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 9, Problem 9.35QP
To determine
The design asphalt content according to the Marshall procedure.
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The Marshall method was used to design an asphalt concrete mixture. A PG 64-22
asphalt cement with a specific gravity (Gp) of 1.031 was used. The mixture contains
a 9.5 mm nominal maximum particle size aggregate with a bulk specific gravity (Gab)
of 2.696. The theoretical maximum specific gravity of the mix (Gmm) at asphalt con-
tent of 5.0% is 2.470. Trial mixes were made with average results as shown in the
following table:
Asphalt Content (P.)
(% by Weight of Mix)
Bulk Specific
Gravity (Gmb)
Corrected
Stability (kN)
Flow (0.25 mm)
4.0
2.360
6.3
4.5
2.378
6.7
10
5.0
2.395
5.4
12
5.5
2.405
5.1
15
6.0
2.415
4.7
22
Determine the design asphalt content using the Asphalt Institute design criteria for
medium traffic (Table 9.15). Assume a design air void content of 4% when using
Table 9.16.
The Marshall method was used to design an asphalt concrete mixture. A PG 64-22 asphalt cement with a specific gravity (Gb) of 1.031 was used. The mixture contains a 9.5 mm nominal maximum particle size aggregate with a bulk specific gravity (Gsb) of 2.696. The theoretical maximum specific gravity of the mix (Gmm) at asphalt content of 5.0% is 2.470. Trial mixes were made with average results as shown in the following table:Determine the design asphalt content using the Asphalt Institute design criteria formedium traffic Table . Assume a design air void content of 4% when usingTable
The mix design for an asphalt concrete mixture requires 2 to 6% minus
0.075 mm. The three aggregates shown in Table P.5.34 are available.
TABLE P5.34
Minus 0.075 mm
Coarse
0.5%
Intermediate
1.5%
Fine Aggregate
11.5%
Considering that approximately equal amounts of coarse and intermediate
aggregate will be used in the mix, what is the percentage of fine aggregate that
will give a resulting minus 0.075 mm in the mixture in the middle of the
range, about 4%?
Chapter 9 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 9 - Prob. 9.1QPCh. 9 - Prob. 9.2QPCh. 9 - Prob. 9.3QPCh. 9 - Prob. 9.4QPCh. 9 - Prob. 9.5QPCh. 9 - Prob. 9.6QPCh. 9 - Prob. 9.7QPCh. 9 - What are the engineering applications of each of...Ch. 9 - Prob. 9.9QPCh. 9 - Prob. 9.10QP
Ch. 9 - Prob. 9.11QPCh. 9 - Prob. 9.12QPCh. 9 - Prob. 9.13QPCh. 9 - Prob. 9.14QPCh. 9 - Prob. 9.15QPCh. 9 - Prob. 9.16QPCh. 9 - Prob. 9.17QPCh. 9 - Prob. 9.18QPCh. 9 - What are the objectives of the asphalt concrete...Ch. 9 - Prob. 9.20QPCh. 9 - Prob. 9.21QPCh. 9 - Prob. 9.22QPCh. 9 - Prob. 9.23QPCh. 9 - Prob. 9.24QPCh. 9 - Prob. 9.25QPCh. 9 - An asphalt concrete mixture includes 94% aggregate...Ch. 9 - Prob. 9.27QPCh. 9 - Prob. 9.28QPCh. 9 - Prob. 9.29QPCh. 9 - Prob. 9.30QPCh. 9 - Based on the data shown in Table P9.31, select the...Ch. 9 - Based on the data in Table P9.32, determine the...Ch. 9 - Given the data in Table P9.33, select the blend...Ch. 9 - The Marshall method of mix design has been widely...Ch. 9 - Prob. 9.35QPCh. 9 - Prob. 9.36QPCh. 9 - Prob. 9.37QPCh. 9 - Prob. 9.38QPCh. 9 - Prob. 9.39QPCh. 9 - Prob. 9.40QPCh. 9 - Prob. 9.41QPCh. 9 - Prob. 9.42QPCh. 9 - Prob. 9.43QPCh. 9 - What is the purpose of adding fly ash to asphalt...Ch. 9 - Prob. 9.45QPCh. 9 - Prob. 9.47QPCh. 9 - Prob. 9.48QP
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