Development of a TRM system combining AAM optimized mortar with technical textiles, to strengthen existing concrete elements. The aim of this ESR project is to generate a fundamental understanding of the material properties of AAM-TRM and the structural behaviour of concrete members strengthened with AAM-TRM. Research objectives are:
|1)||To perform a literature study and get acquainted with the subject matter of AAM mortar and TRM systems, probabilistic design of repair interventions and service life assessment.|
|2)||To optimize the mix design in collaboration with ESRs 4 and 6, and to characterize the material behaviour.|
|3)||To perform ‘tension stiffening’ tests no concrete prisms to study the crack development.|
|4)||To perform large-scale experiments on quasi-static loaded RC beams strengthened with AAM-TRM in flexure, RC beams strengthening in shear, confined RC columns axially loaded in compression.|
|5)||Develop analytical and numerical models to describe the structural behaviour (prediction of failure modes, strength and deformation capacity) of elements tested as above.|
|6)||To study the service life assessment, in collaboration with ESR12.|
Validate the models with test data and use them to perform parametric studies and to develop design guidelines.
ESR5 will develop an optimized AAM mortar and AAM-TRM system (in collaboration with ESR1,3,5) and will verify experimentally and analytically/numerically the structural behaviour of RC members strengthened in flexure, shear or confined with AAM-TRM. This will enable to adapt design provisions for externally applied reinforcement through AAM-TRM.