What standard PG asphalt binder grade should be selected under the following conditions: a. The seven-day maximum pavement temperature has a mean of 62°C and a minimum pavement temperature of -15°C.  (table9.2) b. According to part a, what is your recommendation for 20 million ESALs and 50 km/h speed?  (table ESALs) c. For 50 million ESALs and 80 km/h speed. (table ESALs)

Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter2: Atoms, Chemical Bonding, Material Structure, And Physical Properties
Section: Chapter Questions
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What standard PG asphalt binder grade should be selected under the following conditions:
a. The seven-day maximum pavement temperature has a mean of 62°C and a minimum pavement temperature of -15°C.  (table9.2)

b. According to part a, what is your recommendation for 20 million ESALs and 50 km/h speed?  (table ESALs)

c. For 50 million ESALs and 80 km/h speed. (table ESALs)

 

 

Traffic Speed km/h
Design ESALS
(million)
<20
20-70
>70
<0.3
0.3-30
1
>30
2
1
Transcribed Image Text:Traffic Speed km/h Design ESALS (million) <20 20-70 >70 <0.3 0.3-30 1 >30 2 1
TABLE 9.2 Binder Grades in the Performance Grade
Specifications
High Temperature
Grades (°C)
Low Temperature Grades (°C)
-34, -40, –46
-10, -16, -22, -28, –34, -40,-46
-16, -22, -28, –34, -40
-10, -16, -22, -28, –34, –40
-10,-16, -22, -28, –34, –40
-10, -16, -22, –28, –34
PG 46
PG 52
PG 58
PG 64
PG 70
PG 76
PG 82
-10, -16, -22, -28, -34
Transcribed Image Text:TABLE 9.2 Binder Grades in the Performance Grade Specifications High Temperature Grades (°C) Low Temperature Grades (°C) -34, -40, –46 -10, -16, -22, -28, –34, -40,-46 -16, -22, -28, –34, -40 -10, -16, -22, -28, –34, –40 -10,-16, -22, -28, –34, –40 -10, -16, -22, –28, –34 PG 46 PG 52 PG 58 PG 64 PG 70 PG 76 PG 82 -10, -16, -22, -28, -34
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ISBN:
9781111988609
Author:
Charles Gilmore
Publisher:
Cengage Learning