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Hadi Ali
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Kepadatan Campuran dengan Variasi Tumbukkan Terhadap AC-WC Gradasi Halus Yuliansyah Yuliansyah; Hadi Ali; Priyo Pratomo
Jurnal Rekayasa Sipil dan Desain Vol 3, No 2 (2015): Edisi Juni 2015
Publisher : Jurnal Rekayasa Sipil dan Desain

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This study was conducted to determine the effect of variations in the compaction of thecharacteristics of the asphalt layer using the Marshall method which refers to the buildingspecifications of bina marga 2010. In the Marshall plan establishes parameters for the number ofcompaction of heavy traffic conditions compaction test specimen as 2x75 compaction with thecavity boundary mixture of 3,5- 5.5%. While on the asphalt concrete layer is studied AsphaltConcrete Wearing Coarse (AC-WC) subtle gradations lower limit.After the results of the testing materials testing both asphalt and aggregate meets the standardsand then do the manufacture asphalt mixture specimen. From the analysis of the value obtainedafter calculating the optimum asphalt content lower limit of 6,8%. Then used in mixing asphaltcontent for the variation of the collision is 2x50, 2x55, 2x60, 2x65, 2x70, 2x75, 2x80, and 2x85.After it was examined Marshall.From the test results on compaction Marshall 2x50, 2x55, 2x60, 2x65, and 2x70. Does not meetthe Marshall parameter value because Marshall Quotient (MQ) does not enter the specifications.While the value of voids In The Mix (VIM) in the collision 2x50, 2x55, 2x60, 2x65, and 2x70 arealso not included in the specification. Only on compaction of 2x75, 2x80 and 2x85 that meet theparameters of Marshall.Keywords : Compaction, Asphalt Concrete - Wearing Course (AC-WC) Subtle Gradation,Marshall Parameters, Bina Marga Specifications 2010.
Analisis Perencanaan Tebal Lapis Tambah (overlay) Cara Lenduntan Balik Dengan Metode Pd T-05-2005-B dan Pedoman Interim No.002/P/BM/2011 Danu Wahyudi; Priyo Pratomo; Hadi Ali
Jurnal Rekayasa Sipil dan Desain Vol 4, No 1 (2016): Edisi Maret 2016
Publisher : Jurnal Rekayasa Sipil dan Desain

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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
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
Co-Authors Abdurrohmansyah Abdurrohmansyah Andriansyah Andriansyah Budi Raharjo Danu Wahyudi I Wayan Diana Idharmahadi Adha Ketut Swandana Priyo Pratomo Suhardi Suhardi Tarkono Tarkono Teguh Dwi Istanto Wahyudi Wahyudi Yuliansyah Yuliansyah