5.14 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 = ¹/2 ft³ 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 Questions and Problems 217 Trial 3 = 78.8 lb a. Calculate the average dry-rodded unit weight

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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5.14
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 = ¹/2 ft³
Weight of empty bucket = 20.3 lb
Weight of bucket filled with dry rodded coarse aggregate:
Trial 176.6 lb
Trial 275.1 lb
Questions and Problems 217
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.
Transcribed Image Text:5.14 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 = ¹/2 ft³ Weight of empty bucket = 20.3 lb Weight of bucket filled with dry rodded coarse aggregate: Trial 176.6 lb Trial 275.1 lb Questions and Problems 217 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.
Expert Solution
Step 1

Unit weight is defined as the ratio of total weight and the total volume of the material.

The % voids is defined as the ratio of volume of voids and the total volume of the material .

 

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