ACES focuses on safety-critical concrete infrastructure of current and next generation nuclear power plants

The project will contribute to the development of ageing mechanisms understanding, physics-based advanced modelling, in-service inspection methods development, structural significance assessment, and end-use guidance.

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What is ACES projects in a nutshell

The purpose of ACES is to advance the assessment of safety performance of safety-critical concrete infrastructure by addressing remaining scientific and technology gaps for the safe and long term operation of nuclear power plants.

Project’s goal

The main objective of ACES is to advance the assessment of safety performance of civil engineering structures by solving the remaining scientific and technological problems that currently hinder the safe and long-term operation of nuclear power plants reliant on safety-critical concrete infrastructure. Proper understanding of deterioration and ageing mechanisms requires a research strategy based on combined experimental and theoretical studies, following a multidisciplinary approach, and utilizing state of the art experimental and modelling techniques. Material characterization at different length scales (i.e. nano, micro, meso, and macro scales) is necessary, focusing on the physical understanding of the degradation processes (e.g. neutron and gamma radiation, internal swelling reactions, liner corrosion, etc.) as well as physical phenomena (drying, creep, shrinkage, etc.), and their influence on macroscopic mechanical properties and structural/ functional integrity of the components.

Expected Outcomes

The ACES project aims at having a significant impact on the safety of operational Gen II and III NPPs and impacting the design of next-generation plants. ACES will improve the understanding of ageing/ deterioration of concrete and will demonstrate and quantify inherent safety margins introduced by the conservative approaches used during design and defined by codes and standards employed through-out the life of the plant. The outcomes from ACES will therefore support the LTO of NPPs. This will be achieved by using more advanced and realistic scientific methods to assess the integrity of NPP concrete infrastructure. The project will provide evidence to support the methods by carrying out various tests, including large scale tests based on replicated scenarios of NPPs.

News, posts and events

Research on ASR/DEF from the ACES project was presented in the 2nd Japanese Society of Civil Engineering (JSCE) Webinar – Frontiers of Concrete Technology. This webinar was dedicated to Ageing Management of Nuclear Power Plants. The video of the Webinar is available in YouTube at: https://www.youtube.com/watch?v=ArU-x-oyGig
International Conference on Non-destructive Evaluation of Concrete in Nuclear Applications – NDE NUCCON We are happy to be collaborating in the organization of the event!SAVE THE DATE!
Yesterday (June 1, 2021) we started irradiation of sixty aggregate samples. This is a very important phase in work package 5 Assessing the performance of irradiation of concrete. All samples were inserted into two capsules and put into active zone of light water research reactor LVR-15 being operated by Research centre Rez in Husinec-Rez near …

Project’s Partners

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WP 1

State-of-the-art of quantitative assessment of ageing of concrete SSC

diederik.jacques(at)sckcen.be

WP 2

Corrosion assessment of embedded liners in concrete

andraz.legat(at)zag.si

nina.gartner(at)zag.si

WP 3

Characterization, prediction, and monitoring of internal swelling reactions in concrete

jacques.jabbour(at)irsn.fr

WP 4

Delayed strains of containment buildings in operational and accidental conditions

jean-luc.adia(at)edf.fr

WP 5

Assessing the performance of irradiated concrete

stemberk(at)fsv.cvut.cz

WP 6

Dissemination, communication and training

tereza.smekalova(at)cvrez.cz

jan.trejbal(at)cvrez.cz


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