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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Question
Chapter 9, Problem 9.40QP
(a)
To determine
The tensile strength of each specimen
(b)
To determine
The average tensile strength of the conditioned and unconditioned specimen.
(c)
To determine
The tensile strength ratio (TSR).
(d)
To determine
Does the mix pass the super pave criteria for the moisture susceptibility.
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Using the AASHTO T 283 test, three HMA specimens were freeze–thawconditioned and three were unconditioned. All the specimens had a diameterof 150 mm. Table P9.40 shows the thickness and load at failure of each specimen. Determine:a. The tensile strength of each specimen in MPa.b. The average tensile strength of the conditioned and unconditionedspecimens.c. The tensile strength ratio (TSR).d. Does the mix pass the Superpave criteria for moisture susceptibility?
A1
Copy the sketch of the tensile stress-strain test (Figure A1) results for a
waisted metallic specimen and indicate the locations representing maximum
stress (A), ultimate strain to failure (B), and 0.2% proof (yield) stress (C), and
calculate the Young's modulus of the material.
Figure A1
300
250
200
150
100
50
0
Stress (MPa)
0.2
0.4
0.6
8.0
Strain (%)
10.0
Using the AASHTO T 283 test, three HMA specimens were freeze–thaw conditioned and three were unconditioned. All the specimens had a diameter of 150 mm. Table shows the thickness and load at failure of each specimen. Determine:a. The tensile strength of each specimen in MPa.b. The average tensile strength of the conditioned and unconditionedspecimens.c. The tensile strength ratio (TSR).d. Does the mix pass the Superpave criteria for moisture susceptibility?
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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