Objective
The objectives of this project have been met. Tasks 1 and 2 have permitted to propose and select, after an impressive series of tests on concrete samples, the best couple anode-electrolyte. Samples of anode materials with various densities have been produced. Best results for chloride extraction and realkalisation were obtained with the following couple 9Al/AlMg3/NaOH 2M.
The principles of the data acquisition system and of the regulation equipment have been set up in Task 3. This system will permit to monitor the loss of water in the paste and re-humidify it to restore an efficient galvanic current. Task 4 has investigated the secondary effects of the treatment on structures potentially reactive to ASR. No effects were recorded on carbonated concrete; However a treatment on fully chloride contaminated structures would induce a significant ASR expansion.
A specific application pump and extrusion devices have been developed and successfully tested within Task 5. Also a polymer modified cement-based coating has been tested. It reduces significantly further ingress of CO2 and chloride after treatment.
Finally, Task 6 was scheduled to work on proposed European standards. The last draft of prEN 14038 includes now recommendations on electrochemical treatment of reinforced concrete by using galvanic current.
The main goal of this protect is to develop a new process, easy to apply, which creates at the same time a desalination, or chloride extraction and a realkalisation of the concrete. This research will help to preserve reinforced concrete structures of deterioration due to corrosion of steel reinforcement since the corrosion mechanism is directly linked with the depassivation of concrete (carbonation) and the ingress of chlorides (due to deicing salts for instance). It will permit to increase the lifespan of these structures. Economical interests and safety profits are obvious. At this moment, the realkalisation and chloride extraction can be obtained using an external electric power supply. Here, the idea is to develop an electrolytic paste with a sacrificial anode (which is applied on the concrete surface and use the current produced by the cell (like an ordinary battery) formed when the anode (in the developed electrolyte) is relied to the reinforcement. The created battery pumps out the chloride ions for the desalination and generates hydroxides for the realkalisation. A feasibility analysis has been conducted and has provided encouraging results. The SME proposers manufacture specific concrete additives metals, sensors and measuring devices, automatic regulation systems and shotcreting equipments. They would like to work with RTDs dedicated to study and specify the best composition of the product, to test it in laboratories, to determine the side effects and characterize its efficiency.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology electrical engineering, electronic engineering, information engineering electrical engineering electric energy
- natural sciences chemical sciences polymer sciences
- engineering and technology materials engineering coating and films
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering sensors
- engineering and technology chemical engineering separation technologies desalination
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
2740 AK Waddinkeen
Netherlands
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.