help find a, and b Calculate the dry rodded unit weight (density), apparent specific gravity, bulk specific gravityoven dry, and bulk specific gravity at SSD for the following two aggregate samples.a) An aggregate sample from a stockpile A has a mass of 35.09 lb. When oven-dried, it has amass of 33.14 Ib. When brought to a saturated surface dry state it has a mass of 35.18 Ib.When weighed in water, it has a mass of 20.23 Ib. A 0.35 ft. bucket filled with an oven-drysample of the aggregate weighs 33.14 lb.b) An aggregate sample from a stockpile A has a mass of 8.93 kg. When oven-dried, it has amass of 7.4 kg. When brought to a saturated surface dry state it has a mass of 7.87 kg.When weighed in water, it has a mass of 4.35 kg. A 0.009 m.3 bucket filled with an oven-dry sample of the aggregate weighs 13.9 kg.

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Answered: Calculate the dry rodded unit weight…

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter4: Mechanical Processes

Section: Chapter Questions

Problem 4.4P

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Calculate the bulk specific gravity of combined aggregate if you know the specific gravities of coarse aggregate (C), fine aggregate (F) and Mineral Filler (MF) are 2.61, 2.63 and 2.71 respectively. The percent for C, F, and MF can be determined based on the gradation shown below
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 =14L Weight of empty bucket = 9.21kg Weight of bucket filled with dry rodded coarse aggregate: Trial 1 =34,75 kg Trial 2 =34.06 kg 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.
TEST PROCEDURE: 1. Dry the aggregate test sample to a constant weight at a temperature of 110 ± 5°C, then cool to room temperature. 2. Select suitable sieve sizes to furnish the information required by the specifications covering the material to be tested. Common sieves in millimeters are 37.5, 25, 19, 12.5, 9.5, 4.75, 2.36, 1.18, 0.6, 0.3, 0.15, and 0.075 mm (11 2 in., 1 in., 3 4 in., 1 2 in., 3 8 in., No. 4, No. 8, No. 16, No. 30, No. 50, No. 100, and No. 200). 3. Nest the sieves in order of decreasing size of opening, and place the aggregate sample on the top sieve. 4. Agitate the sieves by hand or by mechanical apparatus for a sufficient period. The criterion for sieving time is that, after completion, not more than 1% of the residue on any individual sieve will pass that sieve during 1 minute of continuous hand sieving. 5. Determine the weight of each size increment. 6. The total weight of the material after sieving should be compared with the original weight of the sample placed…
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 = 12 ft3Weight of empty bucket = 20.3 lbWeight of bucket filled with dry rodded coarse aggregate:Trial 1 = 76.6 lbTrial 2 = 75.1 lb Trial 3 = 78.8 lba. Calculate the average dry-rodded unit weightb. If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent 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 = 1/3 ft3Weight of empty bucket = 18.5 lbWeight of bucket filled with dry rodded coarse aggregate = 55.9 lba. Calculate the dry-rodded unit weightb. If the bulk dry specific gravity of the aggregate is 2.630, calculate the percent voids in the aggregate.
Calculate the percent voids between aggregate particles that have been compacted by rodding, if the dry-rodded unit weight is 1410 kg/m3and the bulk dry specific gravity is 2.701.
Three aggregates are to be mixed together in the following ratio:Aggregate A: 35%Aggregate B: 40%Aggregate C: 25%For each aggregate, the percent passing a set of five sieves is shown in Table PDetermine the percent passing each sieve for the blended aggregate.
Calculate the percent voids between aggregate particles that have been compacted by rodding, if the dry-rodded unit weight is 1161 kg/m3and the bulkdry specific gravity is 2.639.
A sieve analysis test was performed on a sample of aggregate and produced the results shown in Table .Calculate the percent passing through each sieve. Plot the percent passingversus sieve size on:a. a semilog gradation chart, andb. a 0.45 gradation chart (Figure A.25).What is the maximum size? What is the nominal maximum size?
Calculate the percent voids between aggregate particles that have been compacted by rodding, if the bulk dry-rodded unit weight is 90 lb/ft3 and the bulk dry specific gravity is 2.70.
Three aggregates are to be mixed together in the following ratio: Aggregate A 35% Aggregate B 40% Aggregate C 25% For each aggregate, the percent passing a set of five sieves is shown in the following table: Determine the percent passing each sieve for the blended aggregate?
A sieve analysis test was performed on a sample of fine aggregate and produced the following results:Sieve, mm 4.75 2.36 2.00 1.18 0.60 0.30 0.15 0.075 panAmount retained, g 0 33.2 56.9 83.1 151.4 40.4 72.0 58.3 15.6Calculate the percent passing each sieve, and draw a 0.45 power gradation chart with the use of a spreadsheet program. The specific steps or functions selected in the following description can vary somewhat depending on the version of the spreadsheet program being used.

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