Yes I did wash the hydrometer sample and shake it. I only use one sieve set per ASTM D7928 to avoid any calculation or lab mistakes, so the whole sample that I start with is washed and shaken together after the hydrometer is done. I'm sure nothing wrong was done regarding following the standard...
Im facing the issue of having a jump in the gradation curve when combining data from sieve analysis D6913 and hydrometer D7928
Basically the jump is up not down, which means if my passing #200 is 25%, the passing particle size 0.05mm is 30%. Which does not make sense.
Its organic soil and has a...
