Concrete Society
The Concrete Society is a UK based non-profit company founded in 1966 in response to the need for an organisation embracing those interested in concrete.
- Date
- 09 March 2026
- Time
This event has now ended
Overview
The presentation will explain the chemistry of Microbiologically Induced Corrosion (MIC), or Biogenic Corrosion, in large diameter sewer tunnels and infrastructure and the approaches being adopted around the world to resist this concrete deterioration in new sewer infrastructures.
The presentation will incorporate the author’s experiences of conducting tests and advising on concrete mixes for MIC resistant concrete in the Deep Tunnel Sewer System (DTSS), Phase 2 project in Singapore, the Central Interceptor Tunnel (CIT) in Auckland, New Zealand and the Dubai Strategic Sewer Tunnels (DSST), UAE.
The results of extensive testing have indicated the exceptional performance in resisting MIC of a particular type of cement-free geopolymer concrete called Earth Friendly Concrete (EFC) that has been developed in Australia over the past 15 years.
Speakers
Charles Allen
OTB Concrete
director
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Charles Allen
Charles is a leading specialist in concrete engineering and construction materials with over 50 years experience. His experience includes the use of concrete for civil, building and tunnelling applications.
After a number of years working in the construction chemicals industry in Hong Kong, Singapore and Dubai, in 2000 he was appointed of Managing Director of the International Centre for Geotechnics and Underground Construction based in Zurich, a foundation responsible for the training and qualification of staff for tunnelling projects.
More recently, Charles has been involved as a consultant to a number of different organisations within the civil engineering and tunnelling sectors and has recently been advising joint venture contractors on the Deep Tunnel Sewer System, Phase 2 project in Singapore, the Central Interceptor Tunnel in Auckland, New Zealand, the Sydney Metro to West Sydney Airport railway, Australia and the Thames Tideway project.
Charles is a fellow of the Concrete Society and a member of the Institute of Concrete Technology.
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