Work 2001. April 2-5, 2001, University of Witwatersrand, Johannesburg RSA
    41. Ampadu, S.I.K (1998): Laboratory investigation of the effect of soaking on strength characteristics of local soils” Proceedings of the International Symposium on Problematic Soils IS-Tohoku Sendai Japan 28-30 October 1998 ISBN 9054109971
    42. Ampadu, S.I.K (1997): The compaction characteristics of residual soils. Proceedings, 3rd International Conference on Structural Engineering Analysis and Modeling, SEAM 4 , Engineers’ Centre, Accra 7-11th September, 1997
    43. Ampadu, S.I.K and Acquaah V.K.A. (1997): The influence of sampling method on strength and deformation characteristics of decomposed phyllites 3rd International Conference on Structural Engineering Analysis and Modeling, SEAM 4, Engineers’ Centre, Accra 7-11th September, 1997
    44. Ampadu, S.K. and Tuffour Y.A. (1996): “A study of the field performance of selected labour-based contractors in Ghana”- Proceedings 5th Regional Seminar on Labour-based Roadworks, Accra, Ghana, April 22-27, 1996.
    45. Ampadu, S.K. (1996): “Effect of soaking on strength and deformation of a local soil” - 27th Annual General Meeting and Conference of Ghana Institution of Engineers, Technical Session, Accra, March 29-30, 1996
    46. Ampadu, S.I.K., (1995): “Effect of Molding Water Content on Strength and Deformation Characteristics of Decomposed Granite in Direct Shear”, Proceedings, 11th African Regional Conference on Soil Mechanics and Foundation Engineering. Cairo, Egypt. 11-15, Dec. 1995, pp 383-406
    47. Ampadu, S.K. and Tuffour Y.A. (1995): “Sustaining Labour-based Technology in Ghana: The contribution of the School of Engineering”-Proceedings 4th Regional Seminar on Labour-based Roadworks, University of Witwatersrand, Johannesburg, South Africa, January 16-20, 1995; ILO CTP 140, pp. 218-230.
    48. Toyosawa, Y., Horii, N., Tamate, S. Hanayasu S. and Ampadu, S.K. (1994): “Deformation and failure characteristics of vertical cuts and excavations in clay”, Proceedings of the International Conference, Centrifuge ‘94, Singapore, 31 Aug. -2 Sept., 1994, pp. 663-668. Edited by C.F. Leung, F.H. Lee and T.S. Tan, Balkema, Rotterdam, ISBN 9054103523
    49. Horii, N., Toyosawa, Y. Tamate, S. and Ampadu, S.K. (1994): “Undrained shear characteristics of a soft clay after cyclic loading.” Proceedings, International Conference on Pre-failure Deformation of Geomaterials, Hokkaido, Japan. pp. 113-118, Edited by Shibuya, Mitachi and Miura. Balkema, Rotterdam, ISBN 905410399X.
    50. Ampadu, S.K., Horii, N., Toyosawa, Y., Tamate, S. (1994): “A soft clay under strain controlled cyclic loading”, Proceedings, 29th National Convention of Japanese Society of Soil Mechanics and Foundation Engineering, (JSSMFE), July 1994.
    51. Ampadu, S.I.K. (1993) “The stress-strain curve of a soft clay over a large strain range”, Proceedings, 3rd International Conference on Structural Engineering Analysis and Modeling, SEAM 3. pp. 667-, Kumasi, Ghana 28-29 July, 1993.
    52. Ampadu, S.K. and Tatsuoka, F. (1991). “Overconsolidated kaolin in torsional simple shear”. Proceedings 26th National Convention of Japanese Society of Soil Mechanics and Foundation Engineering, (JSSMFE), Nagano July 1991.
    53. Ampadu, S, and Tatsuoka, F., (1990): “Effect of consolidation stress path on undrained simple shear behaviour of kaolin” 25th National Convention of Japanese Society of Soil Mechanics and Foundation Engineering, (JSSMFE), Okayama, Japan 1990.
    54. Ampadu, S. and Tatsuoka F. (1989): “The dry versus the wet methods of setting clay specimens for triaxial compression.” Proceedings, 24th National Convention of Japanese Society of Soil Mechanics and Foundation Engineering, (JSSMFE), Tokyo, Japan.
    55. Mukabi J. Ampadu, S. and Tatsuoka, F. (1989): “Small strain behaviour of undisturbed Tokyo bay clay in triaxial compression”, Proceedings, 24th National Convention of Japanese Society of Soil Mechanics and Foundation Engineering, (JSSMFE), Tokyo, Japan.
    56. Ampadu, S and Tatsuoka, F., (1988): “The influence of initial shear on the undrained behaviour of normally consolidated kaolin” Proceedings, 23rd National Convention of Japanese Society of Soil Mechanics and Foundation Engineering (JSSMFE), Miyazaki, Japan.
    57. I.K. Ampadu (2013), Laterite –A stable or Unstable Tropically Weathered Soil? Geo-Strata Magazine, ASCE January/February pp. 46-50
    58. I.K. Ampadu (2015), Making Engineering Education relevant to Development Challenges-The experience of KNUST in the Engineering in Society Project, 6th Regional Conference of Vice Chancellors, Provosts and Deans of Science, Engineering Technology, COVIDSET 2015, University Education and Training in Science, Engineering and Technology in Africa-Post 2015, University of Nigeria, Nsukka, October 5-7th 2015
    59. I.K. Ampadu (2015), Industry-Academia Partnership for Capacity Building in Oil and Gas-The case of KNUST, 23RDFIDIC-GAMA Conference “Developing and Sustaining Africa’s Infrastructure: Promoting African Consulting Engineering Partnerships”. Movenpick Hotel, Accra, Ghana, April 12–15,
    60. Ampadu S.I.K. (2015), Emerging Engineering Education Post 2015, High-Level Dialogue of African Ministers and Legislators on Mobilising Science for Accelerating the Sustainable Development Goals Post 2015, 7th - 8th July 2015, La Palm Beach Hotel, Accra, Ghana,
    61. I.K. Ampadu, (2011) Setting the Scene:-Up-scaling Labour-based approaches, Reiew of Progress since Kampala 2009, 14th ILO Regional Seminar for Labour-based practitioners, Internaational Conference Center, Accra Ghana 5-9thSeptember 2011
    62. I.K. Ampadu, (2011) A Partnership for Training Transportation Engineers- The case of the Road and Transportation Engineering Programme at KNUST, COVIDSET 2011 Harnessing Africa’s Scientific, Engineering and Technology Innovation for Sustainable Development, The Role of Universities, - Birchwood Hotel, Johannesburg, 23-25 November 2011
    63. Ampadu, S.I.K (2002) “Lessons from the compaction of pavement layers in Ghana” Proceedings of Second International Focus Group on Rural Roads, Hotel Novotel, Accra Ghana  28th Oct-1st 2002, 
    64. Ampadu, S.I.K and Ahiamadi (2002) “The potential for using bitumen emulsion stabilization to reduce rainfall induced erosion on a gravel pavement ” Proceedings of Second International Focus Group on Rural Road, Accra Ghana  Hotel Novotel,  28th Oct-1st 2002
    65. Ahiamadi, S.K. and Ampadu, S.I.K (2002) The engineering properties of bitumen emulsion stabilized road base natural gravel material. “Proceedings, Second School of Engineering Research Retreat. Elmina, August, 2002
    66. Ampadu, S.I.K and Arthur, TD, (2002)  A study of compaction on a model road pavement built with unstable tropical gravel. “Proceedings, Second School of Engineering Research Retreat. Elmina, August, 2002.

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