AN EXPERIMENTAL RESEARCH ON REGENERATED BRICK GRANULES EFFECT ON SEISMIC BEHAVIOR OF RECYCLED CONCRETE COLUMNS

Low-cycle loading tests were carried out for 1 common concrete column and 3 recycled concrete columns models. Recycled concrete columns were respectively ordinary regeneration concrete column,regenerated brick granules recycled concrete column,silicon powder and fiber reinforced regenerated brick granule recycled concrete column. Through the experiment comparison,it was analysed the failure modes,the hysteretic performance,degradation of rigidity,ductility,energy dissipation and the load capability of the 4 specimens. Based on which it was studied the seismic performance of the brick granules and silicon powder and fiber reinforced recycled concrete column. Research showed that compared with ordinary concrete column,the seismic resistance of 3 pieces of the regenerated concrete columns was decreased. But regenerated brick grains recycled concrete elastic modulus and ductility were significantly decreased,and silicon powder and fiber could obviously improve their elastic modulus and ductility performance.