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 9.22QP
To determine
The Bulk specific gravity of the specimen.
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An asphalt concrete specimen has a mass in air of 1353.9 g, mass in water of 792.4 g, and saturated surface-dry mass of 1342.2 g. Calculate the bulk specific gravity of the specimen.
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.
Discuss five different desirable characteristics of aggregate used in asphalt concrete.
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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- The 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_forwardIt is known that a concrete mix has 180 kg/m3 of water, 315 kg/m3 of sand. What is the coarse aggregate content in kg/m³, if the air content in the concrete is ignored? Assume the specific gravities of cement, fines, sand and coarse aggregate to be 3.15, 2.98, 2.64, and 2.74 respectively.arrow_forwardConcrete is required for a building foundation that is placed on a soil with high chloride content. The design calls for a minimum rebar spacing of 100 mm and a concrete cover of 75 mm. Which one of the following sizes is considered an acceptable nominal maximum size for aggregates? O A) 43 mm O B) 39 mm O9 28 mm O D) 49 mm A concrete pavement in Alberta will be exposed to freeze-thaw and de-icing salts during its service life. Which of the following exposure classes best describes the environmental conditions that the concrete will be exposed to? OA F-2 O B) A-2 O D) S-2 Strength of the normal weight concrete depends mainly on: OA) Strength of the aggregate O B) Mixing time OC) Purity of the mixing water O D) Water to cement ratio A fine broom finish is done only for aesthetic purposes. OA) True O B) False Oarrow_forward
- An 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_forwardAn asphalt concrete specimen has the following properties:Asphalt content=5.3% by total weight of mixBulk specific gravity of the mix=2.442Theoretical maximum specific gravity=2.535Bulk specific gravity of aggregate=2.703Calculate the percents VTM, VMA, and VFA.arrow_forward7. A sample of fine aggregate weighs 544 g when SSD and 530 g when OD. The flask weighs 654 g when filled with water and 985 g when filled with fine aggregate and water. Calculate the bulk specific gravity, apparent specific gravity, and absorption.arrow_forward
- 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 following information is available from a specific gravity test on coarse aggregate: wt of SSD CA = 6135 g wt of submerged CA = 3901 g wt of oven-dry CA = 6008 g Calculate the bulk specific gravity (SSD), bulk specific gravity, apparent specific gravity, and absorption (SSD) of the materialarrow_forwardI need the answer as soon as possiblearrow_forward
- 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%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_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_forward
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