Australian Research Council Centre of Excellence Geotechnical Science and Engineering

Mr Dennis Alazigha


B Eng, MEng, MSc


  • 2010
    Master of Science in Engineering Geology, University of Newcastle upon Tyne, UK
  • 2009
    Master of Engineering in Mining Engineering, University of the Witwatersrand, Johannesburg, South Africa
  • 2000
    Bachelor of Engineering in Mining Engineering, Federal University of Technology, Nigeria


  • 2008
    Kontinental Group,Johannesburg, South Africa (part-time)
  • 2007
    University of Witwatersrand, Rock Mechanics Lab Demonstrator (part-time)
  • 2003
    Baz Nigeria Limited, Nigeria (part-time), to date
  • 2002
    Bayelsa State Government , Nigeria, to date

Research Interests

  • Laboratory Rock/Soil testing
  • Site Investigation
  • Use of waste materials in the construction industry
  • Chemical stabilization of soils


  • Dr Vinod Jayan Sylaja
  • Professor Buddhima Indraratna

Research Topic

Stabilization Mechanisms and Microstructural Modification of Expansive Clayey Soils using Lignosulfonate Admixture

Research Abstract

Expansive soils have been known to cause deterioration among all aspects of civil infrastructure for many years. Replacing these problematic soils is not a viable solution in that it is costly and time consuming. Chemical stabilizers (lime and cement) have proven to be an important tool in arresting the swell/shrink behavior of expansive soil. However, these traditional stabilizers pose environmental and engineering challenges, hence the quest for research into the use of a more environmental friendly chemical stabilizer known as lignosulfonate.