Dr. Gerrit Jordaan Completed His PhD At The University Of Pretoria (UP). He Has Been In Research And Private Practice For More Than 40 Years, Managing His Own Consultancy Company Since 2001. He Is An Extraordinary Professor At The Department Of Civil Engineering (UP) Where He Has Been Involved In Post Graduate Training And Research Since 1983. He Specializes In Road Pavement Rehabilitation Investigations And Design And Materials Utilization Using The Best Mineral Compatible Applicable Nanotechnology Solutions. He Has Authored Several User Manuals and Published More Than 50 Papers Internationally On These Subjects, and Worked, Trained and Lectured Throughout Sub-Saharan Africa