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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Chapter 5, Problem 5.14QP
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 =
Weight of empty bucket = 20.3 lb
Weight of bucket filled with dry rodded coarse aggregate:
Trial 1 = 76.6 lb
Trial 2 = 75.1 lb
Trial 3 = 78.8 lb
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
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5.14
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 = ¹/2 ft³
Weight of empty bucket = 20.3 lb
Weight of bucket filled with dry rodded coarse aggregate:
Trial 176.6 lb
Trial 275.1 lb
Questions and Problems 217
Trial 3 78.8 lb
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.
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 = ½ ft³
Weight of empty bucket = 20.3 lb
Weight of bucket filled with dry rodded coarse aggregate
Trial 1 = 69.6 lb
Trial 2 = 68.2 lb
Trial 3 = 71.6 lb
a. Calculate the average dry-rodded unit weight
b. If the bulk dry specific gravity of the aggregate is 2.620, calculate the per-
cent 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 = 0.481
%3D
Weight of empty bucket = 22.107 Ib
%3!
Weight of bucket filled with dry rodded coarse
aggregate
Trial 1 = 69.259 lb
%3D
Trial 2 = 70.567 lb
Trial 3 = 69.708 lb
• If the bulk dry specific gravity of the aggregate is
2.727, calculate the percent voids for trial 2.
where unit weight of water is 62.40
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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