Materials for Civil and Construction Engineers (4th Edition)
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 9.29QP
To determine

The percent voids in total mix, percent voids in mineral aggregate and the percent voids filled with asphalt.

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A compacted asphalt concrete specimen has the following properties:a. Asphalt content = 5% by total weight of the mixb. Bulk specific gravity of the mix = 2.500c. Theoretical maximum specific gravity = 2.610d. Bulk specific gravity of the aggregate = 2.725 Ignoring absorption, compute the percents VTM, VMA, and VFA.
An asphalt concrete specimen has the following properties: • Asphalt content = 5.5% by total %3D weight of mix • Bulk specific gravity of the mix = 2.475 • Theoretical maximum specific of gravity = 2.563 • Bulk specific gravity aggregate = %3D 2.689 Ignoring absorption, compute the percent VFA Select one: A. 67.2% B. 68.1% C. 76.3% D. 73.8%
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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