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 5.45QP
Review ASTM D75 and summarize the following:
a. Sampling aggregates from conveyer belts.
b. Sampling aggregates from stockpiles.
c. Sampling aggregates from roadway bases and subbases.
d. If the nominal maximum aggregate size is 3/4 in., what is the minimum sample size that needs to be obtained?
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Students have asked these similar questions
help find a, and b
Thoroughly mix the aggregate sample and reduce it to an amount suitable for testing, using a
sample splitter or by quartering. The minimum sample size should be as follows:
Minimum Mass, kg
Fine aggregate with at least 95% passing 2.36-mm sieve
0.1
Fine aggregate with at least 85% passing 4.75-mm sieve
0.5
Coarse aggregate with a nominal maximum size of 9.5 mm
1
Coarse aggregate of a nominal maximum size of 12.5 mm
2
Coarse aggregate of a nominal maximum size of 19.0 mm
Coarse aggregate of a nominal maximum size of 25.0 mm
10
Coarse aggregate of a nominal maximum size of 37.5 mm
15
The table below presents the results of the sieve analysis conducted on a sample of aggregate.
Given the bulk specific gravities of 2.65 for coarse aggregate, 2.69 for fine aggregate, and 2.73
for filler, determine the bulk density of the aggregate sample. Additionally, calculate the
maximum aggregate size and nominal aggregate maximum size.
Sieve size (mm) 37.5
% Passing
100
Specification
limit
25
92
100 90-100
19
83
76-90
12.5 9.5 4.75 2.36 0.3
71
62
53
32 15
56-80
48-74 29-59 19-45
5-17
0.075
4
2-8
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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- From a Fine Aggregate sample, the ff data are given below to determine only the SPECIFIC GRAVITIES and ABSORPTION OF THE SAMPLE. MASS of oven dried aggregate 428.3g MASS of PYC filled with water =652.5g MASS of aggregate and water =785.3g MASS of SSD Aggregate =459.1g MASS OF AN EMPTY PYCNOMETER =125.0g MASS of oven dried aggregate 428.3g 652.5g 785.3g 459.1g 125.0g MASS of PYC filled with water MASS of aggregate and water MASS of SSD Aggregate MASS OF AN EMPTY PYCNOMETER IL || || |Iarrow_forward5. The table below represents data from sieve analysis carried out on a coarse aggregate sample. Determine the fineness modulus and plot the grading curve for the given coarse aggregate. ASTM SIEVE NO. SIEVE SIZE MASS RETAINED (GRAMS) 3/4 in 19 mm 4640 3/8 in 9.5 mm 4950 4 4.75 mm 3790 8 2.36 mm 260 16 1.18 mm 120 30 600 microns 0 50 300 microns 100 150 microns 0 panarrow_forwardQ.2) Answer the following question. 1- The sieve analysis below was done for which type of aggregate. Weight of sample = 2000gm Sieve size in. (mm) 3/8" 9.5 mm No.4 4.75 mm No.8 2.36 mm No.16 1.18 mm No.30 0.6 mm No.50 0.3 mm No.100 0.15 mm Pan Percent Weight retained (g) retained 02000*100 94 →0 Klcc→ +-2000 4032000X100 72 Percent cumulative @ 2212000x100112 4.7 > 95 358420000²18 30 / 75 982 57 360 2000 Alco isies 39 4924200009 24.614 · 100 3 Percent passing 0 5 25 уз 61 86 97 317 ASTM Limit 100 95_100 SO_100 40 85 25_60 10_30 2_10arrow_forward
- 5.10 Samples of coarse aggregate from a stockpile are brought to the laboratory for determination of specific gravities. The following weights are found: Mass of moist aggregate sample as brought to the laboratory: 5,298 g Mass of oven dried aggregate: 5,216 g 5.11 5.12 5.13 5.14 Mass of aggregates submerged in water: 3,295 g Mass of SSD (Saturated Surface Dry) Aggregate: 5,227 g Find a. The aggregate bulk dry specific gravity b. The aggregate apparent specific gravity c. The moisture content of stockpile aggregate (report as a percent) d. Absorption (report as percent) 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 × 15 m × 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? Calculate the percent voids between aggregate particles that have been com- pacted by rodding, if the…arrow_forwardProvide complete and neat solutionsarrow_forward1. Three samples of aggregates are sieved to obtain the grading curve. A set of different sieves is stacked with the coarsest mesh at the top. The aggregate is then placed in the top sieve and the stack is placed in a sieve shaker. The raw data is as follows: Sieve size (mm) 19 9.5 4.75 2.36 1.18 0.6 0.3 0.15 Pan Mass of sieve (g) 670 620 620 570 570 520 520 520 490 For each sample: Plot the grading curve. a. b. Identify the type of gradation. c. Determine the fineness modulus. Mass of sieve + aggregates retained (g) Sample B mass of the empty measure mass of measure + water Sample A 670 770 820 740 720 770 720 570 525 mass of measure + rodded aggregates mass of measure + loose aggregates 670 1820 620 570 570 670 720 620 544 2. The rodded and loose bulk density of an aggregate sample is to be determined. The following are acquired during the experiment: - 12.15 kg - 27.15 kg - 34.60 kg - 25.16 kg Sample C 670 620 620 670 770 720 620 620 506arrow_forward
- 7. Make a spread sheet blend template program to perform a blend gradation analysis for up to four stockpiles with the ability to produce automatically semilog or power 0.45 gradation charts. Use the table to demonstrate the template, and calculate the fineness modulus for the aggregate D. Aggregate Blend Percent (%) Sieve size (mm) 37.5 25 19 12.5 9.5 4.75 2.36 1.18 0.60 0.30 0.15 0.075 A 20 100 100 95 89 70 10 2 N|N 2 2 2 2 2 B 25 100 100 100 100 82 55 15 55 32 2 1 с 25 Percent Passing 100 100 100 100 100 100 69 55 35 22 15 6 D 30 100 100 100 100 100 100 86 54 34 25 14 5arrow_forwardCalculate and PLEASE make a report about the result.arrow_forwardSieve Analysis of Coarse Aggregates) Another group of students have gathered data for sieve analysis for another aggregate stockpile. Determine the percentages passing of each size and draw the grain size curve. Sieve Size Amount retained, g 1-1/2" 1" 315 782 3/8" No. 4 No. 30 No. 200 1493 677 1046 1502 Pan 45arrow_forward
- the nominal Maximum aggregate Size for the aggregate gradation shown below is equal to Sieve size Passing % 3/4 inch 100 1/2 inch 100 3/8 inch 91 No.4 72 No.8 65 No.30 22 No.200 4arrow_forwardYou are given a result of the gradation test of aggregate, calculate and plot the gradation curve on the given semilog graph sheearrow_forwardCan you please write how did you come up with the answerarrow_forward
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