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 5.25QP
Referring to the aggregate gradations A, B, and C in Figure P5.25, 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.
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2(c )
Problem 9.69 The masses of the blocks are ma=
30 kg and mg = 70 kg. Between all of the contacting
surfaces, µ = 0.1. What is the largest force F that can
be applied without causing the blocks to slip?
30
B
3.5-6 A solid circular bar of diameter d = 50 mm
(see figure) is twisted in a testing machine until the
applied torque reaches the value T = 500 N · m. At
this value of torque, a strain gage oriented at 45° to the
axis of the bar gives a reading e = 339 × 10-6.
What is the shear modulus G of the material?
Strain gage
Įd = 50 mm
T= 500 N - m
T
45°
PROBLEM 3.5-6
25-7
A sample of a dry coarse grained material of 500 grams was shaken through a nest of sieves and the following results
are obtained:
20
| 200
40
0.425
Sieve No.
10
2.00
4
60
100
Pan
Opening (mm)
% Passing
4.75
0.85
0.25
0.15
0.075
--
94
60
30
10
7
5
3
31. Determine the uniformity coefficient.
b. 4.424
32. Determine the coefficient of curvature.
a.
4.706
C.
1.250
d. 0.85
а. 4.706
b. 4.424
C.
1.250
d. 0.85
33. Given that the soil is non-plastic, classify the soil by using the Unified Soil Classification System.
a.
GW
b. GP
C.
Sw
d. SP
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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