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ICDC 2012 - International Congress on Durability of Concrete 2012

Congress Program and Topics for ICDC2012.

FINAL CONGRESS PROGRAM FOR ICDC2012 IS READY, click here!

 



ICDC-prog.-bilde.jpg

TECHNICAL PROGRAMME

In order to ensure its objectives the congress addresses all factors affecting the durability of concrete structures divided into the following main topics:

• Durability of sustainable cement and concrete
• Durability enhancing concrete admixtures
• Additions for enhanced durability of concrete
• Concrete deterioration mechanisms
• Methodology for testing durability
• Treatment of existing concrete structures
• Principles of making durable concrete structures
• Durability of off-shore concrete structures like
• Sustainability
• Modelling and calculating durable materials and degradation processes

 

FIELD TRIP
The field trip will include two of the construction sites ( Møllenberg and Strindheim) of the "E6 Trondheim-Stjørdal" project, which will establish a new main approach route to the eastern part of central Trondheim, as a part of the ring-road system around the city. The concrete works include low heat, highly chloride resistant concrete including high dosages of fly ash.

The principal elements of the Trondheim part of the project are:

- New lift bridge over the Nidelva River
- 2 km long 4-lane rock tunnel (two 9.5 metre wide bores) in a densely populated area. In addition there will be about 1.5 km of single-lane ramp tunnels (7 metres wide)
- A concrete tunnel to the west (Møllenberg) is to be constructed in a highly challenging hollow containing uncompacted material
- Three-level intersection at Strindheim
- Extension of Bromstadvegen across the railway to Håkon VII's gate (both city streets)
- Environmental measures on Innherredsvegen (a section of the excisting E6)

Links:
http://www.vegvesen.no/_attachment/62618/binary/16873
http://www.youtube.com/user/E6TrondheimStjordal  (videos)




In order to ensure its objectives the congress addresses all factors affecting the durability of concrete structures divided into the following topics;


Durability of sustainable cement and concrete
Sustainable cements are cements made with less energy consumption, less emission of greenhouse gases and less consumption of virgin raw materials than ordinary Portland cement and include
• Binary blended cements
• Ternary blended cements
• Sulphoaluminate-belite cements
• Sulphoferrite-belite cements
• Alkali activated binders
• Any inorganic binder

 


Durability enhancing concrete admixtures
Concrete admixtures are any material added to concrete < 5% of cement mass exemplified by
• Plasticizers for reduced water content and porosity
• Air entrainers for frost resistance
• Hydrophobizing agents
• Corrosion inhibitors preventing rebar corrosion
• Lithium compounds mitigating AAR



Additions for enhanced durability of concrete
Additions are any material added to concrete in typical dosages > 5% of cement mass exemplified by
• Blast furnace slag
• Fly ash
• Silica fume
• Metakaolin
• Any other supplementary cementing material or pozzolan

 


Concrete deterioration mechanisms
Mechanisms and modelling of for instance
• Chloride ingress, chloride initiation and propagation of corrosion of rebars
• Carbonation
• Alkali aggregate reactions
• Sulfate attack (e.g. Ettringite, Thaumasite)
• Delayed Ettringite formation
• Freeze/thaw attack
• Ice abrasion


Methodology for testing durability
Accelerated test methods for concrete durability and the relation between laboratory tests and field exposure for all preceding concrete deterioration mechanisms.


Treatment of existing concrete structures
includes efforts to increase the service life of concrete structures by external means (i.e. not included in the concrete mix) such as
• Application of membranes
• Application of hydrophobie agents
• Chloride removal techniques
• Re-alkalisation techniques for carbonated concrete
• Cathodic protection of steel reinforcement


Principles of making durable concrete structures
• Concrete of low permeability
• Concrete of high electrical resistivity
• Structural design for durability
• Etc


Durability of off-shore concrete structures like
• Floating structures
• Gravity based structures
• Sea wind mill farms
• Etc


Sustainability
In future, sustainability evaluation is expected to be included in the early conceptual stages of building projects as part of the user requirements and functionality performance. All three dimensions of environmental, life cycle cost and health & comfort performance are subject to assessment methodology development.
Contributions are invited on concepts and examples:
• Environmental impact (e.g. EPD)
• Economical considerations
• Codes and standards
• Etc


Modelling and calculating durable materials and degradation processes
The development and use of models and calculation tools vary from analytically based worksheets, via use of commercially available numerical tools based on for example FEM, to a vast range of programs and approaches including multi-scale, stochastic approaches etc. Verified with observations from accelerated tests, other experimental investigations as well as field observations of concrete durability.
Papers are invited within
• transport processes
• degradation mechanisms (chemical, physical)
• service life predictions
• comparing models and real data

 

 

  • Date:17.06.2012 kl 1800
    21.06.2012 kl 1230
  • Venue: Clarion Hotel & Congress, TRONDHEIM
  • Area:Anlegg
  • Conference number:1211150
  • Register by:04-JUN-12
  • Conference fee:
    • Kr 7500,- conf. get together, banquet, field trip
    • All prices are exclusive 25% VAT.
  • Latest cancellation:06-JUN-12
  • Cancellation fee:Kr 1500,-
  • Contact: Henny Cathrine Braarud
    22 94 75 00
04-JUN-12
30-OCT-14