Erik Denneman is a Global Technical Manager - Puma Bitumen at Puma Energy. He possess expertise in pavement engineering, civil engineering, road, geotechnical engineering, engineering and 12 more skills. Colleagues describe him as "Dr Erik Denneman was employed as a Principal Researcher at CSIR Built Environment from 1 July 2005 to 30 April 2012. He was mainly involved in research, development and implementation (RDI) activities in the field of asphalt and concrete road pavement materials. I found Erik to be a highly professional individual, providing not only high-level technical input and direction into often complex RDI projects and programmes, but also by providing technical leadership to the industry at large and mentorship to younger colleagues. He is a person of great integrity with high moral values. He is a team player, not only with respect to staff within the organisation, but also through his ability to involve members of industry in the execution of RDI activities. He is an outgoing person, who easily interact with peers as well with senior managers/directors in the industry, both nationally (e.g. the Southern African Bitumen Association, the South African National Roads Agency) and internationally (e.g. The California Department of Transportation and the University of California at Davis and Berkeley). His outputs were always of the highest quality. During his tenure at the CSIR, Erik has made major contributions to the advancement of pavement engineering in South Africa, particularly in the fields of material design and performance, including but not limited to: introducing the concept of fracture mechanics in both bituminous-bound and cementitious materials; development and implementation of high-modulus asphalt mixes as a means to extend the life of flexible pavements; the development of mechanistic models for permanent deformation of asphalt as part of the development of a new South African pavement design method; and setting the framework for a new South African performance-related asphalt mix design method. I hold Erik in my highest regards and would have no hesitation in reemploying him in future."