Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 5.11QP
Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft × 48 ft × 6 in. 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?
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Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft * 48 ft * 6 in. 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?
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?
Based on the data shown in Table P9.31, select the blend for a Superpave
design aggregate structure. Assume <0.3 million ESAL and 19 mm nominal
maximum aggregate size.
TABLE P9.31
Blend
Data
1
3
Gmb
Gmm
2.451
2.465
2.467
2.585
2.654
2.584
Gp
1.030
1.030
1.030
P
5.9
5.5
5.8
94.1
94.5
94.2
Ра
4.5
4.5
4.5
Gşb
2.657
2.667
2.705
Hini
127
135
124
Håes
113
114
118
Chapter 5 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 5 - Prob. 5.1QPCh. 5 - Discuss five different desirable characteristics...Ch. 5 - Discuss five different desirable characteristics...Ch. 5 - The shape and surface texture of aggregate...Ch. 5 - Define the following terms: a. Saturated...Ch. 5 - Three samples of fine aggregate have the...Ch. 5 - A sample of wet aggregate weighed 297.2 N. After...Ch. 5 - 46.5 kg (102.3 lb) of fine aggregate is mixed with...Ch. 5 - Samples of coarse aggregate from a stockpile are...Ch. 5 - Base course aggregate has a target dry density of...
Ch. 5 - Calculate the percent voids between aggregate...Ch. 5 - Calculate the percent voids between aggregate...Ch. 5 - Coarse aggregate is placed in a rigid bucket and...Ch. 5 - The following laboratory tests are performed on...Ch. 5 - Students in the materials lab performed the...Ch. 5 - The specific gravity and absorption test (ASTM...Ch. 5 - Prob. 5.18QPCh. 5 - Calculate the sieve analysis shown in Table P5.19...Ch. 5 - Calculate the sieve analysis shown in Table P5.20,...Ch. 5 - A sieve analysis test was performed on a sample of...Ch. 5 - A sieve analysis test was performed on a sample of...Ch. 5 - Draw a graph to show the cumulative percent...Ch. 5 - Referring to Table 5.6, plot the specification...Ch. 5 - Referring to the aggregate gradations A, B, and C...Ch. 5 - Table P5.26 shows the grain size distributions of...Ch. 5 - Table P5.27 shows the grain size distributions of...Ch. 5 - Three aggregates are to be mixed together in the...Ch. 5 - Table P5.29 shows the grain size distribution for...Ch. 5 - Laboratory specific gravity and absorption tests...Ch. 5 - Table P5.31 shows the grain size distribution for...Ch. 5 - Prob. 5.32QPCh. 5 - Laboratory specific gravity and absorption tests...Ch. 5 - Prob. 5.34QPCh. 5 - Define the fineness modulus of aggregate. What is...Ch. 5 - Calculate the fineness modulus of aggregate A in...Ch. 5 - Calculate the fineness modulus of aggregate B in...Ch. 5 - A portland cement concrete mix requires mixing...Ch. 5 - Discuss the effect of the amount of material...Ch. 5 - Aggregates from three sources having the...Ch. 5 - Aggregates from three sources having the...Ch. 5 - A contractor is considering using three stockpiles...Ch. 5 - Prob. 5.43QPCh. 5 - What are the typical deleterious substances in...Ch. 5 - Review ASTM D75 and summarize the following: a....
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- Laboratory specific gravity and absorption tests are run on two coarse aggregate sizes, which have to be blended. The results are as follows: Aggregate A: Buck specific gravity = 2.395; absorption = 4.69% Aggregate B: Buck specific gravity = 2.601; absorption = 0.51% What is the specific gravity of a mixture of 50]% aggregate A and 50% aggregate B by weight?arrow_forwardUnderground Stormwater storage aggregate basin: - Surface Area: 500 ft x 100 ft - Thickness: 6in - Required Maximum Stormwater storage capacity: 75 000 gallons (1ft^3 = 7.48 gallon) -Assume water is only stored in void space between individual aggregate particles. Find: a. The Required Percent Void Content of the aggregate used? b. The Required Compacted Bulk Dry Unit Weight of the aggregate at the project site that will produce the required volume of storage. The aggregate has a specific gravity of 2.702. Round to the nearset whole number.arrow_forwardBase 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 600m * 15m * 9.15m. 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?arrow_forward
- Based on the data shown in Table P9.31, select the blend for a Superpavedesign aggregate structure. Assume 60.3 million ESAL and 19 mm nominalmaximum aggregate size.arrow_forwardCoarse aggregate is placed in a rigid bucket and compacted with a tamping rod to determineits unit weight. The following data are obtained:• Volume of bucket = 0.5 ft3• Weight of empty bucket = 20.3 lb• Weight of bucket filled with dry compacted coarse aggregate = 76.8 lba) Calculate the dry-compacted unit weight of the aggregate.b) If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent voids.arrow_forward5. Calculate the sieve analysis of the following aggregate and plot the grading curve by Excel Amount retained, g % Retained Sieve size 25mm (lin) 9.5mm (3/8in) 4.75mm(No. 4) 2.00mm (No. 10) 0.425mm (No. 40) 0.075mm (No. 200) Pan 0 42.1 289.2 148.3 127.5 64.8 6.1 Cumulative % Retainedarrow_forward
- Based on the data shown in Table select the blend for a Superpave design aggregate structure. Assume 60.3 million ESAL and 19 mm nominal maximum aggregate size.arrow_forward500 gm oven dry fine aggregate was tested to find its physical properties. The output from the test was as follows: SSD = 510 gm, mass of the vessel full of water = 1200 gm, mass of vessel plus sand and topped up with water= 1500 gm, mass in wet condition 518 gm, Apparent specific gravity= 2.5 . The grading of the fine aggregate is in the table below. Answer the followings: 1-Moisture content % is 2- The mass of oven dried sand isarrow_forward1.Calculate for the aggregate impact value given the total weight of aggregates to be 2698 gramsand 45 % of the total weight passed through the 2.36mm sieve and write the nature of thecalculated impact value. 2.An aggregate sample has undergo sieve analysis test. Given the total mass of 1590 grams, theweight of aggregate sample retained on 1.7mm sieve size is 457 grams. Calculate for the abrasionvalue of aggregates. 3.A concrete cylindrical sample has undergone compressive strength test. Given the cross-sectionalfaces of the cylinder each measure 6 inches across, and the cylinder failed at 57,634 pounds of force. What is the compressive strength of that sample of concrete? Please express your answer in N/mmarrow_forward
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