2022 Volume 28 Issue 68 Pages 18-23
Grading of crushed sand is different from that of natural sand. In this report, in order to simplify the expression method of grading of crushed sand, modified Rosin-Rammler’s equation was studied instead of Mimura’s one with five experimental constants. It was found that the grading of crushed sand can be expressed with modified Rosin-Rammler’s equation using two experimental constants and introduction of fineness modulus to the equation was considered. Based on the existing data and the provided equation in this study, it is suggested that one of the stipulations on crushed sand of JIS A 5005 may be reconsidered.
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