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 = 14 LWeight of empty bucket = 9.21 kgWeight of bucket filled with dry rodded coarse aggregate:Trial 1 = 34.75 kgTrial 2 = 34.06 kgMeasureSampleA B CWet Mass (g) 521.0 522.4 523.4Dry Mass (g) 491.6 491.7 492.1Absorption (%) 2.5 2.4 2.3Table P 5 . 9 determine the amount of water required to increase the moisture content of aggregate to reach absorption?5.9 Three samples of fine aggregate have the properties shown in Table Trial 3 = 35.74 kga. Calculate the average dry-rodded unit weightb. If the bulk dry specific gravity of the aggregate is 2.620, calculate thepercent voids between aggregate particles for each trial.
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 = 14 L
Weight of empty bucket = 9.21 kg
Weight of bucket filled with dry rodded coarse aggregate:
Trial 1 = 34.75 kg
Trial 2 = 34.06 kg
Measure
Sample
A B C
Wet Mass (g) 521.0 522.4 523.4
Dry Mass (g) 491.6 491.7 492.1
Absorption (%) 2.5 2.4 2.3
Table P 5 . 9 determine the amount of water required to increase the moisture content of aggregate to reach absorption?
5.9 Three samples of fine aggregate have the properties shown in Table
Trial 3 = 35.74 kg
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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