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Jurnal Agregate
Published by Politeknik Negeri Ambon
ISSN : -     EISSN : 29645158     DOI : https://doi.org/10.31959/ja.v2i1
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Transportation
Jurnal Agregate adalah Jurnal yang memberikan informasi ilmiah tentang perkembangan ilmu pengetahuan dan teknologi bidang Struktur, Bahan Bangunan Dan Kegempaan, Teknik Sumber Daya Air, Transportasi, Management Konstruksi, Geoteknikal, Teknik Pantai Dan Tsunami.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 139 Documents
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ANALISIS LAPIS PERKERASAN TAMBAH DAN DRAINASE PADA RUAS JALAN WAEMITAL-KAWATU KABUPATEN SERAM BAGIAN BARAT Juan Devid Pattiradjawane; Selly Metekohy; Standy Johannes
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1555

Abstract

Handling road damage by overlaying the old road surface layer and planning a drainage system to improve the area value of the Waemital-Kawatu road section, West Seram Regency. The aim of the research was to determine the thickness of the overlay layer and the channel dimensions needed by the Waemital-Kawatu road section, West Seram Regency. The data used are primary data and secondary data then analyzed using the 2017 Road Pavement Design Manual Method for Additional Pavement Layers and the Rational Method for Drainage, then data processing is carried out referring to these regulations. Based on the results of this research, it was obtained that the CBR of class A aggregate foundation layer was 54%. So that with a design life of 20 years and a traffic value on the design lane of 801,068.59, the pavement layer thickness (overlay) with AC-WC = 40 mm, AC-BC layer thickness = 60 mm, class A aggregate layer thickness = 400 mm is obtained. . The results of the calculation of the drainage channel for a 5-year return period obtained a planned rainfall of 134,259 mm, with a population growth percentage of 1.1% per year so that the population of Waemital Village in 2026 is 7,443 people. From the results of the analysis of the drainage system, it was found that the planned discharge of the drainage channel on the Waemital-Kawatu Road Section was 0.0635 m3/sec, and the discharge of the drainage channel on the Waemital-Kawatu Road Section was 0.078197 m3/sec, then it was found that the discharge capacity of the channel was greater from the design discharge, so that the plan dimensions are declared safe.
ANALISIS FAKTOR-FAKTOR PENYEBAB TERJADINYA REWORK PADA PROYEK PEMBANGUNAN HOTEL ZEST AMBON Siti Patimah Daeng Simamang; La Mohammat Saleh; Willem Gaspersz
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1593

Abstract

As a developing country, Indonesia cannot be separated from development and development in all fields, one of which is the construction and development of the construction business sector. The success of a project is largely determined by the good cooperation between the owner and the service provider. If the technical implementation is not good, it will have a bad impact on project performance, one of which is rework. The word rework in the Big Indonesian Dictionary is translated as rework or rework. Rework on construction projects is caused by errors in planning, wrong work procedures, and lack of supervision and can result in several losses, such as cost, time, and quality of work. This research was conducted by interviewing and distributing questionnaires to the construction project of Hotel Zest Ambon as many as 30 respondents. Respondents selected were implementers, supervisors, foremen, and workers. The questionnaires distributed were related to the factors causing the rework on the Zest Ambon Hotel construction project, which is located on Jl. Imam Bonjol, Kel Ahusen, Sirimau, Ambon City. Then the research results were processed using SPSS 26, using 4 methods of analysis, namely validity test, reliability test, descriptive analysis, and factor analysis to get the factors causing the rework and the dominant factors causing the rework. The results of the research show that there are three factors that cause rework, namely design and documentation factors with a mean value of 4.53, resource factors with a mean value of 4.37, and managerial factors with a mean value of 3.80. And the dominant factor is the design and documentation factor with Eigenvalues ​​> 1, which is 1.50.
ANALISIS PENGARUH SUHU CAMPURAN AC-WC TERHADAP BERAT JENIS PEKERJAAN JALAN TANIWEL-SALEMAN PULAU SERAM Najar Rumbia; David Daniel Marthin Huwae; Elisabeth Talakua
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1604

Abstract

This condition causes the asphalt mixture to be unable to be overlaid on the road work site because the temperature of the mixture is below the overlay and compaction temperature. According to the provisions of the asphalt mixture that has experienced a decrease in temperature can no loger be used. But the reality that happens a lot in the field is that sanding is still done and followed by the next stage, namely compaction. Therefore, it is necessary to conduct research on the effect of heating on the concrete asphalt layer mixture, namely hot rolled sheet-Base (HRS-Base). The method used, the effect of AC-WC asphalt mixture temperature on the specific gravity of road work is . From yhe results of the marshall analysis, the value of marshall parameters that meet the requirements is in the range of asphalt content 4.50-5.80 so that the optimum asphalt content is obtained at the middle value of the limit range above is 5.12%. Comparison of asphalt temperature to field temperature and lab asphalt temperature. The asphalt temperature in the lab is 5.5% asphalt content and the asphalt temperature used in the lab is 160°C, 150°C, 140°C, 130°C, while the asphalt content used in the field is 5.0% asphalt content and the asphalt temperature used in the field is 125°C, 135°C, 140°C, 145°C. Further research needs to be carried out in the form of marshall soaking tests with the intention of measuring the durability of the binding/adhesion of asphalt mixtures to the influence of temperature.
PENGARUH INDEKS PLASTISITAS AGREGAT HALUS SUNGAI WAI-TUNSA TERHADAP DAYA DUKUNG LAPIS FONDASI AGREGAT KELAS-B Frisca Anastasya Leatemia; Selviana Walsen; Hendrie Tahya
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v1i1.1633

Abstract

"The Effect of the Plasticity Index of Fine Aggregate of the Wai-Tunsa River on the Carrying Capacity of Class-B Aggregate Base Layers". This thesis is under the guidance of Ms. Selviana Walsen and Mr. Ir. Hendrie Tahya.The purpose of this study is to obtain the effect of the relationship between the value of the Plasticity Index and the CBR value for the final result to be able to determine the carrying capacity of the Class-B Aggregate Base Layer.This study used situ material from the Wai-Tunsa river, Sabuai village, East Seram Regency, and mixed soil which also came from the area around the location where the situ material was taken. The addition of soil to the site was varied by 4%, 8%, 12%, and 16% and then an examination of the Plasticity Index and compaction was carried out to obtain the optimum water content from the optimum water content, a Laboratory CBR examination was carried out to obtain the CBR value.Without the addition of soil, the sand material has a Plasticity Index value = of 4.15% and CBR = of 64.65%. 4% addition of soil obtained IP = 6.88%, CBR = 60.33% , Wopt = 24.15%, and ᵞdmax = 1.40 gr/cm3. 8% variation obtained IP = 7.53%, CBR = 57.95% , Wopt = 24.26%, and ᵞdmax = 1.39 gr/cm3. 12% variation obtained IP = 11.12%, CBR = 56.78% , Wopt = 26.70%, and ᵞdmax = 1.41 gr/cm3. 16% variation obtained IP = 12.08%, CBR = 54.33% , Wopt = 27.76%, and ᵞdmax = 1.40 gr/cm3.It can be concluded that the increase in the value of the Plasticity Index will affect the decrease in the value of the CBR value.Keywords: IP, CBR, Class-B Aggregate.
PERENCANAAN CAMPURAN BETON MENGGUNAKAN AGREGAT QUARY WAI-TUNSA DAN PERAWATAN DENGAN AIR LAUT DAN AIR TAWAR Fara Dina; Selviana Walsen; Abraham Tuanakotta
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v1i1.1634

Abstract

"Concrete Mix Design Using Quarry Wai-Tunsa Aggregates and Treatment Using Seawater and Freshwater". This thesis was under the guidance of Ms. Selviana Walsen and Mr. Abraham Tuanakotta.This study discusses the effect of aggregate due diligence on concrete mixtures and the effect of curing concrete using seawater and river water on the characteristics of concrete. Based on the conditions in the field, that development in the field of concrete construction used in the area uses more aggregates from rivers. The Wai-Tunsa River, which is one of the major and closest rivers in the area, is the main location for the community to collect aggregates and the Wai-Tunsa River has never been studied before on its aggregates. So that it still cannot be fully utilized, because it is not known for sure the level of its resistance when used as a concrete construction material.The purpose of this study is to explain the suitability of aggregate in concrete mixes and the effect of water type on variations in concrete curing using seawater and fresh water.In this study, Tonasa cement was used with a total of 2 immersion variations and 12 cylindrical specimens with a diameter of 15 cm and a height of 30 cm. The seawater immersion variation uses the same standard mix design as the freshwater immersion variation. Tests were carried out in the form of workability checks, compressive strength, and absorption values. Do the compressive strength results show that at the age of 28 days, all specimens treated with seawater were higher than concrete treated with river water with a value obtained for seawater-treated concrete of 25.66 N/mm? and the value obtained from fresh water-treated concrete is 25.10 N/mm.Keywords: compressive strength, seawater, treatment variation, Job Mix Formula
PERENCANAAN KOMPOSISI CAMPURAN BETON MENGGUNAKAN AGREGAT 10/20 DAN 20/30 Tilsa M Amahoru; Soumokil Hengki Johnny; Sulastri Kakaly
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v1i1.1635

Abstract

"Concrete Mix Planning using Gradations Size 10/20 and 20/30 This thesis is under the guidance of Soumokil Hengki Johnny and Sulastri Kakaly.The purpose of this study was to produce a concrete mix composition with variations of coarse aggregate gradations of 10/20 and 20/30 and to produce compressive strength of concrete with variations of coarse aggregate gradations of 10/20 and 20/30.Various studies on concrete have been carried out by many experts both in terms of material, composition, additives, and others. In this study, the authors used aggregates of 10/20 mm and 20/30 mm. The results of the concrete compressive strength test conducted at the Ambon State Polytechnic Laboratory showed that the characteristic concrete compressive strength for concrete using 10/20 mm aggregate at ages 7,14 and 28 were 20, 48 MPa, 26,70 MPa, and 30 respectively. .10 MPa. Whereas concrete using 20/30 mm aggregate at ages 7, 14 and 28 days respectively was 20.66 MPa, 24.53 MPa, and 31.18 MPa. From the results of the compressive strength test, it was found that there was a decrease in the compressive strength of concrete using large-size aggregate at the age of 14 days for 20/30 aggregate. The larger aggregate size can affect the compressive strength of the concrete, the compressive strength of the concrete will decrease if the maximum size of the aggregate increases and will also increase the difficulty in the process.Keywords: Aggregate Variation Concrete 10/20 And 20/30, Material Characteristics, Mix Design.
ANALISA PERHITUNGAN SEDIMEN PADA SUNGAI WAY LELA KOTA AMBON Octovianus Antonius Toreh; Julius Buyang
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v1i1.1641

Abstract

Rivers are one of the natural resources whose existence is often used by humans for various purposes, including for the provision of irrigation water, raw water, industry, transportation and others. As stated in the law on water resources No. 7 of 2004, the implementation of utilization must be carried out continuously and comprehensively.Sedimentation makes rivers also often cause problems for humans, including when river water overflows or river water levels are higher than desired by the people around the river environment or in general terms it is known as having caused flooding in land around rivers especially through urban areas that are quite densely populatedThe results of sediment calculations at Way Lela obtained a volume of 2142 m3 and when compared with a sediment volume of 1328 m3 it needs serious attention from the relevant agencies, this is because the sediment capacity is close to the maximum. Keywords: Sedimentation, Way Lela
TINJAUAN STRUKTUR ATAS (KOLOM DAN BALOK) PEMBANGUNAN GEDUNG GEREJA LAHAIROI HATIVE BESAR Musper David Soumokil
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In the construction work of the Lahairoi Church Building, Hative Besar Village, Ambon City, where the column and beam structures used reinforced concrete structures the planning was not made with good analysis but was designed according to the work experience of several local builders. From these findings, the authors would like to review the calculation of column and beam structures in the Lahairoi Church Building Construction. The purpose of writing based on the problem formulation above is, to determine the safety of column and beam structures against working loads. The purpose of writing based on the problem formulation above is, to determine the safety of column and beam structures against working loads. The research method used is descriptive method, where this research focuses on the implementation of an activity or program, in this case the Lahairoi church building construction project. The results of the structural analysis obtained that the 1st floor beam support reinforcement was 7 D19 and the field reinforcement was 4 D14. Ø14 sliding stirrups with 150 mm pitch. 4 D19 column reinforcement and Ø14 shear reinforcement stirrups 105 mm apart. Keywords: Superstructure, (Columns and Beams)
PRODUKTIVITAS TENAGA KERJA PADA PROYEK PEMBANGUNAN REVITALISASI DAN PENGEMBANGAN ASRAMA HAJI WAIHERU AMBON Tomabuji Talaohu; Tonny Sahusilawane; Maslan Abdin
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1679

Abstract

The revitalization and construction of the Waiheru Ambon hajj dormitory building, the method used in this research is the validation test, reliability test, f test and t test using the SPSS V16 tool where in this method the questionnaire data will be obtained which will then be analyzed with the SPSS V16 tool. The research results were obtained based on the results of data analysis that has been carried out to solve the problem in this research where when conducting research on project implementation such as column casting work, it is often found that the workforce is not effective and efficient when pressing the vibrator so that when dismantling the formwork you can see many columns. which is corroded, then obtained: 1) The positive influence between competence on labor productivity can be seen from the t-count of  5.149 > t-table 1.724 and sig value = 0.000 < 0.05 which means that competence is very influential in influencing labor productivity. 2) The positive effect between skills on labor productivity can be seen from the t-count of 3.732 > t table 1.724 and sig value = 0.001 < 0.05 which means that skills is very influential in influencing labor productivity. 3) The positive effect of work discipline on labor productivity can be seen from the t-count of 11.992 > t-table 1.724 and sig value = 0.000 < 0.05 which means that work discipline is very influential in influencing labor productivity. 4) The positive influence between the level of income on labor productivity can be seen from the t-count 3.968 > t-table 1.724 and sig value = 0.001 < 0.05 which means that the level of income is very influential in influencing labor productivity. 
Evaluasi Kinerja Stgruktur Gedung BPJS Kesehatan Cabang Ambon Terhadap Gempa Dengan Metode Pushover Vector R. R. Hutubessy
Journal Agregate Vol. 1 No. 1 (2022): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v1i1.1686

Abstract

On September 26th 2019, an earthquake of 6.5 SR hit Kairatu, West Seram. Since West Seram is close to Ambon, the earthquake was greatly felt as well. Many people were panicked and run out from their houses and several buildings were severely damaged, including the MIPA building of Unpatti, the Medicine building Unpatti and the building of BPJS Kesehatan. Therefore, it is a must to understand that the structure evaluation of certain building is highly needed in order to understand the building that we own. The improvement of science and technology has greatly helped the world of civil engineering in planning and analyzing the performance of certain building in order to do the Structure Evaluation of the building of BPJS Kesehatan Ambon towards the Earthquake using Pushover Method. The static non-liner analysis with the use of Pushover analysis method showed that a building could only hold the earthquake of 615,53 ton. Reviewed based on the C. F. Ritcher scale, that worth is on 4 – 4.9 (magnitude which is in light category. The limit of the roof drift ratio is obtained by a maximum total drift of 0.000647 while the maximum in-elastic drift is -0.00026 and is included in the Immediate Occupancy (IO) performance level, the effective base shear force in a linear state is smaller than the design base shear value (V = 71.085 < V plan 115.464 tons. It is shown that the structure could be non-linear when the collapse happened.Keyword: Pushover Analysis, Level of Performance, Shearing Stress

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