www.VOJOUDI.com Seive analysis program help: " This file that is attached is for sieve analysis of aggregate. In this Program you must insert 'Retained' weight of sands & aggregates for displaying in graph. The standard range for fine and coarse aggregates is also drawn in figure and one can cipare his aggregats with standard range. Also in sheet number#2 one cane combine 2 types of aggregates in any percent range and see the combined curve and after that can compare it with it's staandard range. " Davoud Safari