MEDIA KOMUNIKASI TEKNIK SIPIL
Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isn’t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.
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<![CDATA[Analisis Ketahanan Gempa Rumah Tembokan Beton Bertulang di Perumahan Graha Arradea ]]>
<![CDATA[Yoresta, Fengky Satria]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.18097
<![CDATA[The concept of earthquake resistant houses is basically that all building components must be well tied each other. In addition, quality of materials and workmanship must also be good so as to produce a strong building when receiving shocks. This study aims to determine whether houses in Perumahan Graha Arradea (Tahap 3 in Ciherang Village, Dramaga Subdistrict, Bogor District - West Java are built following the design principles of earthquake resistant houses. The research is conducted by observing the construction process at the location. Every stage of the construction process is recorded using a digital camera (Sony Cyber-shot DSC-W730). Interviews are also conducted on related parties to obtain accurate informations. The results conclude that the houses that are built have not met minimum requirements for design of earthquake resistant masonry houses with reinforced concrete frame. In addition to quality of some materials that have not met minimum requirements, the quality of workmanship of building component is also still low. The ties of all building components have not been properly connected.]]>
<![CDATA[Pemodelan dan Analisis Perilaku Balok Beton Bertulang yang Berbeda Diameter Akibat Variasi Tata Letak Tulangannya ]]>
<![CDATA[Suku, Yohanes Laka]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.17303
<![CDATA[Analysis of the effect of the layout of reinforcement in reinforced concrete beams with different diameters to understand behavior and layout position of reinforcement produces the maximum of load capacity and ductility. Modeling and analysis using ANSYS program, the experimental test beam type OA1 and A1 from the University of Toronto (Vichio & Shim, 2004) was used as a benchmark and models which varies in layout of reinforcement. The number of models analyzed is a total of fourteen models consisting of seven models without stirrups and seven with stirrups. Beam behavior observed in the form of load capacity, deflection, ductility, stiffness and crack patterns. Results showed that: the layout of reinforcement affects the behavior of reinforced concrete beam; on the same width of reinforcedment, one layer reinforcement has greater load capacity and rigidity but smaller ductility than two layers; the layout of reinforcement in general does not affect the pattern of cracks; the collapse of the beam without stirrups is caused by the diagonal tension and the beam with stirrups by shear and rupture due to the press; the layout of reinforcement produces the largest load capacity and ductility of the largest is model OA1 and OA1,4 on the beams without stirrups and models A1 and A1,5 on beam with stirrups.]]>
<![CDATA[Evaluasi Kinerja Campuran Beraspal dengan Bitumen Hasil Ekstraksi Penuh dari Asbuton ]]>
<![CDATA[Suaryana, Nyoman]]>;
<![CDATA[Susanto, Iwan]]>;
<![CDATA[Ronny, Yohannes]]>;
<![CDATA[Sembayang, Ida Rumkita]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.18175
<![CDATA[Asbuton is a natural rock asphalt that can be found on the island of Buton in Southeast Sulawesi province, has a large deposits but not yet well utilized. This research aims to find out the performance of asphalt mixtures AC-WC (Asphaltic Concrete Wearing Course) and HRS-WC (Hot Rolled Sheet Wearing Course) using bitumen results from full extraction of asbuton. The research was done by experimental methods through laboratory tests then its performance was compared to convensional mixtures using asphalt oil with penetration grade of 60. The results obtained showed that the bitumen of asbuton did not meet the specification of bitumen based on penetration grade. Characteristics of hot mixture asphalt using bitumen of asbuton showed better performance in terms of the Marshall stability namely 1871 kg higher than the convensional hotmixture of asphalt, with 1100 kg for AC-WC and 1241.9 kg compared with 1094 kg for HRS-WC. In addition, the results of deformation resistance tests showed asphalt mix with pure asbuton more resistant to rutting shown by higher dynamic stability value namely 4200 track/mm compared with 492 track/mm for AC-WC and 2739 track/mm compared with 325 track/mm. The modulus resilient value of mix with pure asbuton is also higher at temperature of 25°C and relatively the sameat temperatures of 35°C and 45°C. While the resistance of fatigue for AC-WC and HRS-WC on the test tensile strain of 150 µs were relatively the same as hotmix asphalt using asphalt oil penetration grade of 60, but on test of  a larger tensile strain has worse fatigue resistance, especially for AC-WC.]]>
<![CDATA[Aplikasi Geolistrik pada Pemetaan Daerah Intrusi Air Laut di Pantai Candidasa ]]>
<![CDATA[Pujianiki, Ni Nyoman]]>;
<![CDATA[Simpen, I Nengah]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.17574
<![CDATA[To know the magnitude of sea water intrusion that occurred in Candidasa area need to be mapping by using Geo-electric Method. Geo-electric method is one Geophysical method that works by injecting an electric current into the ground and then measured the potential difference it generates. Based on the data of electric current and potential difference, resistivity will be obtained in the research area. The result of sea water intrusion mapping in Candi Dasa beach area indicates that sea water intrusion has occurred but not yet on the status of conspiracy. If groundwater extraction is not restricted, the level of intrusion will continue to increase. Contour resistivity indicates that there has been a sea water intrusion in the Candidasa Tourism Area in a mild status in the southeast area at a depth of 5-10 m. The measured rock resistivity values in the study sites ranged from 0.35 to 1800 ohm.m, the seawater intrusion criteria occurred at a resistivity of 0.5 - 30 ohm.m. The results of the study are expected to give policyholders input on sea water intrusion in Candidasa Tourism area so that appropriate policy steps can be taken.]]>
<![CDATA[Sifat Mekanis Beton Normal dengan Campuran Tepung Marmer ]]>
<![CDATA[Kushartomo, Widodo]]>;
<![CDATA[Sari, Dewi Permata]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.17525
<![CDATA[This study is describe about the mechanical properties of normal concrete by adding of marble flour based on the mixed plan made. The compressive strength of the planned test object fc '20.0 and fc' 30.0 MPa was prepared by using the ACI method. The addition of marble flour in a concrete mixture varies from 0%, 5%, 10%, 15%, 20% and 25% to the weight of the cement used. Concrete test specimens were made in the form of cylinders 15.0 cm in diameter, 30.0 cm in height and made in the form of concrete beams measuring 15.0 cm x 15.0 cm x 75.0 cm, the type of mechanical testing performed in the form of compressive strength tests on cylindrical specimen, split tensile strength test on cylindrical specimen and flexure test on beam specimen. Curing is done by immersion technique at 25ºC and the test is done when the concrete is 28 days old. The test results show that the addition of marble flour to the normal concrete mixture can increase its mechanical properties by 26% for compressive strength, 24% for split tensile strength, and 17% for flexural strength. ]]>
<![CDATA[Analisis Stabilitas pada Lereng Sungai yang Dipengaruhi Pasang Surut ]]>
<![CDATA[Hamdhan, Indra Noer]]>;
<![CDATA[Pratiwi, Desti Santi]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.17169
<![CDATA[The slopes on river banks close to the estuary can be affected by tides, so it can experience stability in the river bank. Therefore, this research is conducted to determine the stability of river bank due to tides with numerical analysis. The numerical analysis method was done by 2D Plaxis Software that using the Finite Element Method. The analysis was conducted on a homogeneous slope with 2 (two) different soil permeability coefficient values, there are low permeability and high permeability. The analysis is modeled by fully coupled analysis between deformation and ground water flow analysis. The results of the analysis indicate that a tidal are influence the stability of the slope based on the safety factor value. The highest of safety factor value are shown in high tide condition, and the lowest occur at low tide condition. This happens because the high tide condition occur the addition of hydraulic pressure from the water that will resist the sliding, while the low tide condition will reduce the hydraulic pressure. This can be a concern to the stability of river bank with tidal condition in order to avoid the erosion during the low tide conditions. The comparison of safety factors between two different types of soil permeability are not significant, the difference are only 3%.]]>
<![CDATA[Indeks Stakeholders Pengelolaan Daerah Aliran Sungai dengan Pendekatan KISS di Indonesia ]]>
<![CDATA[Sriyana, Ignatius]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.18966
<![CDATA[Integrated watershed management (IWM) using KISS (coordination, integration, synchronisation, and synergy) method is believed to be the answer for problems lingering the integrated watershed management in Indonesia. How successful the management is depends on how capable of stakeholders are to performing coordination, integration, synchronisation, and synergy in managing the watershed. This study aimed at measuring the rates of coordination, integration, synchronisation, and synergy performed by each stakeholder by applying an "Index Rate" instrument. Research findings revealed that, simultaneously, the coordination, integration, synchronisation, and synergy obtained by the watershed management stakeholders resulted in a moderate rate (71.4). Partially, the rates obtained were as follows: moderate coordination (72.69); moderate integrity (72.50); moderate synchronisation (70.34); and moderate synergy (70.05).]]>
<![CDATA[Stabilisasi Tanah Ekspansive dengan Menggunakan Tanah Putih untuk Tanah Dasar di Daerah Godong Kabupaten Grobogan Jawa Tengah ]]>
<![CDATA[Wardani, Sri Prabandiyani Retno]]>;
<![CDATA[Muhrozi, Muhrozi]]>;
<![CDATA[Setiaji, Andi Retno Ari]]>;
<![CDATA[Riwu, Danny R]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.16275
<![CDATA[Problematic soils such as expansive soils are common in Indonesia. There are several methods to overcome the damage caused by expansive soil, such as by mixing the soil with additives. Some researchers have conducted research by mixing additives into expansive soil (cement, lime, fly ash etc), which work to increase soil strength and reduce swelling. Considering that the people in Buraen Village of Kabupaten Kupang use white soil as a substitute for cement, where the white soil has chemical constituents almost the same as those owned by cement, and contain CaO as it has lime, it is necessary to do research to determine the effect of white soil on physical and mechanical properties of expansive soil, so it can be used as an additive. This research was conducted at Soil Mechanics Laboratory, Civil Engineering Department, Engineering Faculty, Diponegoro University, Semarang.with soil sample from Godong, Central Java and white soil in Buraen Village of Kupang Regency, which purpose to find out the change of physical and mechanical properties of expansive soil that have been given some variation of mixture of white soil to the dry weight of the soil, with optimum moisture content from standard Proctor test results. The results of this study indicate that white soil can be used as an additive and the use of OMC for mixing is the OMC of expansive soil.]]>
<![CDATA[Faktor yang Mempengaruhi Keberhasilan Penerapan Teknologi Bidang Jalan dengan Kontrak Rancang Bangun ]]>
<![CDATA[Hendrawan, Hendra]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.18376
<![CDATA[Research and development in the roads sector is one of the coaching tasks of roads authority. To disseminate the results of research or technology that has been developed required the transfer of technology which one of them through technology implementation project. In the Year 2015-2017 Institute of Road Engineering has carried out the technology transfer process through limited project of implementation technology by using Design and Build contract. In the implementation project there are some constraints or factors that affect the implementation performance so that the resulting output is not optimal. The purpose of the study is to identify the critical determinants of project success of technology implementation with Design and Build contract and to give weighting. The method used in the study is descriptive qualitative analysis using data collection tools in the form of interviews and questionnaires to further analyzed by Analytical Hierarchy Process method. The results of the study showed that the factors that affect the successful of implementation technology projects is qualification of providers. The sub aspect that is considered has big influence is the financial ability for the qualification aspect, and the basic knowledge to the technology developed for technical aspect.]]>
<![CDATA[Komposisi Efektif Batok Kelapa sebagai Karbon Aktif untuk Meningkatkan Kualitas Airtanah di Kawasan Perkotaan ]]>
<![CDATA[Salim, Noor]]>;
<![CDATA[Rizal, Nanang Saiful]]>;
<![CDATA[Vihantara, Ricky]]>
<![CDATA[ MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018 ]]>
Publisher : <![CDATA[Department of Civil Engineering, Diponegoro University ]]>
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DOI: 10.14710/mkts.v24i1.18865
<![CDATA[Shallow groundwater in urban areas today is no longer fully utilized directly for domestic human needs. Some of the factors that cause, among others, due to pollution of springs by household waste, too much groundwater production resulting in the reduced amount of ground water. Finally the water function as a solvent and the neutralizer of the pollutant decreases as the water becomes less clear. By utilizing coconut shells as activated carbon mixed with silica sand, zeolite, and manganesee in this research can reduce turbidity, TDS and ground water PH so that the water produced can meet clean water standards according to PERMENKES/RI No.416/IX/1990. The objective of this study was to find an effective mixture composition to purify water using 5 different mixing compositions and it can be concluded in this study that coconut shells used as activated carbon amount to 35% of total media composition. So the most optimal composition to produce water with good quality of 35% active carbon, 25% silica sand, manganese 20%, 20% zeolite. In this composition also, Mangan (Mn) and Iron (Fe) have decreased and meet the quality standard of raw water quality as required by PERMENKES quality standard of Class B water quality.]]>
