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Hadi Ali
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PENGARUH PENAMBAHAN SERAT TANDAN KOSONG KELAPA SAWIT (TKKS) TERHADAP SIFAT MEKANIK ETERNIT YANG RAMAH LINGKUNGAN Tarkono, Tarkono; Ali, Hadi
Jurnal Teknologi Vol 8 No 1 (2015): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Abstract

Eternit merupakan salah satu produk yang terbuat dari asbes. Asbes merupakan bentuk serat yang mempunyai keunggulan yaitu tidak menghantarkan listrik, tetapi penggunaan asbes pada eternity ini memiliki efek samping bagi kesehatan penghuninya. Oleh sebab itu diperlukan bahan alternative sebagai pengganti asbes untuk memenuhi kebutuhan eternit. Salah satu serat yang aman digunakan adalah serat alam dari perkebunan kelapa sawit. Jumlah produksi kelapa sawit di Indonesia dari tahun ke tahun mengalami peningkatan. Pembuatan eternit berbasis serat tandan kosong kelapa sawit merupakan usaha untuk mengeliminir bahaya dari serat asbes yang persediaanya terbatas. Selain itu tujuan dari penelitian ini adalah untuk mendapatkan produk eternit dengan teknologi produksi yang ramah lingkungan. Dalam penelitian ini digunakan campuran serat tandan kosong kelapa sawit, semen, powder marmer dan batu kapur. Hasil penelitian ini didapatkan bahwa eternity berbasis serat tandan kosong kelapa sawit (TKSS) memiliki kekerasan yang lebih tinggi dibandingkan gipsum. Kekerasan eternity disebabkan oleh penambahan semen yang memiliki kekerasan tinggi. Berdasarkan uji impak, eternit berbasis serat TKSS 10% merupakan komposisi optimum. Selanjutnya, tegangan tarik pada komposisi seratTKSS 10% juga menghasilkan angka kekuatan tarik optimum yaitu 0,177 kg/mm2. Penggunaan serat TKSS pada produksi eternit memiliki potensi aplikasi untuk diproduksi secara masal.
Kajian Terhadap Review Desain Jembatan Way Panas, Desa Margomulyo – Lematang, Kecamatan Jati Agug, Lampung I Wayan Diana; Hadi Ali; Ketut Swandana
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 20, No 1 (2016): Edisi April 2016
Publisher : UNIVERSITAS LAMPUNG

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This design is done to determine the level of efficiency the most economical to aligment and geom- etry of bridge have been built. As long as gain alternative type of structure on bridge which should used in way panas. Calculations in this design cover the building upon and under constuction the bridge. With calculations result of dead load and live load, followed bye look for to moment force and normal force. Until found of dimension and reinforcement needed for each building. And next calculations of estimated engineering use RAB. Based on the result of design it is concluded geometry changes of bridge from the span 12 to 16 meter provide curve geometry is better then position the existing. Bridge reinforcement analysis with ultimate analysis give efficiency reinforcement to 806,69 kg be compared with standard BM- 100 with flexible analysis. On implementation with BM-100 result the reinforcement of 3876,3 kg. The cost implementation with unit price of material (RAB) is IDR 975.000.000,- under own estimate.
TINJAUAN PENGGUNAAN ABU BATU DAN ABU VULKANIK SEBAGAI FILLER TERHADAP DURABILITAS ASPHALT CONCRETE-WEARING COURSE (AC – WC) Hadi Ali
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 17, No 1 (2013): Edisi April 2013
Publisher : UNIVERSITAS LAMPUNG

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Abstract

Filler is component of pavement construction. The little prosentase of filler in the mixture has bigeffect in characters marshall also be mixture performance towards traffic load. The pavementconstruction in this research is asphalt concrete - wearing course (ac-wc), by using vulcanic ashand stone ash as filler in refusal density. In asphalt optimum content that is 6,00 % to filler ofstone ash and 5,9 % to filler of vulcanic ash, in refusal density test 2x400 collision, fulfil spesifica-tion and both types of collision be correlate of marshall parameter with longly soaking 0, 1, 2,and 3 days. The result that got after soaking, pavement structural with filler of vulcanic ash hasstability 1084,307 kg and flow 3,55 mm, while a with filler of stone ash has stability 1077,842 kgand flow 3,6 mm. Test of durability that mixture with filler of vulcanic ash has value better from instone ash, the Retained stability index of mixture with filler of vulcanic ash has prosentase99,08262 %, while in filler of stone ash 98,84916 %.
KARAKTERISTIK CAMPURAN ASPHALT CONCRETE–WEARING COURSE (AC-WC) DENGAN PENGGUNAAN ABU VULKANIK DAN ABU BATU SEBAGAI FILLER Hadi Ali
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 15, No 1 (2011): Edisi April Tahun 2011
Publisher : UNIVERSITAS LAMPUNG

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Abstract

KARAKTERISTIK CAMPURAN ASPHALT CONCRETE–WEARING COURSE (AC-WC) DENGAN PENGGUNAAN ABU VULKANIK DAN ABU BATU SEBAGAI FILLERHadi AliAbstractAsphalt concrete layer construction casing layer perkerasan road that has structural value. one of the asphalt concrete layer kind asphalt concrete - wearing course (ac-wc) as top-ranking layer in perkerasan bent. composers principal materials aggregate and asphalt, belong kind filler in its use. in this watchfulness is kind filler that is used vulcanic ash and stone ash as the standard. Before done testing marshall in mixture, done testing towards materials that used it. specific gravity testing result in filler vulcanic ash 2,819 gr/cm3 and 2,351 gr/cm3 for stone ash, while materials escapes 75 microns in filler vulcanic ash and stone ash is taken 100%. plan asphalt degree that used good in mixture with filler vulcanic ash also stone ash pb = 5,5% with plan asphalt degree distance 4,5%; 5%; 5,5%; 6% and 6,5%. After done test marshall with plan asphalt degree, entire characters marshall in standard test 2x75 collision has fulfilled spesification menyyaratkan. result that got density and stability marshall with vulcanic ash has higher value from in mixture with stone ash. in entire asphalt degree distances, value flow mixture with filler higher stone ash from in mixture with filler vulcanic ash. highest value in stone ash asbig as 4,667 mm, while vulcanic ash as big as 4,2667 mm. marshall quottient for both types of filler, bottommost value happens in highest asphalt degree (6,5 %) that is as big as 217,19407 kg/mm to filler stone ash and 239,5274 kg/mm to filler vulcanic ash. filler vulcanic ash has value vfa higher from in stone ash, but value vma lower. while air hole value in mixture (vim), filler higher stone ash from in vulcanic ashKeyword : stone ash, vulcanic ash.
PEMANFAATAN LIMBAH PABRIK KELAPA SAWIT SEBAGAI MATERIAL TEKNIK Tarkono Tarkono; Hadi Ali
ROTOR Vol 9 No 2 (2016)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Palm oil mill issuesbyproducts in the form of 0.70 tons of cubic meters of fiber, 0.35 tons of cubic meters of shell,and 1.1 tons of cubic meters of oil palm empty fruit bunches palm (EFBP) to yield 1 ton cubic meters of crude palm oil.The fiber content consisted in the EFB is a source of fiber for a variety of industries such as manufacturing of composites, fillers for thermo-plastic, paper-making and sound insulation as well as soil erosion control.Manufacturing of a natural fiber reinforced cement board is an effort to reduce the use of synthetic fibers and asbestos fibers which cause side effects for its users.So this research is one of the breakthroughs to obtain new materials as substituteto asbestos fibers. This research used portland cement, marble powder, CaCO3 and EFBP fiber as reinforcement.EFBP fibers were arranged randomly in the form of short fibers. Percentage of the mixture of 16%, 12% marble powder, and portland cement was varied with a percentage of 50%, 45%, 40%, 35%, 30%, 25%, 20%, 15% and the volume percentage of CaCO3 inverse of the percentage of portland cement. The results showed that the characteristics of fibrous EFBP cementboard in the optimum condition to produce value of tensile strength of 1.96 MPa, flexural strength of 2.61 MPa, compressive strength of 14.35 MPa, density (ρ) of 1519 kg/cm3, water absorption of 24.28 and flame propagation velocity between 54.4 to 61.5 FS.By the standard of JIS A 5417-1992 that the requirements of density in the construction of cement board is of 0.8 g/ cm3, so that the material is appropriate to be applied.Its thermal conductivity lower than fibrous congseted asbestos cement board λ = 0.576 kcal/mhoC, meaning that the cement board is worthy applied as a ceiling of the house. Keywords:EFPB, fiber, cement board, engineering material
Pengaruh Suhu Pemadatan Campuran Untuk Perkerasan Lapis Antara (AC-BC) Raharjo, Budi; Pratomo, Priyo; Ali, Hadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 1 (2016): Edisi Maret 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i1.345

Abstract

The main objective of this study was to determine the influence of variations of temperaturechanges on the asphalt compaction process heat (hot mix asphalt) layer between (AC - BC)against Marshall parameter with reference to the specifications of Highways in 2010.Based on the analysis of data processing obtained that the value content of asphalt used formiddle limit is 6.1 % and the lower limit of 6.85 %.Based on the analysis of data processing obtained that the value content of asphalt used formiddle limit is 6.1 % and the lower limit of 6.85 %. From the test results Marshall at atemperature of 135oC, 145oC and 155oC in the middle limit has met all the parameters Marshall.Only at a temperature of 125oC and 115oC that do not meet the parameters Marshall Void in valuedue Mix (VIM) and the Marshall Quotient (MQ) do not enter Specifications Highways Marshall2010. While testing the lower limit on the temperature 115oC, 125oC and 135oC does not meet allthe parameters Marshall, because the value of Marshall Quotient (MQ) did not enter thespecifications of Highways in 2010 .Keywords : Solidification temperature , Specification for Highways 2010, Marshall , AsphaltConcrete - Binder Course (AC - BC)
Optimalisasi Tebal Perkerasan Pada Pekerjaan Pelebaran Jalan dengan Metode MDPJ 02/M/BM/2013 dan Pt T-01-2002-B Andriansyah, Andriansyah; Pratomo, Priyo; Ali, Hadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 1 (2016): Edisi Maret 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i1.359

Abstract

Every year, goverment incur huge cost for development of facilities and infrastructures oftransportation, especially land transportation development by increasing the road capacity. Thiscapacity expansion is done by widening the road, especially on roads that can no longeraccommodate the volume of vehicles or roads that predicted will be passed by the high volume ofvehicles. Therefore, it is required pavement thickness design solutions that based on a life cyclecost analysis and the lowest consideration of construction resources to the minimum life cycle costdesign.This research was conducted in A. H. Nasution Street, on Metro - Gedung Dalam segment. Todetermine the flexible pavement thickness, this research uses “Manual Desain Perkerasan Jalan02/M/BM/2013”, “Pedoman Perencanaan Tebal Perkerasan Lentur Pt T-01-2002-B” and“Perencanaan Tebal Perkerasan Lentur Jalan Raya dengan Metode Analisa Komponen 387-KPTS-1987 methods”. After that, analyze the road deterioration that will happen during the lifedesign or life cycle design that based on the value of IRI. The results of life cycle design wasdeveloped to get the best pavement type that based on the life cycle cost analysis.From the analysis that has been done, the design with the lowest initial cost is a pavement designby using Bina Marga Pt-T-01-2002-B method, whereas the design with the lowest life cycle cost isa pavement design by using MDPJ 02/M/BM/2013 method and the most optimal pavementthickness.Keywords : flexible pavement, life cycle cost, life cycle design, IRI
Analisis Perencanaan Tebal Lapis Tambah (overlay) Cara Lenduntan Balik Dengan Metode Pd T-05-2005-B dan Pedoman Interim No.002/P/BM/2011 Wahyudi, Danu; Pratomo, Priyo; Ali, Hadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 1 (2016): Edisi Maret 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i1.361

Abstract

Roads are the transport infrastructures which play an important role in supporting the economicgrowth of a region. Therefore it is necessary to do maintenance efforts so that the roads canfunction optimally.One of them is by adding overlay. The selection of methods become a factorthat must be considered before doing flexible pavement overlay design. It is because of improperplanning can cause damaged or uneconomical construction of roads. Along with the technologicaladvances, methods of overlay flexible pavement design based on deflection also undergone manymodifications such as“Pedoman Perencanaan Tebal Lapis Tambah Perkerasan Lentur Pd T-05-2005-B”and “Pedoman Interim Perkerasan Jalan Lentur No.002/P/BM/201”. The purpose of thisresearch was to determine the most optimal and most efficient life cyclecost of overlay design inthe roads performance improvement project of Batas Kota Metro-Gedung Dalam. From theanalysis results show that the design results by using Pd T 05-2005-B were thinner than PedomanInterim No.002/P/BM/2011. It was caused by several factors such as the analysis of traffic,temperature correction factor, and the types of materials used. The indicator value of theinternational roughness index (IRI) is predicated by emperical equations and the design life of 20years, obtained the lowest lifecycle costs are the result of design methods Pd T-05-2005-B. Theresults of the analysis also showed that the cost at the end of the design life methods Pd T-05-2005-B less than Pedoman Interim No.002 /P/BM / 2011.Keywords :Road, Overlay, Life Cycle Cost
Studi Karakteristik Marshall Pada Campuran Aspal Dengan Penambahan Limbah Botol Plastik Suhardi, Suhardi; Pratomo, Priyo; Ali, Hadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 2 (2016): Edisi Juni 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i2.381

Abstract

This experiment aims to investigate the Marshall characteristics due to the variation addition ofPET (Polyethylene Terephthalate) at mixtures AC-BC (Asphalt Concrete-Binder Course) finelygraded with reference to the specification of Bina Marga 2010.From the result of aalysis has obtained the values of Marshall parameters, the value of the 1 stobject groups test and 2nd object groups test, for the parameters marshall meets the specificationsalready determined by the Bina Marga 2010 on the asphalt level range 6.38% up 6.5%, and theoptimum bitumen content value has been obtained is 6.44%.This research proves that with the addition of variations of PET (Polyethylene Terephthalate) in amixture of AC-BC (Asphalt Concrete-Binder Course) was affected to the Marshall characteristics,as high as the levels of addition PET (Polyethylene Terephthalate) so the value of stability willincrease but the percentage of the value of void content in the mix will be higher.Keywords: AC-BC(Asphalt Concrete-Binder Course), Marshall, PET(Polyethylene Terephthalate)
Perubahan Parameter Parameter Marshal Akibat Perbedaan Jumlah Tumbukan pada Aspal Concrete – Wearing Course (ACWC) Gradasi Halus Istanto, Teguh Dwi; Pratomo, Priyo; Ali, Hadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.447

Abstract

This study was conducted to see the changes in the value of the parameter values marshall afterthe number of collisions in the standards vary the amount of the collision then analyzed thenumber of collision and then analyzed the number of collisions are most effective assessed on thevalue of the characteristic marshall. In the Marshall planning standard for the number ofcollisions of heavy traffic conditions compaction test specimen as 2x75 collision with a mixturecavity boundary between 3.5-5%.This study uses gradation Asphalt Concrete - Wearing Course (AC-WC) smooth gradations formiddle and upper limits. From the data obtained aggregate gradation and asphalt aggregatedemand needs are used to find the optimum bitumen content that is used in the manufacture of testspecimens for variations in the number of collisions is 2x55, 2x65, 2x75, 2x85, and 2x95. Marshallthen test to see the number of collisions are most effective against the characteristics of asphaltmixture.Based on the analysis of the data processing is obtained that the value content of asphalt is used tolimit the middle that is 5.7% and the upper limit of 6.5%. Total Collision 2x75 and 2x85 that meetsall the parameters marshall. For the number of collisions 2x55 and 2x65 obtained small stability,voids In The Mix (VIM) is great and does not make the specification, to the number of collisions2x95, obtained great stability and voids In The Mix (VIM) is small and does not get in thespecification.Keywords: Collision, Marshall, Asphalt Concrete - Wearing Course (AC-WC), Smooth Gradation
Co-Authors Abdurrohmansyah Abdurrohmansyah Abdurrohmansyah, Abdurrohmansyah Andriansyah Andriansyah Andriansyah Andriansyah Budi Raharjo Budi Raharjo Danu Wahyudi I Wayan Diana Idharmahadi Adha Idharmahadi Adha Istanto, Teguh Dwi Ketut Swandana Priyo Pratomo Priyo Pratomo, Priyo Suhardi Suhardi Suhardi Suhardi Tarkono Tarkono Teguh Dwi Istanto Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi, Danu Yuliansyah Yuliansyah