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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305577398
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Textbook Question
Chapter 18, Problem 8P
Given four different types of aggregates to be used to produce a blended aggregate for use in the manufacture of asphaltic concrete, determine the bulk specific gravity of the aggregate mix.
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Questions 30 is based on the information below:
An asphalt concrete mix design has the following properties. The densities of the binder and aggregate
are 1.090 g/cm³ and 2.760 g/cm³, respectively. The bulk density of the entire mix is 2.220 g/cm³.
The percent binder content is 6.2% (by weight). Assume no absorption.
V₁= 1.0 cm³
Volume
Vv
Vb
Vs
AIR
Binder
Aggregate
Mass
Mb
Ms
Mt
30. As an engineer, you are asked to use this mix design for a 25 kilometer-long section of roadway where
the total pavement width is 8.0 meters and the thickness is 15 centimeters. What is the (a) total volume
of binder and (b) the total volume of aggregate that you would need to purchase? Also, determine the
(c) total %air voids in the mix.
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Chapter 18 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
Ch. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Prob. 4PCh. 18 - Given the specifications for an asphaltic concrete...Ch. 18 - Given the particle size distributions of two...Ch. 18 - Given the particle size distributions of two...Ch. 18 - Given four different types of aggregates to be...Ch. 18 - Prob. 9PCh. 18 - Prob. 10P
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- Aggregates from three sources having the properties shown in Table were blended at a ratio of 25:60:15 by weight. Determine the properties of the aggregate blend.arrow_forwardAn asphalt concrete specimen has the following properties:asphalt content = 5.9% by total weight of mix bulk specific gravity of the mix = 2.457 theoretical maximum specific gravity = 2.598 bulk specific gravity of aggregate = 2.692Calculate the percents VTM, VMA, and VFA.arrow_forwardIn an aggregate mix, the proportions of coarse aggregate, fine aggregate and mineral filter are 55%, 40% and 5%, respectively. The values of bulk specific gravity of the coarse aggregate, fine aggregate and mineral filler are 2,55, 2,65 and 2.70, respectively. The bulk specific gravity of the aggregate mix (round off to two decimal places) isarrow_forward
- Please in 15 minarrow_forwardThe mass of aggregate B has been reduced and weighed to conduct an aggregate test shown in Table 2. (a) Calculate the: (i) dry bulk specific gravity (ii) SSD bulk specific gravity,arrow_forwardMax specific gravity of mixture = 2.48 and following details are given. Bulk specific gravity aggregates in the mix and asphalt absorbed (%) are respectively, Material Specific gravity Mix Composition Asphalt Cement 1.02 6.40 Coarse Aggregate 2.51 52.35 Fine Aggregate 2.74 33.45 Mineral filler 2.69 7.80 2.603 and 3.10 2.538 and 2.60 2.603 and 2.08 2.538 and 3.20arrow_forward
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