Base course aggregate has a target dry density of 1917 kg/m3 in place. It will be laid down and compacted in a rectangular street repair area of 600 m X 15 m X 0.15 m. The aggregate in the stockpile contains 3.1% moisture. If the required compaction is 95% of the target, how many tons of aggregate will be needed?

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.

2. A sample of fine aggregate weighs 501.2 g when SSD and 491.6 g when OD. The flask weighs 540.6 g when filled with water and 843.1 g when filled with the aggregate sample and water. Calculate the bulk specific gravity, apparent specific gravity and percent absorption.

coarse aggregate with a nominal maximum size of 2 inches and dry rodded density of 110 lb/ft3 will be used in a trial mix design. determine the coarse aggregate content in pounds per cubic yard required if the fine aggregate fineness modulus is 2.50.