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Content archived on 2024-04-30

Integrated monitoring systems for durability assessment of concrete structures

Objective



Objectives and content
The major part of the European infrastructure has reached
an age where the capital costs have decreased, but the
inspection and maintenance costs have grown to such an
extent (5 billions ECU per year) that they constitute a
major part of the current costs of the infrastructure.
The traffic delay costs due inspection and maintenance
are already 15 to 40% of the construction costs. The
objective of this project is to produce an integrated
monitoring system so the inspection and maintenance costs
and the traffic delays can be reduced. The development of
an integrated, modular monitoring system for new and
existing concrete structures will be combined with
enhanced deterioration models. The currently available
probes does not cover the needs. A number of new
innovative, inexpensive probes for monitoring in existing
structures will therefore be developed, covering the most
important deterioration mechanisms:
Corrosion of reinforcement.
Carbonation of concrete.
Freeze-thaw damage.
Alkali-aggregate reaction.
Mechanical damage (overloading).
The progress of these mechanisms can be predicted by
monitoring key material parameters (temperature,
moisture, pH, chloride concentration, corrosion current /
rate / initiation), either on the surface or as a profile
through the concrete of the structure and the mechanical
parameters (strain, deflection, vibration, acoustics).
The final results will be an integrated monitoring system
for monitoring in existing structures, which includes:
Prototypes of integrated monitoring system, Manual for
site-tailoring of monitoring system, Prototype of an
integrated model for damage development, Prototype of new
innovative, inexpensive probes, Local data collecting
units combined with a long-distance data-transfer system.
The consortium comprises of major consultant companies,
scientific institutes, national road authorities, owners
of toll-roads and SME's specialised in sensor and
monitoring technology. It is estimated that the use of
this system could generate reductions in the order of 15%
of the current operating costs. In addition, the design
of new construction projects will benefit from the
improved prediction models, yielding an additional saving
of the order of 10% in life cycle costs.

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Funding Scheme

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CSC - Cost-sharing contracts

Coordinator

Ramboll Hannemann & Hojlund A/S
EU contribution
No data
Address
125A,Frodesgade
6700 Esbjerg
Denmark

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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

No data

Participants (7)

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