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 5.28QP
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 P5.28.
Determine the percent passing each sieve for the blended aggregate.
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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.
5.24 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 fol-
lowing table:
Sieve Size (mm)
% Passing Agg. A
% Passing Agg. B
% Passing Agg. C
9.5
85
50
40
4.75
70
35
30
0.6
35
20
0.3
25
13
1
0.15
17
7
Determine the percent passing each sieve for the blended aggregate.
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?
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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- 5.17 Calculate the sieve analysis of the following aggregate and plot on a semilog gradation paper. What is the maximum size? What is the nominal maximum size? Sieve Size 25 mm (1 in.) 9.5 mm (3/8 in.) 4.75 mm (No. 4) 2.00 mm (No. 10) 0.425 mm (No. 40) 0.075 mm (No.200) Pan Amount Cumulative Amount Cumulative Percent Retained, g Retained, g 0 47.1 239.4 176.5 92.7 73.5 9.6 Retained Percent Passingarrow_forwardA sieve analysis test was performed on a sample of aggregate and produced the results shown in Table. Calculate the percent passing through each sieve. What is the maximum size? What is the nominal maximum size? Plot the percent passing versus sieve size on: a. a semilog gradation chart, and b. a 0.45 gradation chart (Figure A.25). Amount Retained, (g) Cumulative Percent Retained SIEVE ΝΟ. SIEVE SIZE Cumulative Amount Percent Passing Retained, (g) 215 885 980 12 2,350 3/8 1,190 4 2,205 8 1,985 10 1,840 40 1.650 100 980 200 660 PAN 60 ΤΟΤAL 15,000arrow_forwardTable shows the grain size distributions of aggregates A, B, and C. The three aggregates must be blended at a ratio of 15:25:60 by weight, respectively.Using a spreadsheet program, determine the grain size distribution of the blend.arrow_forward
- A coarse aggregate sample was dried in an oven for 1.5 hours before it was immersed in water for 24 hours then rolled in an absorbent cloth to dry the surfaces of the aggregate. The weight in this condition is found to be 3002 g. It was transferred to a density basket to determine its weight in water which was recorded to be 1910 g. it was then poured in a drying pan and dried in the oven. The weight after drying was 2965 g. Compute the following: a. Bulk Specific Gravity (oven dry) b. Bulk Specific Gravity (SSD) c. Apparent Specific Gravity d. Absorption in %arrow_forwardthe Nominal Maximum aggregate Size (N.M.S) for the aggregate gradation shown below is equal to Sieve size Passing % 3/4 inch 100 1/2 inch 3/8 inch 99 89 No.4 72 No.8 65 No.30 22 No.200 Your answer 4-arrow_forward4-33. Following are results of gradation tests on three aggregates: Aggregate A 100% 92% 41% 19% 7% 4% 2% 1% Passing 25 mm (1 in.) 19 mm (3/4 in.) 9.5 mm (3/8 in.) 4.75 mm (No. 4) 2.36 mm (No. 8) 600 μm (No. 30) 300 μm (No. 50) 75 μm (No. 200) Aggregate B 100% 77% 60% 42% 36% 28% Aggregate C 100% 96% 79% 40% 16% 3% Combine these to give a gradation falling approximately in the center of the specification given in Section 4-5.1.arrow_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_forwardA 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?arrow_forwardANALYTIC APPROACH IN AGGREGATES 5 set of sieves are to be used for analysis of aggregates. After sieve shaking the sieves, the mass of aggregates that retained on the 1st sieve is 50.26% of the total mass of the sample and the mass of aggregates that retained on the 2nd sieve is 20.26% of the total mass. The mass of the aggregates that passed through the 3rd sieve and 4th sieve is 42.81% and 8.628%, respectively, of the difference of the mass of aggregates that retained on the 1" and 2nd sieve. The mass of aggregates on the pan is 0.4105% of the total mass of the sample – which is 2.6 kg. Complete the table on the worksheet provided and round off to two decimal places.arrow_forward
- 1. 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_forwardReferring to the aggregate gradations A, B, and C in Figure P5.26, answer the following questions: a. What is the maximum size of each gradation? b. What is the nominal maximum size of each gradation? c. Classify each gradation as dense, open, or gap indicating the reason for each classification. 100 A 80- 60 40 0.075 0.30 1.18 2.36 4.75 9.5 12.5 19.0 25.0 0.15 0.60 Sieve sizes (mm) FIGURE P5.26 Percent passing 20arrow_forwardAggregates from three sources having the properties shown in the table below where blended at a ratio of 30:45:25 by weight. Determine the properties of the aggregate blend. Aggregates 1 Aggregates 2 Aggregates 3 Properties Coarse aggregate Angularity, percent crushed faces Bulk Specific Gravity |Apparent Specific Gravity 72 86 91 2.75 2.69 2.65 2.87 2.82 2.91arrow_forward
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