
LS7 – lime stone7 (sample of crusher screen age having 4 to 6 years) LS8 – lime stone8 (sample of crusher screen age having than 6 years) 160 Rajan Mishra S. P. Mishra Sieve Analysis-The test sieve used for concrete aggregate have square openings and their properties are prescribed by BS 410 1986 and ASTM E 11- 87.