ã Copyright 2007 designed by Jeremy Ingham. All rights reserved
Geomaterials Specialist, European Geologist, Chartered Geologist, Chartered Engineer, Chartered Scientist
Q: What are geomaterials?
A: Geologically derived materials used primarily in civil engineering and building construction, in both the unprocessed condition and as processed construction materials. Examples of geomaterials include:
• Building stone • Armourstone • Rock & soil fill • Aggregates • Cements & mineral additions • Concrete • Tarmac and asphalt • Clay bricks, terracotta & faience • Ceramic tiles • Mortars, plasters, renders • Floor screeds • Lime products • Adobe and cob • Natural paints • Industrial minerals
Q: What do geomaterials engineers and construction materials scientists do?
A: They apply geological and materials engineering knowledge to construction and civil engineering projects ranging from new building and infrastructure developments through to monitoring, maintenance, refurbishment and conservation of existing structures. They are involved in the full lifecycle of built assets with tasks typically comprising:
• Location of new construction material resources • Evaluation of materials proposed for use in construction • Routine quality control testing and monitoring during construction • Investigation of deterioration during service • Screening existing structures for potential problems • Monitoring repair and restoration programmes • Expert witness service
Clients include architects, engineers, specifiers, surveyors, commercial property owners/managers, domestic property owners, producers, manufacturers, contractors, government agencies and local authorities.
Q. What is a petrographic examination?
A: Petrographic examination is one of the most powerful investigative tools in the construction materials scientist's armoury. It involves using optical microscopes to examine thin-sections or polished surfaces of samples in the same way that geologists examine rock samples. The technique requires specialist equipment and staff with appropriate qualifications and petrographic experience. Through the microscope you can determine the identity of geomaterials and the extent and causes of deterioration. Photographs taken through the microscope provide compelling evidence for clients.
Further information regarding petrography of construction materials can be found within the various papers of the Publicatons Page.
