Studies of RC Beams Made of Recycling Aggregate Concrete Strengthened with the HSC-HPC Inclusions

This paper presents the studies of innovative RC flexural members made of recycled aggregate concrete strengthened by the local use of High Strength - High Performance Concrete. This concept of is based on precast concrete strengthening inserts made of HSC-HPC located in the most stressed compression zone of the member made of recycled aggregate concrete. Some selected results of experimental and numerical studies of such innovative model beams as well as full-scale beams have been presented here in comparison with the results of reference homogenous beams showing many positive effects like higher flexural capacity and stiffness under short time loading.