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KARAKTERISTIK CAMPURAN HANGAT ASBUTON DENGAN BAHAN TAMBAH BERBASIS PARAFIN (CHARACTERISTICS OF WARM MIX ASBUTON WITH WAX BASED ADDITIVE) Nyoman Suaryana; Neni Kusnianti
Jurnal Jalan-Jembatan Vol 33 No 2 (2016)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

ABSTRAKPembangunan yang berwawasan lingkungan sudah menjadi tuntutan di seluruh dunia, sehingga isu lingkungan dan penghematan penggunaan bahan bakar menjadi perhatian dunia.  Salah satu metode konstruksi perkerasan jalan yang berwawasan lingkungan adalah campuran beraspal hangat. Tujuan dari studi ini adalah untuk mengevaluasi karakteristik campuran hangat Asbuton (aspal batu Buton dari Indonesia) dengan bahan tambah berbasis parafin yang dibandingkan dengan karakteristik campuran panas Asbuton.  Metodologi penelitian berupa metode experimental, melalui percobaan di laboratorium.  Studi dimulai dengan pengujian bahan, pembuatan rancangan campuran beraspal dengan metode Marshal, serta pengujian karakteristik campuran beraspal panas dan hangat. Hasil studi menunjukkan campuran hangat menggunakan Asbuton pracampur dan bahan tambah berbasis parafin mempunyai karakteristik campuran yang baik dan memenuhi ketentuan spesifikasi campuran beraspal untuk lapisan aus. Temperatur pencampuran dan pemadatan campuran hangat Asbuton dapat dilaksanakan sekitar 15 ºC lebih rendah dari campuran panas Asbuton, tanpa mengurangi kualitas campuran beraspalnya.  Campuran hangat Asbuton dengan bahan tambah berbasis parafin (dengan nama Leadcap) sebanyak 1 %, mempunyai nilai modulus resilien pada temperatur 25 oC sebesar 2267 MPa, mempunyai ketahanan terhadap alur dengan nilai stabilitas dinamis sebesar 7000 lint/mm, ketahanan terhadap pengaruh air dengan nilai rasio kuat tarik tidak langsung sebesar 94,5 %, ketahanan terhadap kehilangan berat akibat pelepasan butir dengan nilai pelepasan butir sebesar 3,6 %.  Nilai modulus dan ketahanan tersebut lebih baik dibandingkan dengan campuran panas Asbuton.   Sementara ketahanan terhadap retak lelah lebih rendah yang ditunjukkan dengan kemiringan kurva fatigue yang lebih besar.  Kata kunci: campuran hangat, Asbuton, parafin, alur, retak lelah, kehilangan berat akibat pelepasan butir, ketahanan terhadap air ABSTRACTGreen construction technology becomes a necessary in the entire world, so that environmental issues and saving on fuel use have become the world's attention.   One of the green construction technology is warm mix asphalt.  The purpose of this study is to evaluate the characteristics of warm mix Asbuton (Indonesian natural rock asphalt) with wax based additive, compared with the characteristics of hot mix Asbuton. Research methodology is in the form of experimental methods, through experiments and observations in the laboratory.  The study started with testing materials, mix designing with the Marshall method, as well as testing the characteristics of hot and warm mix Asbuton.The results of the study showed that warm mix Asbuton has good characteristics and comply with the specifications for asphalt concrete wearing course.  The mixing and compation temperature of  warm mix Asbuton is  around 15 ºC lower than hot mix Asbuton without decreasing the quality of asphalt mix.  Warm mix Asbuton with 1 % of wax-based additive (known as Leadcap)  has a value of resilient modulus at temperature of 25 oC of  2267 MPa, has rutting resistance by  dynamic stability value of  7000 passing/mm, water  resistance by  indirect tensile strength ratio value of  94.5%, resistance to mass losse raveling with the  value of 3.6 %. The values of modulus and the resistance mentioned are better than hot mix Asbuton.  While fatigue resistance is lower, indicated by the greater slope of the fatigue curve. Keywords: warm mix, Asbuton, wax, rutting, fatigue, mass losse raveling, water resistance
PEMANFAATAN MINERAL ASBUTON SEBAGAI BAHAN STABILISASI TANAH Neni Kusnianti
Jurnal Jalan-Jembatan Vol 25 No 3 (2008)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

Asbuton is natural asphalt from Buton Island with great deposits and can beutilized, as a road material because it contains not only bitumen but also mineral with high lime content (CaCO3). The development of pure asbuton product, as a result of separation between bitumen and its mineral, so that mineral asbuton will be an environmental problem, if it is not utilized properly. Therefore, research is required to utilized the asbuton mineral as an alternative material for soil stabilization. The purpose of this research is to evaluate soil characteristics by laboratory test after stabilized with mineral asbuton and to find out the right proportion of mineral asbuton to improve soil support. In this research,soil characteristics stabilized mineral asbuton is compare with unstabilized soil to find out soil characteristics changes. The characteristics tested are Atterberg limit, gradation, density based on standard proctor density, CBR and unconfined compressive strength (UCS). Key words : asbuton mineral, soil stabilisati on, soil characteristics, CBR, UCS
PENGKAJIAN METODA PELAPISAN ULANG CAMPURAN BERASPAL DIATAS PERKERASAN BETON Neni Kusnianti; Y. Ronny P.A
Jurnal Jalan-Jembatan Vol 23 No 2 (2006)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

As a normal condition of pavement, rigid pavement performance will decrease as a result of traffic load and environment factors. Generally, the decrease of performance may in term of structural or functionality of pavement to support traffic. To improve pavement performance and make the most of existing pavement effectively some efforts are needed to reinforce the existing pavement. Service life of rigid pavement can be extended by overlaying new asphalt layer above the existing rigid pavement. Overlay flexible pavement above rigid pavement need a guidance, so that the expected service life can meet the design and also the existing rigid pavement strength can be used effectively and efficiently. In this paper some method of AC overlay over rigid pavement are presented such as Austroad and AASHTO method.
Pemanfaatan Tailing Untuk Campuran Lapis Tipis Aspal Pasir (Latasir) pada Perkerasan Jalan Neni Kusnianti
Jurnal Jalan-Jembatan Vol 22 No 1 (2005)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

There are many types of Hot Mix Asphalt mixture for wearing course, one of them is sand sheet. Sand is one of natural aggregate which is needed for sand sheet mixture, nevertheless the use of natural sand will affected environment, and also in some places this kind of material is difficult to find or its quality is not conform with the defined specification. In some places such as Timika (Papua), a sand sized material, which is a waste product of gold and copper mining process from PT Freeport, namely Tailing is abundant. Until recently, Tailing never been used in road construction. This paper will explain the effect of variation of tailing addition in sand sheet mixture. The use of Tailing as road material will reduce the effect of this waste to environment.