Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2006.2956.2958KalaiarasuSri M. K. Subramanian 122006614This study describes about the investigation undertaken to examine the suitability of recycled concrete as a substitute for fine aggregate. Recycled concrete (artificial sand) is used for 40% of fine aggregate and natural sand is retained for the remaining part. HPC of M 60 grade is attempted, with different replacement levels of cement with silica fume. Maximum 28 day compressive strength of 71.70 MPa with 15% replacement of cement with silica fume was observed for a water-binder ratio of 0.32 acid resistance and chloride impermeability increases with increase of silica fume content.]]>Allen, C.,19971997pp: 113Chinnaswamy, E.B.,19891989Frondistou-Yannas, S.,197774373376Nixon, P.J.,197611371376Ravindrarajah, R.,1987391224Ray, S.P.,199118121135Sarkhel, A.C.,2000355065Sundarajan, R. and K. Permual,20032003pp: 303313