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 9.26QP
An asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk density of the mix is 147 pcf, what is the percent voids in the total mix?
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An asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk density of the mix is 147 pcf, what is the percent voids in the total mix?
An asphalt concrete mixture includes 94% aggregate by weight. The specific
gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk den-sity of the mix is 2355 kg/m3
, what is the percent voids in the total mix?
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.
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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- A portland cement concrete mix requires mixing sand having a gradationfollowing the midpoint of the ASTM gradation band (Table 5.4) and gravelhaving a gradation following the midpoint of size number 467 of the ASTMgradation band (Table 5.5) at a ratio of 2:3 by weight. On a 0.45 power gradation chart, plot the gradations of the sand, gravel, and the blend. Is the gradation of the blend well graded? If not, what would you call it?arrow_forwardThe mixture maximum specific gravity at 5.0 % asphalt binder content is 2.495. The asphalt specific gravity is 1.030. Compute the aggregate effective specific gravity. Estimate the mixture maximum specific gravity at 6.0 % asphalt binder content.arrow_forwardAn asphalt concrete specimen has the following properties:Asphalt content = 5.5% by total weight of mixBulk specific gravity of the mix = 2.475Theoretical maximum specific gravity = 2.563Bulk specific gravity of aggregate = 2.689 Ignoring absorption, calculate the percents VTM, VMA, and VFA.arrow_forward
- HIGHWAY ENGINEERINGAn asphaltic concrete layer is compacted to density 2.350 gm/cm3. The asphalt (Gs = 1.03) content is 6 % by weight of total mix, bulk GA of combined aggregate is 2.650, and the absorbed asphalt by weight of aggregate is 1%. Determine % air voids in total mix (V.T.M), voids in mineral aggregate (V.M.A), and voids filled with asphalt (V.F.A).arrow_forwardAn aggregate blend is composed of 65% coarse aggregate by weight (SG 2.65), 30% fine aggregate (SG 2.70), and 5% filler (SG 2.75). The compacted specimen contains 6% asphalt binder (SG 105) by weight of total mix, and has a bulk densit of 2.255 Mg/m&3. Ignoring absorption.a. What is the percent voids fill with asphalt?b. What is the percent voids in mineral aggregates?c. What is the percent voids in total mix?arrow_forwardThe maximum theoretical specific gravity of an asphalt concrete is 2.550. Other components are specified as follows: Gmm =a.5s o Apparent Specific Gravity Gma Material Specific Gravity G % by Weight Asphalt cement Limestone dust 6.3 13.7 30.4 1.020 2.820 2.650 2.650 2.650 2.905 Sand Course aggregates 2.873 49.6 9. What is the bulk specific gravity of the aggregates? a) 2.73 b) 2.67 c) 2.69 d) 2.75 Gs b 10. What is the air void content if the bulk specific gravity is of the mixture is 2.340? a) 8.0% b) 8.5% c) 8.6% d) 8.2% 11. What is the effective specific gravity of the aggregates? а) 2.836 b) 2.816 c) 2.826 d) 2.866 12. What is the asphalt absorption? a) 1.90% b) 2.18/% c) 2.23% d) 2.13%arrow_forward
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