- Self-healing As prevention Repair of COncrete Structures
- 조회수 : 205 작성일 : 2020.12.14
Implementing innovative and sustainable solutions for extending the service life of concrete structures
The search for smart self-healing materials and preventive repair methods is justified by the increasing sustainability and safety requirements of structures. The appearance of small cracks in concrete is unavoidable, not necessarily causing a risk of collapse for the structure, but certainly accelerating its degradation and diminishing the service life and sustainability of constructions. That loss of performance and functionality promote an increasing investment on maintenance and/or intensive repair/strengthening works. The critical nature of such requirements is signified by their inclusion as priority challenges in the European Research Program.The first focus of this proposal is to compare the use of self-healing capabilities of concrete with the use of external healing methods for repairing existing concrete elements. Despite the promising potential of the developed healing technologies, they will be real competitive alternatives only when sound and comparative characterization techniques for performance verification are developed, being this SARCOS's second focus. The third focus deals with modelling the healing mechanisms taking place for the different designs and with predicting the service life increase achieved by these methods. SARCOS COST Action will be lead by research institutions searching on different self-healing technologies and repair solutions for extending service life of new and existing concrete structures, with high expertise in developing characterization techniques. Also specialists on modelling healing mechanisms and experts on numerical service life prediction models contribute for the Action's success. This composition provides a solid framework to advance in implementing innovative and sustainable solutions for extending the service life of concrete structures.
Our Action (CA15202), Self-healing As preventive Repair of COncrete Structures, started on 30 September 2016 and will last until 29 September 2020.
- Self-healing of cement-based construction materials represents a valuable and cutting edge asset because of their inborn capacity to repair damages once they occur.
- External repair methods based on incorporating “healing promoter additives”, compatible with the existing cementitious substrate, are also innovative solutions beyond the know-how for the repair and rehabilitation of the existing building and infrastructures’ stock.
- These preventive repair solutions aim at extending the service life of structures and infrastructures without lost of performance.
- SARCOS Action deals with these new concepts and advanced solutions, from the design of smart “healing promoter additives” to the standards definition for performance evaluation, involving a breakthrough scientific research.
COST (European Cooperation in Science and Technology) is a pan-European intergovernmental framework. Its mission is to enable break-through scientific and technological developments leading to new concepts and products and thereby contribute to strengthening Europe’s research and innovation capacities. It allows researchers, engineers and scholars to jointly develop their own ideas and take new initiatives across all fields of science and technology, while promoting multi- and interdisciplinary approaches. COST aims at fostering a better integration of less research intensive countries to the knowledge hubs of the European Research Area. The COST Association, an International not-for-profit Association under Belgian Law, integrates all management, governing and administrative functions necessary for the operation of the
framework. The COST Association has currently 36 Member Countries.
COST funding is based on Actions, which are networks of coordinated collaborations, to address the specialized issues being set forth by the Action. Action participants come from COST and non-COST countries. The Actions are led by a Memorandum of Understanding signed by the governments of the COST countries participating in the Action. The initiative within the Action comes from the scientists, technical experts and from those with a direct interest in furthering international collaboration.