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Ikhwan Arief Purnama
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Jl. Jenderal Ahmad Yani, Bansir Laut, Kec. Pontianak Tenggara, Kota Pontianak, Kalimantan Barat 78124
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Retensi
Published by Politeknik Negeri Pontianak
ISSN : -     EISSN : 27750655     DOI : https://doi.org/10.31573/retensi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
Retensi adalah Jurnal yang bertujuan untuk mempublikasikan artikel/paper yang didedikasikan untuk semua aspek perkembangan terkini yang luar biasa di bidang rekayasa teknik sipil. Redaksi akan menerima sumbangan artikel ilmiah dari para peneliti, pendidikan dan pemerhati masalah-masalah atau focus and scope dibidang struktur, jalan raya, jembatan, transportasi, geoteknik, manajemen kontruksi, serta material dan bahan bangunan.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 10 Documents
 1 
Search results for , issue "Vol. 2 No. 1 (2021): Retensi" : 10 Documents clear
KARAKTERISASI SIFAT FISIK DAN MEKANIK TANAH TIMBUNAN BABALESI YANG BERDASAR DARI LIMBAH BAUKSIT DAN BAKTERI PROBIOTIK: KARAKTERISASI SIFAT FISIK DAN MEKANIK TANAH TIMBUNAN BABALESI YANG BERDASAR DARI LIMBAH BAUKSIT DAN BAKTERI PROBIOTIK marini, lelly; Hariyani, susi; Purnama, Ikhwan Arief
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.405

Abstract

Bauxite waste in the form of red mud is known as waste could pollute water and soil in theenvironment around the mining area and endanger public health if not given advance prevention. Bythe increasing amount of waste and the growing amount of bauxite production, this problem becomeimportant issue for the mining sector, the government and the surrounding public directly affected.Utilization on a large scale and environmentally friendly are the points in this bauxite waste solution.The Babalesi landfill for road construction is a consideration in utilizing bauxite waste by usingprobiotic bacteria as a modifier. The feasibility and potential testing of Babalesi soil is carried out byphysical and mechanical tests of the soil based on ASTM Standards. These tests produce parametersthat refer to the AASHTO and USCS Classifications to determine the requirements for embankment2soil. For the physical test in the initial test of the red mud condition, the parameters indicated the A-7-6 classification, namely clay with poor quality. Furthermore, the physical test on Babalesi soilshowed A-4 classification, namely silt soil with medium quality. Meanwhile, the mechanical test forboth conditions, namely the original red mud condition and the Babalesi soil condition, could not becarried out because even in dry conditions, Babalesi soil proved to be very hard, but if it was inwatery conditions as a procedure in the mechanical test, it could not be formed and the mechanicalparameters could not be measured. The results of the physical test concluded that Babalesi landfillmeet the requirements and could be recommended as a road construction embankment. Themanufacture of Babalesi soil could be carried out directly in the waste pond by layered way usingheavy equipment as a stirrer of bacterial solution and bauxite waste.
PERENCANAAN MANAJEMEN KONSTRUKSI PADA PEMBANGUNAN GEDUNG ASRAMA LEMBAGA PENJAMINAN MUTU PENDIDIKAN PROVINSI KALIMANTAN BARAT: PERENCANAAN MANAJEMEN KONSTRUKSI PADA PEMBANGUNAN GEDUNG ASRAMA LEMBAGA PENJAMINAN MUTU PENDIDIKAN PROVINSI KALIMANTAN BARAT dewi nuryadin, rizka rusmin evita; Agus, watini
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.423

Abstract

Project management is an important factor in the implementation of a project, which will affect the cost, timeand quality. Problems that result in interrelated planning, scheduling, control and are the main requirements forevery project success, in these problems there will be many influencing factors, to achieve maximum results in abuilding construction project, a mechanism is needed that can increase the efficiency and effectiveness ofproject management. of available resources. This can be realized through a management planning system thatmeets the criteria for cost (budget), time (quality), human resources (labor), and a field work safety system. The method used in this management plan is to compare the analysis of the labor unit using the SNI method andthe BOW method, and to obtain a budget plan for both methods. In time management, namely counting thenumber of jobs in each item, making the Critical Path Method (CPM), making bar charts, and making S curves,aspects of human resource management are calculating the number of workers on each work item, Occupationalsafety and health management is knowing the hazards and work control health, knowing personal protectiveequipment and knowing work protective equipment.Based on the SNI method, the Cost Budget Plan (RAB) is Rp. 6,300,380,000.00 and based on the BOW methodof the Budget Plan, the amount of Rp. 9,745,770,000.00, with a Plan time of 120 days or 17 weeks.
PERANCANGAN STRUKTUR BETON BERTULANG GEDUNG HOTEL AL-HAJJ 6 LANTAI JALAN LETNAN JENDRAL SUTOYO KOTA PONTIANAK: PERANCANGAN STRUKTUR BETON BERTULANG GEDUNG HOTEL AL-HAJJ 6 LANTAI JALAN LETNAN JENDRAL SUTOYO KOTA PONTIANAK idiris, nurianda; Asmadi, Asmadi; Syahrani, Deny; setiawan, randy
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.424

Abstract

Hotel Al-Hajj 6 (six) floors is a supporter of infrastructure for Hajj pilgrims and is also common with thelocation of the hotel in the middle of the city, namely in the district of South Pontianak, Pontianak City Designof reinforced concrete structure Al-Hajj hotel building is planned 6 floors with 3 star hotel standards.Indesigning this hotel prioritizes the strength of structure with the concept of reinforced concrete.This hotel-life method collects soil data and image data as a basis for calculations. In its depiction using theAutoCad program and engineering analysis using the SAP 2000 3D program and the calculation of buildingstructures refers to SNI 03-2847-2013 for concrete structures, SNI 1727-2013 regarding minimum load andLoading Planning for Houses and Buildings (PPURG) 1987 and SNI 1729-2019 for earthquake-resistantbuilding structures.The result of the design of the structure in the form of thick 90 mm shop floor plate with reinforcement φ6 andground floor s / d 6th floor has a plate thickness of 130 mm φ8, the dimensions of the parent beam structure are40 x 70 cm with tree bone D19 and bone begel φ8-320 mm child beam 30 x 60 cm bone tree D16 and bone φ8-270 mm and ring beam and bone begel φ6-170 mm and for ring beam 20 x 40 cm bone tree D16. Columndimensions 60 x 60 cm of tree bone D22 and bone begel φ8-190 mm foundation using a stake of 450 x 450 mmwith pile cap 3.9 x 3.9 with bone and solid bone with a depth of 22 m. From the results of the design andcalculation of the structure of this hotel can be applied on the ground and for analytical purposes in theplanning of the next building.
PERENCANAAN MANAJEMEN PROYEK KONSTRUKSI PADA KANTOR KESYAHBANDARAN DAN OTORITAS PELABUHAN KABUPATEN KETAPANG: PERENCANAAN MANAJEMEN PROYEK KONSTRUKSI PADA KANTOR KESYAHBANDARAN DAN OTORITAS PELABUHAN KABUPATEN KETAPANG utami, sonia; Arianti, iin; Konstatinus, ayub; Cahyani, yasnita
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.426

Abstract

Ketapang Regency is one of the areas that has a considerable influence on the socio-economicdevelopment of the community, especially sea transportation. In facilitating the supervision of theentry and exit of sea transportation at the port of Ketapang Regency, it is necessary to build theHarbormaster Office and the Port Authority. In the construction of the Ketapang RegencyHarbormaster and Port Authority Office, it is necessary to have good and correct planning in terms oftime, cost, quality, human resources, and an environmental occupational safety and healthmanagement system so that the project can be completed on time and efficiently. The method used inthe management of this Construction Project is the SNI method covering five aspects, namely costmanagement in the form of a budget plan, time management in the form of a barchart, S curve andnetwork planning, human resource management in the form of labor requirements, qualitymanagement in the form of a work plan of requirements. requirements and management systems foroccupational safety and health in the form of the number of personal protective equipment required.The costs needed for the construction of the Kesyahbandaran Office and the Port Authority ofKetapang Regency are 9,129,893,000.00 within a period of 24 weeks 180 calendar days, with aworkforce requirement of 113 workers per week, a work plan with conditions as a reference, as wellas 78 pieces of personal protective equipment needed.
PERHITUNGAN STRUKTUR BETON BERTULANG PADA PEMBANGUNAN HOTEL 7 LANTAI DI JALAN AHMAD YANI 2 KABUPATEN KUBU RAYA: PERHITUNGAN STRUKTUR BETON BERTULANG PADA PEMBANGUNAN HOTEL 7 LANTAI DI JALAN AHMAD YANI 2 KABUPATEN KUBU RAYA Khairunnisa, Hafidza Ulfa; rasiwan, rasiwan; supardi, iwan
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.427

Abstract

Increasing growth of economic in developing product and services that currently happened in kubu rayadistrict encourage development of hotel planning.Development of 7th floor hotel building in Ahmad Yani street is expected to increase economy, technology access,unisolated the area, increase mobility and social contacts of the community activities.Kubu Raya district is a soft soil area, that is why construction analysis in hotel building needed, todevelopment of reinforced concrete hotel, it is expected the building fill the safety factor and comfiness. Theanalysis did to fulfil that aspect with the applicable regulation such as dead load which refers to the LoadingPlanning Guidelines for Houses and Buildings 1987, Indonesian National Standard 1727:2013 used to analyzewind loads and live loads on buildings, Indonesian National Standard 1726:2019 used to analyse earthquake loadlike define the site class, seismic design coefficient, also seismic force resisting system. Indonesian NationalStandard 2847:2013 used to design construction material that will used in preliminary design of structuralelement, concrete covers, also formula used from slab, beam, column, and foundation. Increasing growth of economic in developing product and services that currently happened in kubu rayadistrict encourage development of hotel planning.Development of 7th floor hotel building in Ahmad Yani street is expected to increase economy, technology access,unisolated the area, increase mobility and social contacts of the community activities.Kubu Raya district is a soft soil area, that is why construction analysis in hotel building needed, todevelopment of reinforced concrete hotel, it is expected the building fill the safety factor and comfiness. Theanalysis did to fulfil that aspect with the applicable regulation such as dead load which refers to the LoadingPlanning Guidelines for Houses and Buildings 1987, Indonesian National Standard 1727:2013 used to analyzewind loads and live loads on buildings, Indonesian National Standard 1726:2019 used to analyse earthquake loadlike define the site class, seismic design coefficient, also seismic force resisting system. Indonesian NationalStandard 2847:2013 used to design construction material that will used in preliminary design of structuralelement, concrete covers, also formula used from slab, beam, column, and foundation. Structural analysis of reinforced concrete 7th floor hotel building in Ahmad Yani 2 street resulting slabthickness with 12 and 10 cm, beam with 35x 70 cm, 30 x 50 cm, 25 x 45 cm, 15 x 30 cm, 2 type of column withsize 70 x 70cm, 30 x 30cm also distributed to Pile Cap with 5 spunpile diameter 50 cm.
PERBAIKAN SIFAT KIMIA RED MUD(RM) DENGAN MENGGUNAKAN BAKTERI PROBIOTIK: PERBAIKAN SIFAT KIMIA RED MUD(RM) DENGAN MENGGUNAKAN BAKTERI PROBIOTIK marini, lelly; Hariyani, susi; Anggraini, irene
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.428

Abstract

ed mud (RM) is waste from a series of bauxite mining processes, with the amount of RM producedaround 1.2 – 1.4 tons for every 1 tonne of alumina produced. RM has chemical properties that are quitedangerous because in addition to containing a lot of non-degradable metals, it also contains a strong base witha pH of around 13-14. If released in its original condition, RM is very dangerous because it could cause waterand soil pollution in the mining environment and could cause disease in humans. All the time, the handling ofRM is by making tailing dam or piling up the subsoil of the highway in the area around the mine which costs alot of money to restore the pH close to neutral before use because the requirement to be released into theenvironment around the allowable pH value is a minimum of 9. Therefore, in this study, the author uses asolution, namely by utilizing the biological activity of probiotic bacteria microorganisms, it could live in analkaline environment and are safe for humans and environmentally friendly. By mixing RM with activatedprobiotic bacteria which will be carried out direct observation of the sample and measuring the pH value. Witha total sample of 27 samples based on variations in the number of active probiotic bacteria mixed and theincubation time of bacteria, the results showed that the more active probiotic bacteria were mixed into the RMand the longer the incubation time of the bacteria, the pH indicator showed close to neutral, namely 8-9. It isalso supported by direct observations based on shape, color, smell and touch, showing that the harmfulchemical properties of RM are decreasing.
PERANCANGAN STRUKTUR BETON BERTULANG RUMAH SUSUN ATLET PONTANAK 6 LANTAI: PERANCANGAN STRUKTUR BETON BERTULANG RUMAH SUSUN ATLET PONTANAK 6 LANTAI Maulida-Akbar, Hasri-alief Bryantama; rasiwan, rasiwan; supardi, iwan
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.429

Abstract

The increasing population growth, especially in West Kalimantan, is still making efforts to equalize developmentto meet housing needs by seeking land availability by building infrastructure in the form of vertical buildings,namely flats. The construction of flats supports the needs of athletes or sports participants that function astemporary residences in order to maintain the athletes' concentration, mental and physical well-being. In thebuilding there is a structure of beams, columns, foundations, floor plates and roofs. In designing the structure, itis planned to be strong enough to withstand the forces that may occur according to the load calculation, both inthe form of vertical and horizontal forces, in designing the reinforced concrete structure of an athlete's flat whichconsists of 6 floors using a roof and concrete quality (fc'). 35 MPa and steel quality (fy) 420 MPa which iscalculated based on the Indonesian National Standard (SNI), namely SNI 03-2847-2013 because the use of SNI03-2847-2013 can meet the calculations carried out in this study and SNI 1726-2019, as well as using theSAP2000 application for force calculations - style inside. So that the plan drawing can be made according to thecalculation results obtained. From the calculation results obtained reinforcement for the floor slab structure witha thickness of 140 mm using field reinforcement and support reinforcement D10-175. The beams used are 400mm × 600 mm, 350 mm × 600 mm and 300 × 400 mm, with D19 main reinforcement and 10 mm beugelreinforcement. The column used is 500 mm × 500 mm with reinforcement using longitudinal reinforcementmeasuring D25 and 10 mm begel reinforcement. The foundation used is a pile foundation, with a pile size of 300mm × 300 mm and a pile cap of 2100 mm × 1350 mm × 750 mm with principal reinforcement D22-150 and D12-150.
PERENCANAAN MANAJEMEN KONSTRUKSI PEMBANGUNAN GEDUNG AULA ASRAMA HAJI PONTIANAK: PERENCANAAN MANAJEMEN KONSTRUKSI PEMBANGUNAN GEDUNG AULA ASRAMA HAJI PONTIANAK Septiadi, Eki Hermi; Arif, robby Mauludy
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.430

Abstract

In project implementation, it is necessary to have a construction management plan so that projectimplementation can be well planned and in accordance with the Indonesian Standard (SNI). Therefore, it isnecessary to plan construction management on the construction of the Pontianak Hajj Dormitory Hall,especially on building structure work which aims to get a more efficient and effective final result for Cost,Duration Time, Human Resources (HR), Quality, Occupational Health Safety (K3 ) where these aspects areinterconnected in construction management planning.Sources of data used in this study are secondary data and primary data included in the qualitativemethod. Based on the processed data, the final results include the Implementation Budget Plan (RAP), TimeSchedule, Network Planning (NWP), Manpower Needs, Quality Control Tables, Identifying Hazards, RiskAssessment, Personal Protective Equipment (PPE), and Work Safety Equipment ( APK), which will be used as areference in the implementation of development. The results of the Calculation of the Implementation Budget Plan (RAP) for the construction of thePontianak Hajj Dormitory Hall is Rp. 5,177,381,673.21 (“Five Billion One Hundred Seventy Seven MillionThree Hundred Eighty One Thousand Six Hundred Seventy Three Rupiah”), as well as the calculation result oftime requirement or duration for development planning is 13 weeks or 86 calendar days. There must be goodcooperation for all parties involved because the success of a project is largely determined by careful planningand good management.
PERENCANAAN MANAJEMEN PELAKSANAAN PEKERJAAN STRUKTUR PADA GEDUNG RUMAH SAKIT UMUM DAERAH (RSUD) SIANTAN HILIR 4 LANTAI DI JALAN KHATULISTIWA KOTA PONTIANAK, KALIMANTAN BARAT: PERENCANAAN MANAJEMEN PELAKSANAAN PEKERJAAN STRUKTUR PADA GEDUNG RUMAH SAKIT UMUM DAERAH (RSUD) SIANTAN HILIR 4 LANTAI DI JALAN KHATULISTIWA KOTA PONTIANAK, KALIMANTAN BARAT Safitri, Hanifia Alma; Arena, Azza; Utomo, satriyo
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.431

Abstract

In a development project, there are several problems that cannot be avoided and often become obstacles to project progress. These problems generally include costs, processing time, resources and other problems. From the existing problems, it is necessary to have proper management planning so as to obtain development results that are in accordance with the requirements. Therefore, the authors carry out implementation management planning on the construction of the Siantan Hilir Regional General Hospital, which is used as the title of this final project. The method that the author uses in the discussion of implementation management is in the form of a cost, quality, time, human resource manaegement system and an occupational health safety management system on structural worl which includes foundations, beams, columns and floor plates. Based on the result of the analysis of the method that the author did, the cost of the structural work needed in completing the work on the construction project of the Siantan Hilir Regional General Hospital was Rp.28.262.918.846.19. For quality planning in the form of quality control and a list of specification tables. The time required to complete the work is 72 weeks. Furthermore, for human resources planning in the form of organizational structure and labor requirements as a means for the implementation of good work. As for K3 management planning, the things planned are in the form of identification and control of potential K3 hazard for each type of work.
ANALISIS SARANA DAN PRASARANA SMA MUJAHIDIN PONTIANAK: ANALISIS SARANA DAN PRASARANA SMA MUJAHIDIN PONTIANAK Maulana, Bagus; Andoni, Sulistyo Sapta; Rabihati, Etty; Riyanti, Rika
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.438

Abstract

Senior High School (abbreviated SMA) is a secondary level of formal education in Indonesia after graduating from Junior High School (or its equivalent). High school is taken within 3 years, starting from grade 10 to grade 12. The school that will be studied by the author has several problems that occur, therefore the author is interested in conducting research on facilities and infrastructure in the school. Therefore, the author submitted a questionnaire in order to find out what problems occurred in the school. The purpose of this study is that students are able to analyze the facilities and infrastructure of the Pontianak Mujahidin High School, able to overcome the problems that occur in the environment. The methods used in solving this problem are qualitative methods and quantitative methods. The qualitative method is subjective in nature, the research interacts directly with the object being studied. Meanwhile, quantitative methods are objective, independent research is what is being studied. Facilities and infrastructure problems that occur include the parking area which is enlarged by 33% from the initial area and the elevation of the parking area. The second is the widening of the dimensions of the enlarged drainage channel in order to prevent flooding. Finally, by increasing the dimensions of the classroom lighting so that the classroom lighting is sufficient.

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