Dr Greg Arnold is Asco Asphalt Technical Services and Development Manager. With a doctorate in Civil Engineering from the University of Nottingham in the UK and 30 years experience in pavement materials and design. Prior to his appointment with Asco this year Greg has worked in various technical roles for Waka Kotahi, Pavespec Ltd and Road Science. Greg is a current member of the National Pavement Technical Group and Austroads Pavements Research Group.

Steven Anderson is an Operations and Technical Manager with Geotechnics Ltd. Steve started with Geotechnics in a fixed term role, as a junior technician crushing concrete cylinders on a project, while on site Steve added fresh concrete, grout and aggregate tests to his experience. When the project finished Steve was offered a fulltime role based in Auckland performing soil tests in both the laboratory and field. During his time based in Auckland he has worked on many projects, building his geotechnical and construction materials testing knowledge. Steve was actively involved in the establishment of CETANZ and has been a long term committee and technical working group member.

Pritpal Singh Originally from India Came to New Zealand as an International Student to Study Civil Engineering. Qualifications - Diploma in Engineering ( Civil ) and Bachelor in Civil Engineering Worked in Material testing Laboratories for 14 years Worked for organizations below – • Stevenson – Lab Technician • Fulton Hogan – Section Head • Tetra tech Coffey - Senior Geo Technician • Construction Sciences - Engineering Technician Manager • BECA Ltd - Lab Team leader Experienced in working with Various types of construction materials such as Asphalt, Bitumen, Aggregates and Soils. Involved in projects such as: Auckland Airport Taxiway Lima , Lincoln Road Interchange ( West Auckland ) ,Causeway alliance State Highway 16 ( West Auckland ) and recently completed major NZTA Transmission Gully Project in Wellington where I lead a team of Pavement testing Technicains.