Geomaterials Research Services Limited is a specialist company providing advice and testing in connection with the investigation of the causes of failures in construction materials. Much of the work carried out by Geomaterials has been in the investigation of concrete deterioration. The staff at Geomaterials have worked on many important civil engineering projects throughout the UK and world wide including the Second Severn Crossing, Channel Tunnel, the Tsing Ma Bridge in Hong Kong, and the Great Man-made River in Libya. The company also has extensive experience in the investigation of concrete deterioration in the Middle East and Hong Kong involving a wide range of structures including desalination plants, petrochemical installations in the Middle East and multi-storey housing structures in Hong Kong.
Michael Eden is Managing Director of Geomaterials and a Chartered Geologist with more than fifteen years experience in the industry and has a background in materials investigation. He graduated with a BSc. in Geology from University College Cardiff in 1986 and attained an MSc in Geomaterials at Queen Mary and Westfield College in 1990. Michael Eden has been involved through the company in a wide range of important civil engineering projects as a materials consultant, including the Second Severn Crossing and the Channel Tunnel. He has recently been involved in conjunction with Halcrow Group in the investigation of concrete bridge foundations affected by thaumasite formation and has contributed as a consultant to the Report of the Thaumasite Expert Group.
Chris Kelly is Laboratory Manager and has 20 years experience as a laboratory manager and is an expert in thin section preparation and materials testing.



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