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PENGARUH LINGKUNGAN TROPIS INDONESIA PADA PENUAAN ASPAL DAN MODULUS KEKAKUAN RESILIEN CAMPURAN BERASPAL R. Anwar Yamin; Herman .
Jurnal Transportasi Vol. 5 No. 2 (2005)
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Abstrak Kinerja struktur perkerasan jalan yang merupakan suatu struktur yang tidak terlindung sangat dipengaruhi oleh kondisi klimatik lokasi di mana jalan tersebut dibangun. Kondisi klimatik ini memberikan pengaruh jangka panjang tidak saja pada kinerja struktur perkerasan jalan tetapi juga pada respon struktur perkerasan tersebut terhadap beban karena kondisi klimatik sangat menentukan kecepatan penuaan aspal. Penuaan aspal adalah suatu parameter yang baik untuk mengetahui durabilitas campuran beraspal. Penuaan ini menyebabkan terjadinya pengerasan pada aspal dan selanjutnya akan meningkatkan kekakuan campuran beraspal dan akhirnya akan mempengaruhi kinerja campuran tersebut. Studi ini bertujuan untuk mengetahui pengaruh lingkungan terhadap penuaan aspal dan pada modulus kekakuan Cement Treated Asphalt Mixture (CTAM) dan Split Mastic Asphalt (SMA) pada iklim tropis Indonesia. Untuk mencapai tujuan tersebut, kedua campuran ini dikondisikan terhadap pengaruh lingkungan dengan cara mengeksposnya secara langsung di udara terbuka selama 0, 1, 3, 6, 9, 12, 15, 18, dan 21 bulan. Uji laboratorium dilakukan pada campuran yang sudah dikondisikan dan pada aspal hasil ekstraksinya. Selain itu, data penuaan aspal kedua campuran yang didapat dari studi ini dibandingkan dengan data sekunder penuaan aspal yang diperoleh dari campuran Hot Rolled Sheet (HRS) yang ada di lapangan. Kata-kata kunci : Pengaruh klimatik, CTAM, SMA, sifat aspal, modulus kekakuan

PENGGUNAAN FOAM BITUMEN UNTUK DAUR ULANG PERKERASAN JALAN R. Anwar Yamin; Djoko Widayat
Jurnal Jalan-Jembatan Vol 25 No 2 (2008)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Restoration of pavement failure was usually done by repairing the damaged segments, by improving pavement structural capacity, by overlaid or by demolished the existing asphalted layer followed by repairing and adding a base layer and followed by overlaid a new asphaltic layer as its surfacing. All of those activities needs fresh materials and can change pavement elevation. Repairing and improving structural capacity of pavement by reused (recycling) the existing pavement materials may be a solution that could be done. A number of materials type can be used either for repairing or for improving the quality of recycling materials, one of them are foam bitumen. Foam bitumen is a mixture of bitumen, water and air in a certain proportion. Foam bitumen produced by injecting water into hot bitumen in the foaming chamber. Foam bitumen can be used as a stabilizer for all type of materials including recycling pavement materials. The use of foam bitumen should be combined with the active filler (cement or lime) in the recycling pavement materials. There were many factors affect the successful in making the recycling by used of foam bitumen. This paper tried to give a description of foam bitumen characteristics, factors affecting in making foam bitumen, the type of materials that can be recycled by foam bitumen, the laboratory and field performance of recycled pavement materials. Key Words: Foam bitumen, stabilizer recycling laboratory and field performance

THE LABORATORY PERFORMANCE OF HIGH TEMPERATURE FATIGUE OF MODIFIED WASTE PLASTIC-BITUMEN IN ASPHALT CONCRETE Imam Aschuri; R. Anwar Yamin
Jurnal Jalan-Jembatan Vol 25 No 2 (2008)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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It is well known that the fatigue cracking occurs at an intermediate temperature of around 20Â°C and many researchers have carried out the fatigue study to generate fatigue regression at temperatures ranging only from 5Â°C to 30Â°C. The purpose of this study is to investigate the high fatigue characteristics of asphalt concrete utilizing waste plastic milk bottle (HDPE) as polymer additive over arange temperature of 20Â°C to 40Â°C. Waste plastic (HDPE) was used to modify 60/70 penetration grade bitumen and Its effect on basic bitumen properties was tested over a range of test temperatures. The Marshall stability tests were carried out to determine the optimum bitumen content and optimum HDPE content of asphalt concrete. The optimum HDPE content in binder was found to be 1.5% by weight of binder. The laboratory fatigue test on asphalt concrete with and without waste plastic (HDPE) was evaluated using repeated load tests at 20oC,30oC and 40oC under constant stress mode. Temperatures had a significant effect on fatigue performance, which the fatigue performance of asphalt concrete exhibited better at higher temperature. Test results showed that the fatigue performance in term of fatigue life of asphalt concrete using waste plastic-bitumen blend showed higher than conventional mix at a range of temperatures. Key Words: Modified Bitumen, Waste Plastic, Fatigue Cracking, Asphalt Concrete and High Temperatur

PENGARUH CURING TIME DAN PENGARUH AIR PADA LAPISANBER-TACK COAT TERHADAP KINERJA TAHANAN GESER PADA INTERFACE LAPISAN BERASPAL Ida Rumkita; R. Anwar Yamin
Jurnal Jalan-Jembatan Vol 23 No 2 (2006)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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In a multi layers pavement structure, each layer should be integrated. In overlay work tack coat is used to bond between existing and new layers.New asphalt mixture is placed after the application of tack coat in order to allow the oil in tack coat to evaporate.The purpose of the research is to find out the influence of curing time and water in coated layers on the shear strength of asphalt layer in terface. A specimen was made using MC- 250 as tack coat, curing time duration and water influence were variously set up.The shear strength on specimen interface was tested by direct shear using normal loading of 20 kg. Research result indicates that curing time duration of tack coat significantly influences the shear strength. If the application is done in the range of setting time of tack coat, the shear strength generated by tack coat in asphalt layer interface nearly reached the maximum value and the shear occurred among layers is small. For liquid asphalt MC-250,setting time occurred at the range of 45 â€“ 120 minutes.Therefore,to reach optimum result the application should be performed at that range.The research result also shown that water gives negative influence on shear strength generated by tack coat. For 2; 1 and 0,5 hour tack coat cure, they were allowed dump by water for 2; 1,5 and 0,5 hours respectively.

Model Konstitutif Modulus Kekakuan Resilien Cement Treated Asphalt Mixture R. Anwar Yamin
Jurnal Jalan-Jembatan Vol 22 No 2 (2005)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Design thickness of pavement by mechanistic method may allow use of many types of pavement materials. Cement Treated Asphalt Mixture (CTAM) is one type of pavement surfacing layer which is a composite mixture consist of aggregates, asphalt and mortar cement. CTAM made from open graded and mortar cement as air void grouting agent resulted a new type of asphaltic mixture with a unique characteristic. So far, use of CTAM is not too popular since its chart or constitutive model for determination of its stiffness modulus is not available yet. The aim of this study was to formulate the constitutive models of stiffness modulus of CTAM (SCTAM). For meet this purpose, a laboratory experiment using CTAM made by varied types of asphalt; petroleum asphalt Pen 60 (AM), AM plus 3% latex type KKK-60 and AM plus Asbuton type of Retona-60 by ratio 4 : 1 (AA), three different of compressive strength of mortar cement. This test was conducted in elastic range of CTAM on three different temperatures. Constitutive models of SCTAM was formulate as a function of its affecting factor i.e. stiffness modulus of asphalt (Sbit), compressive strength of mortar (K), asphalt content (KA), void in mix of CTAM (VIMCTAM), void filled by mortar (VFMCTAM) and temperature (T). By use of 681 data, a quite feasible constitutive models SCTAM was derived

PENGARUH ARAH GROOVING BETON TERHADAP TAHANAN GESER PERKERASAN KOMPOSIT BETON SEMEN-ASPAL R. Anwar Yamin; Abdul Halim; Eddie Djunaedi
Jurnal Jalan-Jembatan Vol 22 No 3 (2005)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Overlaid asphalt onto concrete pavement is another alternative than regrooving; it creates a composite layer of concrete-asphalt. Monolithic concrete-asphalts depend on bonding at its interface and affected by direction, space and depth of grooving, quantity and may type of tack coat used. This research aimed to know the effect of grooving direction to shear resistance the interface of on concrete-asphalt composite layer. Three types of grooving: transversal, angle of 45o and longitudinal, used. Emulsied asphalt of CRS-1 and cut back asphalt of RC-70 by quantity of 0, 2 l/m2 and 0, 6 l/m2 applied as a tack coat. As the results, it is known that shear resistance the interface of on concrete-asphalt composite layer affected not only on grooving direction but also quantity of tack coat and normal force applied. For concrete-asphalt composite layer, the highest shear resistance given by transversal grooving direction and 45o angle of grooving direction is better than longitudinal grooving. For all grooving direction, CRS-1 emulsified asphalt has a higher shear resistance than RC-70 cut back asphalt and changing of adhesiveness of RC-70 caused of normal force is more susceptible than CRS-1.

PERHITUNGAN NILAI IRI MENGGUNAKAN MODEL IRRE DENGAN SIMULASI BERBAGAI VARIANSI KONDISI PERMUKAAN Effendi Radia; R. Anwar Yamin; Kurniadji Kurniadji
Jurnal Jalan-Jembatan Vol 26 No 1 (2009)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Surface roughness is one of important parameters in road maintenance management, thus characterictics of that roughness is important to be understood. During the past time, the affect of road surface form and it's dimention againts road surface roughness so far is unknown well. This paper tries to know the affect of variation of road surface form and it's dimention toward road surface roughness expressed in term of IRI, by use of IRRE calculation model of IR.

PERHITUNGAN NILAI IRI MENGGUNAKAN MODEL IRRE DENGAN SIMULASI BERBAGAI VARIANSI KONDISI PERMUKAAN Effendi Radia; R. Anwar Yamin
Jurnal Jalan-Jembatan Vol 22 No 4 (2005)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Surface roughness is one of important parameters in road maintenance management, thus characterictics of that roughness is important to be understood. During the past time, the affect of road surface form and it's dimention againts road surface roughness so far is unknown well. This paper tries to know the affect of variation of road surface form and it's dimention toward road surface roughness expressed in term of IRI, by use of IRRE calculation model of IRI.

MODIFIKASI MARSHALL DALAM PERENCANAAN CAMPURAN ASPAL PORUS UNTUK CEMENT TREATED ASPHALT MIXTURE (CTAM) R. Anwar Yamin; Bambang Ismanto Siswosubrotho
Jurnal Jalan-Jembatan Vol 19 No 3 (2002)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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In the line with increment of crude oil price and demand impovement of oil cause id a raisting the asphalt price. In this time, the unit price of asphalt mixtrure is not more relevant and higher than concrete's unit price. Cement Treated Asphalt Mixtures (CTAM) is one of solutions for reducing the use of asphalt. Basically, CTAM is a porous asphalt mix which it voids filled cement mortar. For those, voids in mix of porous asphalt and characteristics of cement mortar are two parameters which should be considered in making CTAM. This paper just concerned to design procedure in porus asphalt for CTAM's purpose. The result of this study shown that Marshall procedure which had modified could be used for this purpose. The modification done in this study only on the sample's preconditoning procedure prior testing i.e. by conductingn oven heating on temperature 50oC for 110 minutes.

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