Utilization of Buton Natural Rock Asphalt as Additive of Bitumen Binder in Hot Mix Asphalt Mixtures

2013 ◽  
Vol 723 ◽  
pp. 543-550 ◽  
Author(s):  
Gatot Rusbintardjo
Keyword(s):  
Low Temperature ◽  
Softening Point ◽  
Hot Mix Asphalt ◽  
Asphalt Mixtures ◽  
Penetration Index ◽  
Natural Rock ◽  
Point Test ◽  
Marshall Stability ◽  
Temperature Susceptibility

In Buton Island, an island located in South-East Sulawesi Island in Indonesia is found about 700 million tons natural rock asphalt (NRA) which have not been maximally utilized yet. Buton-NRA contains 20 to 30% of bitumen. This paper reported the first part of the research on utilizing of Buton-NRA as additive of bitumen binder in hot mix asphalt (HMA) mixtures. Amount of 15, 20, 25, 30, 35, 50, and 65% of very fine of Buton-NRA was added into the bitumen, resulted Buton-NRA-Bitumens binder. Penetration and softening point test was conducted to get penetration index (PI) value, an index to determine the temperature susceptibility of the binder. The results show that the Buton-NRA-Bitumens binder has low temperature susceptibility. Use as binder in HMA mixtures also shown that the Buton-NRA-Bitumens binder can improve the performance of the mixtures. Marshall Stability and stiffness of the mixtures is higher compare to that of base bitumen binder, especially Buton-NRA-Bitumens binder with 50% of Buton-NRA, Marshall Stability reach 2374kg and stiffness 311kg.mm, while HMA mixtures with base bitumen (0% Buton-NRA) only has 1294kg of Marshall stability and 169kg/mm of stiffness.

Experimental Study on Polyphosphoric Acid (PPA) Modified Asphalt Binders

2010 ◽  
Vol 152-153 ◽  
pp. 288-294 ◽  
Author(s):  
Wei Dong Cao ◽  
Shu Tang Liu ◽  
Hong Lu Mao
Keyword(s):  
Low Temperature ◽  
Softening Point ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Point Test ◽  
Low Temperature Performance ◽  
Four Levels ◽  
Temperature Susceptibility

Polyphosphric acid (PPA) modified asphalt binders were produced in the laboratory using one base asphalt and four levels of PPA contents (0.6%, 1.0%, 1.5% and 2.0% by weight of base asphalt). Penetration test, softening point test, rotation viscosity test, creep test with bending beam rheometer (BBR) and four components test were carried out to study the performance of PPA modified asphalt binders and possible modification mechanism. The results indicate that the high-temperature performance of PPA modified asphalt binders are obviously improved and temperature susceptibility are decreased, but the low-temperature performance slightly decline compared with base asphalt. The PPA content has a very significant effect on softening point whereas it has no significant influence on low-temperature performance according to variance analysis (ANOVA). Finally, four components test reveals that the primary modification mechanism of PPA is the change of chemical composition of asphalt binder.

Properties of Asphaltic Concrete Containing Sasobit®

2014 ◽  
Vol 71 (3) ◽  
Author(s):  
Nurulain Che Mat ◽  
Ramadhansyah Putra Jaya ◽  
Norhidayah Abdul Hassan ◽  
Hasanan Md Nor ◽  
Md. Maniruzzaman A. Aziz ◽  
...  
Keyword(s):  
Softening Point ◽  
Hot Mix Asphalt ◽  
Resilient Modulus ◽  
Asphalt Mixtures ◽  
Asphaltic Concrete ◽  
Abrasion Loss ◽  
Conventional Tests ◽  
Modified Binder ◽  
The Stability ◽  
Marshall Stability

With increasing interest in the use of hot mix asphalt in the paving industry, more studies in this field for improvement of hot mix asphalt properties seem to be necessary. Hence, the main objective of this study was to investigate the effect of sasobit® content as modified binder in hot mix asphalt. 60/70 penetration grade asphalt was separately modified with sasobit® at different concentrations ranging from 0% to 4.5%. The influence of sasobit® on the hot mix asphalt mixtures properties were detected through conventional tests i.e. penetration and softening point. In addition, the Marshall stability, abrasion loss, and resilient modulus were also examined. Results indicated that the hot mix asphalt containing Sasobit® additive has significant affect in terms of penetration and softening point. Furthermore, the addition of Sasobit® seemed to improve the stability, abrasion loss and modulus of stiffness.

Improvement on Temperature Susceptibility of Matrix Asphalt Modified with Natural Rock Asphalt

2014 ◽  
Vol 1004-1005 ◽  
pp. 1512-1515
Author(s):  
Zhen Fu ◽  
Yuan Yuan Luan ◽  
Dan Dan Peng ◽  
Yi Fei Guo
Keyword(s):  
Softening Point ◽  
Temperature Index ◽  
Research Results ◽  
Modified Asphalt ◽  
Penetration Index ◽  
Natural Rock ◽  
Improvement Effect ◽  
Natural Asphalt ◽  
Temperature Susceptibility

In order to study the influence of natural rock asphalt on the temperature susceptibility of matrix asphalt, the effect of matrix asphalt modified with different dosage natural asphalt was analyzed by penetration index and viscosity temperature index. Research results show that the PI value and softening point of modified asphalt grow with increase of natural asphalt dosage, however viscosity temperature index (VTS) decreases gradually, which indicate that modified asphalt is less influenced by temperature. Namely, the temperature susceptibility is improved, and the improvement effect changes with the increase of natural asphalt dosage.

scholarly journals Evaluasi Kinerja Campuran Beraspal dengan Bitumen Hasil Ekstraksi Penuh dari Asbuton

2018 ◽  
Vol 24 (1) ◽  
pp. 62
Author(s):  
Nyoman Suaryana ◽  
Iwan Susanto ◽  
Yohannes Ronny ◽  
Ida Rumkita Sembayang
Keyword(s):  
Tensile Strain ◽  
Asphalt Mixtures ◽  
Rolled Sheet ◽  
Asphaltic Concrete ◽  
Natural Rock ◽  
Asphalt Mix ◽  
Marshall Stability ◽  
Oil Penetration ◽  
Hot Rolled ◽  
Large Deposits

Asbuton is a natural rock asphalt that can be found on the island of Buton in Southeast Sulawesi province, has a large deposits but not yet well utilized. This research aims to find out the performance of asphalt mixtures AC-WC (Asphaltic Concrete Wearing Course) and HRS-WC (Hot Rolled Sheet Wearing Course) using bitumen results from full extraction of asbuton. The research was done by experimental methods through laboratory tests then its performance was compared to convensional mixtures using asphalt oil with penetration grade of 60. The results obtained showed that the bitumen of asbuton did not meet the specification of bitumen based on penetration grade. Characteristics of hot mixture asphalt using bitumen of asbuton showed better performance in terms of the Marshall stability namely 1871 kg higher than the convensional hotmixture of asphalt, with 1100 kg for AC-WC and 1241.9 kg compared with 1094 kg for HRS-WC. In addition, the results of deformation resistance tests showed asphalt mix with pure asbuton  more resistant to rutting shown by higher dynamic stability value namely 4200 track/mm compared with 492 track/mm for AC-WC and 2739 track/mm compared with 325 track/mm. The modulus resilient value of mix with pure asbuton is also higher at temperature of 25°C and relatively the sameat temperatures of 35°C and 45°C. While the resistance of  fatigue for AC-WC and HRS-WC on the test tensile strain of 150 µs were relatively the same as hotmix asphalt using asphalt oil penetration grade of 60, but on test of  a larger tensile strain has worse fatigue resistance, especially for AC-WC.

scholarly journals Influence of Natural Fibers on the Performance of Hot Mix Asphalt for the Wearing Course of Pavement

2020 ◽  
Vol 8 (2) ◽  
pp. 57-63
Author(s):  
Omar T. Mahmood ◽  
Sheelan A. Ahmed
Keyword(s):  
Tensile Strength ◽  
Hot Mix Asphalt ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Flexible Pavement ◽  
Asphalt Mixtures ◽  
Palm Fiber ◽  
Marshall Test ◽  
Indirect Tensile ◽  
Marshall Stability

Cracking in the flexible pavement is a serious problem that reduces the service life of the roads pavement unless they are treated with great care. Since flexible pavement is very weaker in tension than in compression, it is usually necessary to consider the tensile stresses and some type of additives to improve asphaltpavement performance, and one of the most effective ways of improving asphalt pavement performance is to reinforce asphalt mixtures by incorporating natural fibers. The main objective of this study is to use palm fiber, which is locally available, in hot mix asphalt mixtures. To achieve this objective, the Marshall test and indirect tensile strength test were conducted on four asphalt mixtures with different types of natural fibers (Coconut, Corn, Palm, and Sisal), added in varying percentages 0.1, 0.2, 0.3, 0.4, and 0.5% and different lengths of fiber 0.5, 1, 1.5, and 2 cm. Based on the analyzed results, it can be concluded that the use of palm fiber increased the Marshall stability by 20% as compared with the conventional mixture and raised up the retained tensile strength ratio up to 92%. Finally, the use of 0.2% content of natural fiber at 1.5 cm length gave a better performance for the mixtures.

scholarly journals Preliminary Evaluation of Hot Mix Asphalt Containing Reclaimed Epoxy Asphalt Materials

2020 ◽  
Vol 12 (9) ◽  
pp. 3531
Author(s):  
Mohammed Alamri ◽  
Qing Lu ◽  
Chunfu Xin
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixtures ◽  
Asphalt Pavements ◽  
Preliminary Evaluation ◽  
Reclaimed Asphalt ◽  
Coarse Aggregates ◽  
Epoxy Asphalt ◽  
Asphalt Materials ◽  
Long Life ◽  
Marshall Stability

Designing long-life pavements and pavement recycling with reclaimed asphalt pavement (RAP) are two important strategies for improving the sustainability of asphalt pavements. Epoxy asphalt, as a proven long-life pavement material, is attracting attention from the pavement community for its use in road pavements. The recyclability of epoxy asphalt mixtures, however, has never been studied and has now become one concern in promoting the use of epoxy asphalt in road pavements. This study attempts to explore the performance of hot mix asphalt (HMA) containing reclaimed epoxy asphalt materials. Reclaimed epoxy asphalt was fabricated in the laboratory and incorporated into regular asphalt mixtures at various contents. Specimens were prepared and tested for their performance in comparison with mixtures without RAP. It was found that replacing the coarse aggregates in HMA with epoxy RAP up to 80% did not negatively affect its Marshall stability, tensile strength, and moisture resistance. The plastic deformation at failure of HMA, however, may increase with the increase in epoxy RAP content. At the current stage, the results from this study do not provide evidence to invalidate the use of epoxy RAP in HMA, at least at a coarse aggregate replacement rate of less than 40%.

EFFECT OF BIO-OIL FROM EMPTY FRUIT BUNCH ON PENETRATION INDEX OF ASPHALT BINDER

2015 ◽  
Vol 77 (23) ◽  
Author(s):  
Noor Azah Abdul Raman ◽  
Mohd Rosli Hainin ◽  
Norhidayah Abdul Hassan ◽  
Farid Nasir Ani ◽  
M.Naqiuddin M.Warid ◽  
...  
Keyword(s):  
Physical Properties ◽  
Softening Point ◽  
Oil Content ◽  
Asphalt Binder ◽  
Empty Fruit Bunch ◽  
Modified Asphalt ◽  
Penetration Index ◽  
Bio Oil ◽  
Potential Alternative ◽  
Temperature Susceptibility

Bio-oil which is derived from pyrolysis palm empty fruit bunch (EFB) is expected to be a potential alternative modifier for asphalt. This study focused on the effect of bio-oil on the penetration index (PI) asphalt. Bio-oil is blended between 2%-10% by weight of virgin asphalt penetration grade 80/100. Physical properties are measured and compared with virgin asphalt by the conventional physical binder test – softening point and penetration. The penetration index (PI) values is calculated to identify the typical values of asphalt type. Based on the findings, it was found that increased bio-oil content can effectively soften the asphalt at the same time maintain the temperature susceptibility. Modification asphalt is still within the grade 80/100 PEN with the addition of 10% maximum of bio oil. The stiffness of modified asphalt need to be further improved by addition polymer for better asphalt binder properties.

scholarly journals Introducing Buton Natural Rock Asphalt New Materials for Bitumen Mofification and Soil Stabilization

2018 ◽  
Vol 1 (2) ◽  
pp. 88
Author(s):  
Gatot Rusbintardjo ◽  
Nur Izzi M. Yusoff ◽  
Arafat Sulaiman Yerro
Keyword(s):  
Soil Stabilization ◽  
Clay Soil ◽  
Mineral Resources ◽  
Test Results ◽  
Penetration Index ◽  
Natural Rock ◽  
Directorate General ◽  
Natural Asphalt ◽  
Road Work ◽  
Temperature Susceptibility

Abstract:The natural asphalt in the world which can be explored until today is Buton Natural Rock Asphalt (BNRA). The other natural asphalt like Trinidad Lake Asphalt   Based on survey conducted by Directorate General of Mining Ministry of Energy and Mineral Resources Republik of Indonesia, amount of 650 million ton of BNRA are found in Buton island, yet until 92 years since BNRA in Buton Island discover by Hetzel, a Dutch Geolog, only 3.4 ton  that have been explored to be used for road work. This paper reported the using of  BNRA to modify bitumen to improve their properties in order to resist  the high temperature rutting, and to stabilize clay soil, to  improve their strenght. Bitumen penetration grade 80/100 which will be modified was blend by 15 to 65% of BNRA in increments of 5% by weight of bitumen, and to stabilized clay soil, amount of 2% to 8% in increements of 2% BNRA by weight of soil was added. To determine Penetration Index (PI) of neat bitumen and alsobitumen modified with BNRA,  penetration at 250 Celcius and softening point test were conducted. Penetration Index is the parameter to measure the temperature susceptibility of binder. The test results show that ...

Sign in / Sign up

Export Citation Format

Share Document