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

200500

 

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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