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International Conference on Coastal and Delta Areas
Published by Universitas Islam Sultan Agung
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Core Subject : Science, Education,
Earth & Planetary Sciences Other
Arjuna Subject : Psikologi - Psikologi (Lain-Lain)
Articles 121 Documents
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Bitumen Modification Using Buton Natural Rock Asphalt Ayu Fitrianti; Rizal Palefi Hidayat; Gatot Rusbintardjo; Abdul Rochim
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

In Buton Island, an island located in South-East Sulawesi Island in Indonesia is found about 700 million tons natural rock asphalt (NRA) which have not been maximally utilized yet. Buton-NRA contains 20 to 30% of bitumen. This paper reported the experimental study on utilizing of Buton-NRA as additive of bitumen binder in hot mix asphalt (HMA) mixtures. Amount of 5, 10, 15, 20, 25% of very fine of Buton-NRA was added into the bitumen, resulted Buton-NRA-Bitumen’s binder. Penetration and softening point test were conducted to get penetration index (PI) value, an index to determine the temperature susceptibility of the binder. The results show that the Buton-NRA-Bitumen’s binder has low temperature susceptibility. Used as binder in HMA mixtures also shown that the Buton-NRA-Bitumen’s binder can improve the performance of the mixtures. Marshall Stability and stiffness of the mixtures are higher compared to that of base bitumen binder, especially Buton-NRA-Bitumen’s binder with 15% of Buton-NRA, Marshall Stability reaches 1620kg and stiffness 142kg/mm, while HMA mixtures with base bitumen (0% Buton-NRA) only has 1068kg of Marshall stability and 110kg/mm of stiffness. Keywords: Buton-Natural Rock Asphalt, Binder, Improve, Performance, HMA mixtures.
The Prediction of Broad Puddle Change Based on Land Subsidence Analysis in Semarang Pratikso Pratikso; Rahmat Mudiyono; Bagas Wahyu Adhi
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Semarang is the capital city of Central Java that has a population about 1.3 million people, the position of Semarang is very strategic as a regional transport. Semarang is divided into 2 parts namely Semarang Upper area and Semarang lower area. The soil layer of Semarang lower area is dominated by soft alluvial soil layers that continue to occur compression. These conditions effect this area most likely get the environmental impact caused by land subsidence. The objective of this study was to determine the large and duration of land subsidence that occurred in Semarang Barat district and its influence towards the area of inundation. The analysis of this research used 1D terzaghi method and plaxis software which then in overlay using GIS which yielded map of subsidence in the area. The calculation results that used 1D Terzaghi, the land subsidence of Mediterranean Housing was 91.11 cm for 27.11 years, Ronggolawe area subsidence was 24.40 cm for 18,50 years, and Jendral Sudirman area was 10 cm for 15,94 years, while using plaxis 8.2 software, the Perum Mediterania was 93.40 cm, Ronggolawe area was 26.22 cm, Jendral Sudriman area was 13.68 cm. Changes in the area of inundation in 2017 to 2047 amounted to ± 924,74 ha. Keywords: Land Subsidence, 1D Terzaghi, GIS, Plaxis
Study on the Feasibility of Construction of Logung Dam in Kudus Regency Tri Hartadi; Soedarsono Soedarsono; Moch Faiqun Ni'am
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

The availability of water in the increasingly rare dry season and the tendency of floods in the rainy season, is a problem that can not be solved completely in various regions in Indonesia. The construction of reservoirs is generally aimed at helping to overcome the problem of increasing water resources needs from time to time. The area of Kudus Regency is an area with relatively limited water resources. Therefore it is necessary to plan the construction of Logung dam in the hope that the surrounding ground water can be maintained, the forest can be grown, and in the end can preserve the existing water source. The aim of this research is to get an overview of Logung Dam plans that are economically feasible both from cost aspect and benefit aspect. To find out the feasibility of Construction of Logung Dam in Kudus Regency, Net Present Value (NPV), Internal Rate of Return (IRR) and Net Benefit Cost Ratio (Net B / C) will be performed. Keywords: economic feasibility, Logung dam, Kudus regency
The Effect Of Middleman Behavior to Economic Space on TPI Tawang, Gempolsewu Village Rowosari District Kendal Regency Ardiana Yuli Puspitasari; Yunia Alfianti; Mohammad Agung Ridlo
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Fish Auction Place is an economic space that has great influence for fishermen in marketing their catch so that fishermen can sell their catch as short as possible with good price and can create healthy market through pure auction. Based on Local Regulation of Kendal Regency Number 10 of 2010 concerning management and retribution of fish auction place in Kendal Regency, mention that to guarantee the balance of management of fish auction place in order to improve prosperity and standard of living of fisherman /coastal communities in Kendal District. However, in TPI Tawang area there is a problem that is middleman activity. The activity is very influential on the economic space TPI Tawang. Based on the above problems, the researcher wants to know the influence of behavior middleman to economic space TPI Tawang Gempolsewu Village. To achieve these objectives, several analyzes were conducted, among others, activities of middleman, economic space in TPI Tawang area and analysis of influence of middleman activity on economic space of TPI Tawang community of Gempolsewu Village. In this research using qualitative descriptive approach rationalistic with middleman activity variable and economic space in TPI Tawang area. Stages done in doing this writing is through several stages, among others, preparation, primary or secondary data collection, processing and presentation of data, data analysis, and stage preparation of reports. The conclusion of this research is middleman activity which is in TPI area of Tawang precisely at TPI Tawang dock influence activity in economy room that exist in area of TPI Tawang. The influence of middleman activity in Tawang TPI area can be seen from the activity system which can cause the decrease of activity and the decrease of economic space activity in Tawang TPI area. Keywords: Fish Auction Place, Middleman, Activity, Economy, Coastal, Space
THE IMPROVEMENT OF SOFT SOIL LAYER FOR TOLL ROAD EMBANKMENT ON JAVA NORTH SHORE A STUDY CASE ON JALAN TOL PEJAGAN PEMALANG Dito Senna Hardiman; Rinda Karlinasari
International Conference on Coastal and Delta Areas Vol 1, No 2 (2015): the 2th International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

To deal with soft soil, of Prefabricated Vertical Drain (PVD), Prefabricated Horizontal Drain (PHD) and geotextile were carrying out at Pejagan-Pemalang Toll Road Project. On construction, to monitor the settlement of embankment occurring due to the consolidation of soft soil, a set of settlement plates, piezometer and inclinometer were used. Settlement plate was used to monitor vertical settlement, piezometer was used to monitoring the change of excess pore pressure, and inclinometer was used to monitor the horizontally shifting embankment toe. All the monitoring instrumentations can then explain the PVD performance to accelerate the embankment consolidation.Keywords: prefabricated vertical drain, settlement plate, embankment consolidation
ALTERNATIVE SOLUTION TO OVERCOME THE CORROSION OF CRROSIVE ENVIRONMENT STRUCTURES Prabowo Setiyawan
International Conference on Coastal and Delta Areas Vol 1, No 2 (2015): the 2th International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

This paper aims to understand the cost-effective methods of corrosion problems solutions of structures constructed at corrosive areas. The solution is basically done by providing additional layer on the steel or concrete structural components. The study was done by reviewing the existing design standards and the research results conducted by the previous researchers as well as the publications issued by the company concerning on the corrosion problems solutions. It can be concluded that the corrosion problems decreasing the structural strength as well as life of the structure can be caused by chloride/carbonation, contact with water (moisture) and contact with oxygen. It can also be inferred that regarding to the purpose the corrosion problems solutions could be classified as corrosion protection, types of application and longevity. In addition, the chosen method and the product used to overcome the corrosion problems of the structures are affected and should be considered the local environment especially related to the chloride concentration, concrete properties, humidity and temperature.Keywords: steel structure, concrete structure, corrosive environments, corrosion problems solutions
Delta Preservation and Handling Diversion Abrasion Coastal Model of The Sudeten Wulan River (Case of Study in Land Arising Coastal Wedung, Demak, Central Java) Fatchur Roehman, ST. MT
International Conference on Coastal and Delta Areas Vol 1, No 1 (2015): Management and Engineering in the Sustainable Development on Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

The research makes the preservation of coastal security models in land development arose as an effort in face the impact of reclamation Marina Beach Semarang in theway making the Sudetan Wulan Beach and security of Semat Beach district of Jepara. The method used is the field survey method using the instrument as a guide in-depth interviews, direct observation, calculation of sediment and documentation. Sources of information from the local public and government. Triangulation techniques implemented in collecting the data. Meanwhile, in reducing data from public aspirations used Focus Group Discussion (FGD) Method. The data analysis was performed by observing the increase of land arises, quantitative and qualitativeapproach. Based on the result of analysis seen that the disaster in the coastal abrasion in Demak and Jepara is getting worse in Babalan Village, Wedung Regency. The effort that people do in face the abration in the area by making sudeten to right side in Babalan Beach. However, previous research results were not optimal in handling abrasion, one side Semat Coastal Jepara was erosion but on the other side in Wedung Beach annually formed delta (soil arising altered form of pond) which is enlarge, due to the results of the sediment carried by the flooding of Wulan Riveraccumulate in estuaries beach and wave scour sediment flows from the direction of change reclamation Marina Beach Semarang.
Impact Of Accented Speech On The Credibility Of International Exchange Courses; Challenges For Exchanging Knowledge And Experience In The Erasmus + Program Schmidt Oorbeek
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Rotterdam University of Applied Science(RUAS) and Sultan Angung Islamic University (UNISSULA) have established a professional exchange program, stimulating staff mobility and student mobility. While these exchanges have enriched our educational program, students report difficulty with processing information from the non-native English speaking lecturers.Speakers with a (heavy) accent are sometimes perceived as part of an out-group. Even without prejudice about out-group members, this has a negative impact on the credibility of the received information. The influence of accent on credibility poses a challenge on our exchange program, both for students and lecturers.In this article, several suggestions to a different approach are mentioned. First of all, the credibility challenge needs to be recognized.Futhermore, a program and famework for intercultural competence could provide students with tools to improve communication and cooperation. Lastly, students may demonstrate a more positive attitude and affect when listening to friends, compared to lecturers. The opportunities for student mobility should be maximized. This article explores the impact of accented speech and the challenges this presents to the exchange program of RUAS and UNISSULA, and gives suggestions to improve the benefits from student mobility and staff mobility. Keywords: education, international exchange, accented speech
Analysis Of Effect Of Human Resources, Allocation Of Funds, Materials, and Construction Equipment On Performance Of Road Maintenance In Jepara Regency Hanief Kurniawan
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

The availability of adequate facilities and road infrastructure is one indicator of community welfare. Jepara Regency Government through road maintenance program trying to keep the road condition to stay steady. Human resources, allocation of funds, materials, and construction equipment are the main factors determining road maintenance performance. This study aims to identify and analyze these factors so that it can be known the effect on road maintenance performance in Jepara regency. The results of the analysis conducted on the sample of respondents totaling 90 people showed that: 1) Human resources, allocation of funds, materials, and construction equipment respectively partially have a positive and significant impact on road maintenance performance; 2) Human resources, allocation of funds, materials, and construction equipment simultaneously have a positive and significant impact on road maintenance performance. Keywords: human resources, allocation of funds, materials, equipment, maintenance
Review of Recycled Asphalt Utilization (Rap) for Road Pavement Recycling Supoyo Supoyo
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Technological developments and advances in road construction are increasing with the creation of technologies in faster and more efficient road construction. One of the asphalt recycling technologies is the use of Reclaimed Asphalt Pavement (RAP) which is hot hot mixed material from the excavation of cold milling mixed with certain additive materials to improve the quality of asphalt for longer life of asphalt because it is considered faster and to reduce continued damage within a short time after repair. This recycled asphalt mixture research aims to know the value of AIV and APV values of each mixing variation. The percentage of RAP used is 23%, 27%, and 31%. Based on the result of research, it is found that RAP aggregate still fulfill the required physical characteristic ie AIV value equal to 6,6% and APV value equal to 20,4% and minimum type minimum weight 2,5, so tends to be more stable at same condition indicated by the stability value is large and the flow is not too low for the AC-BC mixture, but the gradation of RAP aggregate is not suitable for AC-WC mixed specifications so it needs gradation improvement. Keywords: Reclaimed Asphalt Pavement (RAP), AIV value, APV value, aggregate gradation

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