FLEXURAL PERFORMANCE OF RECYCLED COARSE BEAMS MADE WITH RECYCLED COARSE AGGREGATE INCORPORATING ALCCOFINE

摘要

The flexure behaviour of 100 recycled coarse aggregate (RCA) concrete beams was studied using alccofine as cement replacement materials. 36 beams were tested in which twelve beams are made of recycled coarse aggregate, twelve beams made with alccofine and natural aggregate; and twelve control beams were made of natural coarse aggregate (NCA) tested in four point loading condition. The parameters used for the study are 100 NCA with and without alccofine mix compared with 100 RCA with alccofine and tensile rebar ratio of 0.68 and 1.03. The crack patterns, ductility and flexural strength of RCA concrete beams are affected by 100 RCA content significantly and alccofine helps in improving the strength.