solve question 3 please Q1) A rural 4-lane highway is to be built between two towns. Select the binder performance gradeto meet the Superpave criteria for a reliability level of 98%, given the following information aboutthe project:Latitude = 46.77Tair (max) (Seven-day average high air temperature) = 33.1 °CStandard deviation of the seven-day high air temperature = 1.8 °CTair(min) (1-day minimum air temperature) = -21.3 °CStandard deviation of the 1-day minimum air temperature = 3.3 °CQ2) The following results were obtained from testing a certain asphalt binder:OriginalAsphaltRTFO aged PAVaged| asphaltasphaltDSRG' (kPa)| 8 (*)BBRS@ 60-sec (MPa)0.982.16000757060300450650m @ 60-sec0.60.50.4DTTFailure Strain (%) | 2.5 %2 %1.2%Determine if the asphalt meets the Superpave specification requirements to resist the followingdistresses:(a) Rutting(b) Fatigue cracking(c) Low temperature crackingQ3) You are required to determine if a certain asphalt can be graded as PG 58 - 28. What aging1equipment and testing temperatures should use for the following tests? Explain the rational behindselecting the above testing temperatures.a) Dynamic Shear Rheometer for rutting analysis.b) Dynamic Shear Rheometer for fatigue cracking analysis.c) Bending Beam Rheometer for low temperature cracking analysis.d) Direct Tension Tester for low temperature cracking analysis.

A binder classified PG58-28 would meet the required physical properties at pavement temperatures as…

Answered: solve question 3 please

Engineering

Civil Engineering

solve question 3 please

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter8: Intersection Control

Section: Chapter Questions

Problem 8P

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Concept explainers

Measuring carpentry and miscellaneous items

The modification of planning and drawing of the construction project into the various descriptions and quantities to estimate the value, cost, and price of the project is known as measurement. The quantity supervisor produces the details of the quantities to the contractor or subcontractor to measure the cost of the work and determine the profit of the contractor or subcontractor. The measurement of the construction work depends on its type, usage, and stages in the project. In the early stage of the project, the details of the project depend on the general parameters. As the work starts, more information is searched and the details are dependent on the elemental estimates of the work.

Question

solve question 3 please

Q1) A rural 4-lane highway is to be built between two towns. Select the binder performance grade
to meet the Superpave criteria for a reliability level of 98%, given the following information about
the project:
Latitude = 46.77
Tair (max) (Seven-day average high air temperature) = 33.1 °C
Standard deviation of the seven-day high air temperature = 1.8 °C
Tair(min) (1-day minimum air temperature) = -21.3 °C
Standard deviation of the 1-day minimum air temperature = 3.3 °C
Q2) The following results were obtained from testing a certain asphalt binder:
Original
Asphalt
RTFO aged PAV
aged
| asphalt
asphalt
DSR
G' (kPa)
| 8 (*)
BBR
S@ 60-sec (MPa)
0.98
2.1
6000
75
70
60
300
450
650
m @ 60-sec
0.6
0.5
0.4
DTT
Failure Strain (%) | 2.5 %
2 %
1.2%
Determine if the asphalt meets the Superpave specification requirements to resist the following
distresses:
(a) Rutting
(b) Fatigue cracking
(c) Low temperature cracking
Q3) You are required to determine if a certain asphalt can be graded as PG 58 - 28. What aging
1
equipment and testing temperatures should use for the following tests? Explain the rational behind
selecting the above testing temperatures.
a) Dynamic Shear Rheometer for rutting analysis.
b) Dynamic Shear Rheometer for fatigue cracking analysis.
c) Bending Beam Rheometer for low temperature cracking analysis.
d) Direct Tension Tester for low temperature cracking analysis.

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