 |
ASBUTON PERFORMANCE
The performance of Asphalt of Buton has been consistent in all cases
in which it has been applied and has also proven to provide superior
performance especially in its stability. A Mixture Test with Modifier
Buton Epure BE-31 was conducted by UGM and IRRC (Indonesia Road
Research Centre) giving performance result as shown in Table 1. below.
Table 1. Result of Mixture Test with
Modifier BE-31 (31% BE-31 +
24% PA)
|
No. |
Test |
Result |
Specification |
|
IRRC |
UGM |
BM WC1
1998 |
AI (SP-2)
1996 |
AI MS 2
1995 |
|
1. |
Content of
BE-55PG
(% by weight of
aggregate) |
13.49 |
13.40 |
|
|
|
|
2. |
Asphalt Content
(% by weight of
mix) |
6.71 |
6.71 |
|
|
|
|
3. |
Content of
Field Asbuton Extract
(% by weight of
mix) |
5.18 |
5.49 |
|
|
|
|
4. |
Volume Gravity
(g/cc) |
2.237 |
2.291 |
|
|
|
|
5. |
Maximum
Specific Gravity (g/cc) |
2.471 |
2.391 |
|
|
|
|
6. |
Stability (kg) |
1.653 |
1.811 |
min. 800 |
|
816.1 |
|
7. |
Stability
(Newton) |
16,200 |
17,740 |
|
|
8,006 |
|
8. |
Flow (mm) |
5.40 |
3.65 |
min. 2 |
|
2
–
4 |
|
9. |
Marshall
Quotient (kg/mm) |
306 |
496 |
200–500 |
|
– |
|
10. |
Void in Mineral
Aggregate, VMA
(%) |
13.22 |
16.57 |
min. 16 |
min. 13 |
min. 13 |
|
11. |
Void in
Mixture, VIM (%) |
3.97 |
4.05 |
3
–
5 |
4 |
3
–
5 |
|
12. |
Void in Field
of Asphalt, VFA
(%) |
70.00 |
75.55 |
min. 65 |
65
–
78 |
65
–
75 |
|
13. |
Compacting (%) |
96.03 |
95.94 |
|
<
98 |
– |
|
Legend: |
|
|
MBE-31BSS (as
modifier) |
= 35% |
|
BE-55PG (as binder) |
= 65% |
|
PA |
= Paving Asphalt |
|
UGM |
= Gadjah Mada
University |
|
IRRC |
= Indonesia Road
Research Center |
|
BM WC1 |
= Bina Marga
Wearing Course |
|
AI (SP-2) |
= Asphalt Institute
(Superpave-2) |
|
AI MS 2 |
= Asphalt Institute
Marshall Specification |
END
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