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PT BUTON ASPHALT INDONESIA (BAI)
Prominent Producer of Natural Asphalt
The “Asbuton” (Buton Asphalt)The “Asbuton” (Buton Asphalt)Asbuton is the name of ROCK ASPHALT from BUTON ISLAND South East Sulawesi, Indonesia.
• Naturally occurred from the ground • Consist of high quality natural bitumen (20%) and
limestone (80%)• Two type of Asbuton : Kabungka (Hard) and Lawele (Soft)
BUTON ASPHALT INDONESIA (BAI)on Buton island, Indonesia
Bau bauBau bau
LaweleLawele
KabungkaKabungka
LAWELE MINE
PT KARYA MEGAH BUTONMining operations
KABUNGKA MINE
PT PUTINDO BINTECHMining operations
Asbuton PropertiesThe BitumenAsbuton PropertiesThe Bitumen
Asbuton TLA
5 0 ‐ 4
93 ‐ 99
1.39 – 1.44
‐33 ‐ 37‐
79.5
1.05
22551.325.61
Penetration 25oC, 100 gr, 5 sec.
Softening Point, oC
Specific Gravity
Flash Point , oCAsphalten,%Nitrogen Bases, %
Asbuton PropertiesThe MineralAsbuton PropertiesThe Mineral
sieve number
opening (micron)
4 4750 1008 2360 9916 1180 9230 600 8450 300 69
100 150 48200 74 38
3730103
% passing Kabungka Asbutonsieve
numberopening (micron)
4 4750 1008 2360 9916 1180 9230 600 8450 300 69
100 150 48200 74 38
3730103
% passing Kabungka Asbuton
Compound RangeCaCO3 81,62 - 85,27MgCO3 1,98 - 2,25CaSO4 1,25 - 1,70
CaS 0,17 - 0,33Water 1,30 - 2,15SiO2 6,95 - 8,25
Al2O3 + Fe2O3 2,15 - 2,84Residue 0,83 - 1,12
Compound RangeCaCO3 81,62 - 85,27MgCO3 1,98 - 2,25CaSO4 1,25 - 1,70
CaS 0,17 - 0,33Water 1,30 - 2,15SiO2 6,95 - 8,25
Al2O3 + Fe2O3 2,15 - 2,84Residue 0,83 - 1,12
Improving Bitumen Quality with AsbutonImproving Bitumen Quality with Asbuton
Research shows that the addition of ASBUTON into Conventional Asphalt or Oil Asphalt mixture can highly improve the bitumen quality
The improved properties are:• Increased Softening Point• Improved Adhesion
Research shows that the addition of ASBUTON into Conventional Asphalt or Oil Asphalt mixture can highly improve the bitumen quality
The improved properties are:• Increased Softening PointSoftening Point• Improved AdhesionAdhesion
Role of Asbuton Mineral in Asphalt MixtureRole of Asbuton Mineral in Asphalt Mixture
Mineral asbuton, which mostly consist of LIMESTONE, will act as a FILLER.Filler’s roles in Asphalt Mixture:• As an binder extenderbinder extender• To make the binder more stiff
Stiffer Binder in turn will make the mixture more resistance to permanent deformation
Recent test on SUPERPAVE (West Track Full Scale Test) shows that amount filler is important for coarse mix. Lack of filler will cause premature rutting to Coarse Mix.
Stiffer Binder in turn will make the mixture more resistance to permanent deformation
Recent test on SUPERPAVE (West Track Full Scale Test) shows that amount filler is important for coarse mix. Lack of filler will cause premature ruttingpremature rutting to Coarse Mix.
ASBUTONis Asphalt Modifier with dual roles
ASBUTONis Asphalt Modifier with dual roles
As a Bitumen Improver
As a High Quality Filler
As a Bitumen Improver
As a High Quality Filler
Buton Rock Asphalt, or simply BRA, is processed buton asphalt (Asbuton) so that the bitumen is emerged from the mineral’s surface
and become an ACTIVE binder
Buton Rock Asphalt, or simply BRA, is processed buton asphalt (Asbuton) so that the bitumen is emerged from the mineral’s surface
and become an ACTIVE binder
BRA
Aggregate
Application of BRAApplication of BRA
BRA is used in many asphalt mixture types such as:-Asphalt Concrete-Hot Rolled Sheet-Stone Mastic Asphalt
Positioned as a Wearing Course, Binder Course or Asphalt Base Course
Application’s dose of BRA is 2% to 10%
For Hot Mix or even Cold Mix (using cutback)
Mixture Design: No change as conventional asphalt concrete
BRA is used in many asphalt mixture types such as:-Asphalt Concrete-Hot Rolled Sheet-Stone Mastic Asphalt
Positioned as a Wearing Course, Binder Course or Asphalt Base Course
Application’s dose of BRA is 2% to 10%
For Hot Mix or even Cold Mix (using cutback)
Mixture Design: No change as conventional asphalt concrete
BRA goes directly to pug mill via filler silo or filler elevator.Easy handling. No extra equipment neededBRA goes directly to pug mill via filler silo or filler elevator.Easy handling. No extra equipment needed
ENERGYheat the bitumenup to140 Celsius
ENERGYheat the
aggregates upto180 Celsius
AGGREGATES’ INPUT:Water content:decide temp heating of the drierGRADATION DANABSORPTION:decide on bitumen content
SCREENS:decide on screen’sefficiencylessen the quantity ofoversize/overflow
MIXER:decide on mixingtime ->productioncapacity
Typical Aggregate Gradation for Asphalt Concrete with BRATypical Aggregate Gradation for Asphalt Concrete with BRA
Combined Gradation (0.45 power chart)
0,00
10,00
20,00
30,00
40,00
50,00
60,00
70,00
80,00
90,00
100,00
50,037,519,09,5 25,04,752,361,180.60.3 12,50.075
2"1 1/2"3/4"3/8" 1"#4#8#16#30#50 1/2"#200
Performance of BRAPerformance of BRA
Softening Point of Bitumen
48.253.9
59.3
67
0
10
20
30
40
50
60
70
80
0% 10% 15% 10% + filler
BRA content by mass
Sof
teni
ng P
oint
(cel
sius
)
Performance of BRAPerformance of BRA
Dynamic Stability
3315.8
5727.3
0
1000
2000
3000
4000
5000
6000
7000
AC AC + 10% BRA
pass
/mm
Gorontalo : Isimu Gorontalo : Isimu –– Paguyaman (2006)Paguyaman (2006)
Dlm Kota Palangka Raya Dlm Kota Palangka Raya ––Kalimantan TengahKalimantan Tengah
Pasuruan Jawa Timur (2006)Pasuruan Jawa Timur (2006)
PROJECT LISTJateng (2008)
Sukoharjo
Glonggong – Giriwoyo
Purbalingga
Karang Pucung –Wangon
Purwokerto
Batas Jabar – Karang Pucung
Sulawesi Tenggara (2007‐2008)
Buton
Bau‐bau – Mataompana
Mataompana – Todang
Bambaeya – Simpang Kasipute
Labundoua – Pure ‐Maligano
Maliganon – Labuan
Kendari
Wolo – Lausua
Akses Bandara Kendari
Wua‐wua
Kalimantan Timur (2008)
Balikpapan
Kademan – Kuaro
Kalimantan Tengah
Palangkaraya (2006)
Jalan Imam Bonjol, Arut, S. Parman, A. Yani
Pangkalan Bun (2008)
Jawa Timur
Pasuruan
Pasuruan – Pilang (Pantura) 2006
Kejayan – Purwosari (2006)
Gempol – Pasuruan (2008)
Ngawi (2008)
Mantingan – Ngawi
Madiun (2008)
Padangan – Ngawi
Banyuwangi (2007)
Bajulmati – Ketapang (Bts. Kab. Banyuwangi)
Gorontalo (2006‐2008)
Isimu – Paguyaman
Paguyaman – Pel. Anggrek
Atinggola – Kwandang
Gorontalo – Tuladaa
Sulawesi Tengah
Palu
Wosu – Bungku (2007)
Ampibabo – Kasimbar (2008)
Kolonodale
Tomota – Bateleme – Kolonodale (2007)
Poso
Tompira –Wosu (2007)
Makaliwe Office ParkJl. DR. Makaliwe Raya 16 A-BJakarta 11450
Email: [email protected]: [email protected]
Tel. (021) 56959150, 56959151Fax. (021) 56959199Hotline: 081585517694
