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MEKTEK
Published by Universitas Tadulako
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Core Subject : Education,
Education
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Articles 5 Documents
 1 
Search results for , issue "Vol 15, No 2 (2013)" : 5 Documents clear
PENGARUH PENGGUNAAN KAPUR PADAM SEBAGAI BAHAN PENGISI (FILLER) PADA KETAHANAN PENGELUPASAN BETON ASPAL LAPIS AUS (AC-WC) Mashuri, Mashuri; Batti, Joy Fredi; Listiana, Listiana
MEKTEK Vol 15, No 2 (2013)
Publisher : MEKTEK

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Abstract

Asphalt Concrete Wearing Course (AC-WC) Pavement is located at the upper layer indirect contact with the vehicle wheel, rain and sunshine. This condition causes the pavement layer AC-WC susceptible to damagecaused by traffic loads, the influence of water and the hot sun as stripping. Currently, much effort has beendone such as the use of hydrates lime as an additive to improve the durability of the AC-WC pavement from damage. However, this study tries to use hydrates lime as a filler material in view of its influence onstripping resistance of AC-WC pavement. The purpose of this study was to determine the effect of the use of hydrates lime as a filler material to stripping resistance of AC-WC pavement. The test have been done on each percentage of hydrat lime: 0%, 25%, and 50%. Testing of AC-WC pavementto stripping  resistance using Immersion Compression Test to obtain the Index of Residual Strength (IRS)AC-WC pavement. Value of the residual strength index is an indicator of stripping resistanceof asphalt pavement. Testing of Immersion Compression Test using a Universal Testing Machine (UTM) atthe test temperature is 250C. Testing of Immersion Compression Test conducted for each percentage ofhydrate lime on the condition of Optimum Asphalt Content. The results of the study found that the use ofhydrat lime as a filler material can affect the stripping resistance of AC-WC pavement. This is indicated bythe increased value of the IRS pavement using hydrates lime as a filler material than without the use ofhydrate lime. The study also found that the IRS maximum value is 96.03% in the hydrat lime content of 25% and aminimum value of 94.48% IRS on the hydrate lime content of 50%.Keywords: Stripping resistance, hydrate lime, IRS
SIMULASI TINGKAT KEBISINGAN DAN KADAR POLUTAN SEBAGAI AKIBAT AKTIVITAS TRANSPORTASI PADA KAWASAN PERDAGANGAN DI KOTA KENDARI (Studi kasus: Kawasan Perdagangan Jalan MT. Haryono Kec. Wua-wua Kota Kendari) Djalante, Susanti; Nurrakhmad, Laode Muh; Sugiyarto, Try
MEKTEK Vol 15, No 2 (2013)
Publisher : MEKTEK

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Abstract

The rapid economic activity in Kendari  is indicated by  development of  central business  Lippo Plaza in MT.Haryono Roads Kendari. However, the consequences of the development of the central business  LippoPlaza  have affected on the environment in the form of increased noise and air pollution. The aim  of thisstudy was to determine the level of noise and air pollution in the existing conditions, and to determine thelevel of noise simulation.  The method  used in this study for the noise calculations  was based on " The Bookof Calculation of Road Traffic Noise " published by the Department of Transport , Welsh Office , HMSO(1988), and the method of calculation of pollutant concentration  used  an equation developed by SitiMalkamah. The results of this study showed that the highest noise levels occur on Holidays / Saturday in Segment 2 (front Jl.MT.Haryono Lippo Plaza ) of 70.11 dB ( A ), this value is above the noise quality standardssuggested by No. KepMenLH . 48 in 1996 , which is 70 dB ( A ). In addition, the value also has  exceeded ofthe maximum allowed for trade in the region ( Zone C ) Regulation of the Minister of HealthNo.718/Men/Kes/XI/1987. Variables such as traffic volume is high and a large reflection angle, couldincrease noise, while low-speed, high barrier width and spacing can reduce the noise level.  For pollutantlevels, the value of 4065.33 μg/nm3 content of CO, NOx at 200-300 μg/nm3 , μg/nm3 PM at 0.0097 , stillbelow the National Ambient Air Quality Standards ( PP RI 41, 1999 ) , namely 30000 μg/nm3 , 400 and 150μg/nm3 μg/nm3. While the HC 400 and 700 μg/nm3 μg/nm3 has exceeded the standard of 160 μg/nm3 .Recommendation suggested to address the noise problem at Jl.MT . Haryono is the adoption of the CoreStrategy, which is the application of one direction on one arm of the intersection at peak hours , thusresulting intersection service level increases from E to C.Keywords: Noise Simulation, Pollutant Consentration Simulation
KUALITAS PELAYANAN DAN LOYALITAS PENGGUNAAN OJEK SEPEDAMOTOR SEBAGAI ANGKUTAN UMUM PENUMPANG PERKOTAAN Bahar, Taslim
MEKTEK Vol 15, No 2 (2013)
Publisher : MEKTEK

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Abstract

Limited access to Public Transport (PT) to serve the needs of PT urban population will lead to the emergence of alternative PT. Limited access PT is partly due to the limited size of the geometric road and thelimited range of PT services. This generally occurs in the cities of Indonesia and one of its effects is theemergence of alternative public transport passengers is ojek motorcycles. Ojek Motorcycle(MC) appears dueto user response to the needs of PT and tends to consumer increases in Indonesian cities. How the user'sperception of the ojek MC service and whether the ojek MC still needed as part of the urban public transportpassenger? This study aims to investigate the factors that affect the quality of service and loyalty to the ofMC ojek transport as  urban passenger public transport. Survey has been done in Bandung city and datacollection by questionnaires and interviews directly to the user. The analysis was done with the approach ofthe causal relationship between the factors that influence with method of structural equation modeling(SEM).The study shows that the convenience factor/flexibility, time, Accessibility, safety and driver attitudes providea strong reflection to service quality of ojek MC. Factors pollution caused by the operation of ojek MC doesnot reflect the quality of service. While the indicators: it would continue the use of modes and wouldrecommend the use of other modes to give a good reflection of the loyalty. Quality of service has a stronginfluence on satisfaction, furthermore, satisfaction strong influence on the use of ojek MC loyalty.Keywords: Ojek Motorcycle, SEM, loyalty, service, quality
OPTIMASI AKTIVATOR DALAM PEMBUATAN KOMPOS ORGANIK DARI LIMBAH KAKAO Yanqoritha, Nyimas
MEKTEK Vol 15, No 2 (2013)
Publisher : MEKTEK

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Abstract

The purpose of the study is to determine the ability of the composting process composting time to examine the relationship to temperature, pH and levels of C, N, Ratio C / N, P using EM4 activator, MOD 71, sheep dungon cocoa waste biomass. The working principle of the study is to observe and analyze the decomposition ofbiomass wastes cocoa to different activators and observe the process of composting process variables for 7,14, 21, 28, 35, 42, 49, and 56 days with the analysis of temperature, pH and analyze levels of nitrogen (N),Carbon (C), Ratio C / N, and phosphorus (P). Results were obtained in accordance with the optimizationpoint of the graph N, C, Ratio C / N, and P. Then connected to the SNI table, suitable compost is compostactivator biomass using EM4, at 28 days with temperatures 54.88 0C and compost maturation is the 56dayof temperature 28 ° C with a pH of 7.46.Keywords: Biomass, activator, EM4, MOD 71
KARAKTERITIK BETON ASPAL LAPIS PENGIKAT (AC-BC) YANG MENGGUNAKAN BAHAN PENGISI PENGISI (FILLER) ABU SEKAM PADI Ismadarni, Ismadarni; Risman, Risman; Kasan, Muhammad
MEKTEK Vol 15, No 2 (2013)
Publisher : MEKTEK

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Abstract

Asphalt Concrete Binder Course (AC-BC) Pavement is a type of asphalt pavement located between base layer and wearing course.  The study was conducted describing the the effect of the use of rice husk ash onthe characteristics of asphalt concrete AC-BC mixtures. The purpose of this study was to determine thecharacteristics of the asphalt concrete binder course mixtures (AC-BC) which uses rice husk ash as filler,determine the optimum percentage of rice husk filler in AC-BC pavement mixtures. Research materials include coarse aggregate, fine aggregate and rice husk ash. Coarse and fine aggregateobtained from Stone Cruiser of Taipa and Palu River, while rice husk ash obtained fromBiromaru area in Sigi Regency. Asphalt used in this study is Asphalt pen. 60/70 produced by Pertamina.Investigation and testing of these materials has been carried out in the Laboratory of Transportation andHighways, Department of Civil Tadulako University of Palu.Research has been carried out by using rice husk ash filler variation of 0%, 25% and 50%. The datacollected includes characteristics of volumetric and Marshall test characteristics of AC-BC pavementmixture on each rice husk ash content. The data include density, VIM, VMA, VFB, Stability, flow, MarshallQuotient value and residual stability of the mixture. The data is processed and displayed in graphical form,  then do a comparative analysis between the characteristics of the AC-BC mixture that uses rice husk ash andwithout rice husk ash.The results of the study found that increasing the percentage of rice husk ash content in the mix AC-BC tendsto increase the use of bitumen content. It can be seen from the increasing value of Optimum Bitumen Content(OBC) on rice husk ash variation of 0% - 50%. The results also gain an increase in the durability of the ACBCmixtureofricehuskashonthevariationof0%- 5%asindicatedbytheincreasedtheresidualstabilityvalueofthe AC-BC pavementmixtures.Maximum stabilityoccursinrice huskashcontentof25%.Keywords: Asphalt Concrete Binder Course (AC-BC), rice husk ash

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