Q2) The following results were obtained from testing a certain asphalt binder:RTFO aged PAVOriginalAsphaltagedasphaltasphaltDSRG° (kPa)8 (C)0.982.16000757060BBRS@ 60-sec (MPa) | 300M@ 60-sec4506500.60.50.4DTTFailure 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 cracking

After analyzing the test results, the following conclusions were made,

Q2) The following results were obtained from testing a certain asphalt binder: Original Asphalt RTFO aged PAV aged asphalt asphalt DSR G° (kPa) 8 (C) 0.98 2.1 6000 75 70 60 ВBR S@ 60-sec (MPa) | 300 м@ 60-sec DTT Failure Strain (%) 2.5 % 450 650 0.6 0.5 0.4 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

Q2) The following results were obtained from testing a certain asphalt binder: Original Asphalt RTFO aged PAV aged asphalt asphalt DSR G° (kPa) 8 (C) 0.98 2.1 6000 75 70 60 ВBR S@ 60-sec (MPa) | 300 м@ 60-sec DTT Failure Strain (%) 2.5 % 450 650 0.6 0.5 0.4 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

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Asphalt Binders and Mixtures

Asphalt binders are subsidiary products procured during the refining process of petroleum while manufacturing gasoline, diesel, and similar petroleum products. Asphalt binders are obtained from the residue that remains after the distillation of petroleum, this residue is further subjected to steam distillation and oxidation to remove the traces of gas oil present in the residue. Certain additives or modifiers are also added to asphalt binders to alter them to suit different applications.

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Q2) The following results were obtained from testing a certain asphalt binder:
RTFO aged PAV
Original
Asphalt
aged
asphalt
asphalt
DSR
G° (kPa)
8 (C)
0.98
2.1
6000
75
70
60
BBR
S@ 60-sec (MPa) | 300
M@ 60-sec
450
650
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

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