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Coarse aggregate is placed in a rigid bucket and rodded with a tamping rod to determine its unit weight. The following data are obtained:
Volume of bucket =
Weight of empty bucket = 20.3 lb
Weight of bucket filled with dry rodded coarse aggregate:
Trial 1 = 76.6 lb
Trial 2 = 75.1 lb
Trial 3 = 78.8 lb
a. Calculate the average dry-rodded unit weight
b. If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent voids between aggregate particles for each trial
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