RESEARCH ON CHARACTERIZATION OF RECYCLED FINE AGGREGATE

Abstract

  Recycled fine aggregate crushed by jaw crusher has a brittle part, which contains many defects such as cracks, pores and voids. This paper describes the effect of pulverize machine on the characteristics of recycled fine aggregate, especially focusing on the selective removal of defective parts in recycled fine aggregate, as well as improving both size distribution and shape of grain. As for pulverizing machines, jaw crusher, granulator, and ball mill is used. Main action of jaw crusher is due to crushing, granulator is grinding, and ball mill is crushing and grinding, respectively.