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INDRIATI MARTHA PATUTI
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INDONESIA
Composite Journal
Published by Universitas Negeri Gorontalo
ISSN : -     EISSN : 28075919     DOI : https://doi.org/10.37905/cj.v1i1.7
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
The journal aims to become an efficient means of publishing and distributing high-quality information from researchers, scientists, and engineers. The main scopes are as follows: Advances in Composite Materials, Computational Mechanics, Foundation and Retaining Walls, Slope Stability, Soil Dynamics, Soil-Structure Interaction, Pavement Technology, Tunnels and Anchors, Site Investigation and Rehabilitation, Ecology and Land Development, Water Resources Planning, Environmental Management, Earthquake and Tsunami Issues, Safety and Reliability, Geo-Hazard Mitigation, Case History and Practical Experience, Others
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 5 Documents
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Search results for , issue "Vol. 3 No. 1 (2023): Composite Journal" : 5 Documents clear
KAJIAN PERSEBARAN SPASIAL KONDISI LALU LINTAS KECAMATAN KOTA TENGAH, KOTA GORONTALO Labaika, Dimas; Lihawa, Fitryane; Rusiyah
Composite Journal Vol. 3 No. 1 (2023): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v3i1.52

Abstract

Persebaran spasial kondisi lalu lintas Kecamatan Kota Tengah, Kota Gorontalo. Tujuan penelitian untuk mengetahui persebaran spasial kondisi lalu lintas Kecamatan Kota Tengah, Kota Gorontalo. Lokasi penelitian di Kecamatan Kota Tengah, Kota Gorontalo di ruas Jalan Pangeran Hidayat, Jalan Jendral Sudirman, Jalan Madura, Jalan Arif Rahman Hakim, Jalan Andalas, Jalan Prof. Dr. H.B Jassin. Metode yang digunakan purposive sampling dengan kriteria terpilih. Pengumpulan data primer diperoleh langsung dari lapangan seperti data geometrik jalan, volume lalu lintas dan hambatan samping. Data sekunder yaitu gambaran umum jumlah penduduk serta lokasi penelitian. Waktu pengamatan selama 1 hari dari pukul 06.00-18.00 WITA dengan waktu interval 15 menit. Hasil diperoleh volume lalu lintas maksimum terjadi pada pukul 17.00-18.00 WITA di ruas Jalan Pangeran Hidayat sebesar 24.226 kend/jam, terendah di Jalan Madura 14.524 kend/jam. Hambatan samping tertinggi di ruas Jalan Jendral Sudirman dengan frekuensi 332 kode (M), terendah di Jalan Madura yaitu 101 frekuensi kode (L). Kecepatan arus bebas kendaraan tertinggi di ruas Jalan Andalas yaitu 48.30 km/jam, terendah di Jalan Arif Rahman Hakim yaitu 33.73 km/jam. Kapasitas jalan tertinggi di ruas Jalan Prof Dr. H. B. Jassin 3098 smp/jam, terendah di Jalan Pangeran hidayat yaitu 1305 smp/jam. Derajat kejenuhan, tertinggi di ruas Jalan Pangeran Hidayat dengan 1.20 DS, terendah di Jalan Madura yaitu 0.31 DS dan hasil data dibuat dalam peta spasial.
ANALISIS BERTH OCCUPANCY RATIO DAN KAPASITAS TERMINAL PETI KEMAS PELABUHAN GORONTALO Muchsin, Ria Septiani R; Kadir, Yuliyanti; Desei, Frice L.
Composite Journal Vol. 3 No. 1 (2023): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v3i1.57

Abstract

There is an increase in the volume of containers, so there must be an evaluation of the capacity of the container terminal, so that there is no density of ship and container flows which can have an impact on the decline in the economy of the Gorontalo region. The purpose of this study is to analyze the capacity of the Gorontalo Port container terminal in 2021-2035. The research location is in the Port of Gorontalo which is located on Jalan Mayor Dullah, Talumolo Village, Gorontalo City. The method used is simple regression to find the value of the Berth Occupancy Ratio (BOR), the value of Berth throughput (BTP), the value of the dock capacity and the area of ​​the container field for the next 15 years. The results showed that the value of the Berth Occupancy Ratio (BOR) at the Port of Gorontalo in 2021 to 2035 the value of the Berth Occupancy Ratio (BOR) was above 40% of the value suggested by UNCTAD (United Nation Conference On Trade and Development). in the next 15 years the value of the Berth Occupancy Ratio (BOR) will reach 101.78%. For employment for the next 15 years from 2021 to 2035, it requires a field area of ​​5,094 m2–6,032 m2 and the current existing field at Gorontalo port is found to be 18,126 m2, which means the field at Gorontalo Port can still accommodate containers until 2035.
TINJAUAN KARAKTERISTIK MARSHALL CAMPURAN ASPHALT CONCTRATE WEARING COURSE (AC-WC) MENGGUNAKAN LIMBAH PLASTIK POLY ETHYLENE THEREPHTHALATE (PET) Alkam, Moh. Alkam; Desei, Frice L.; Achmad, Fadly
Composite Journal Vol. 3 No. 1 (2023): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v3i1.68

Abstract

Asphalt mixtures have several disadvantages, such as permanent deformation caused by too heavy pressure by truckloads and cracks caused by heat and humidity. In addition, plastic wastes that are increasingly piling up provide opportunities to be used in asphalt mixtures to improve the performance of asphalt mixtures. Concerning this issue, research about the substitution of plastic waste in asphalt mixtures is highly essential to be conducted. Moreover, this research was performed by substituting plastic waste into the asphalt and then mixing it into aggregate. The asphalt weight was taken from optimum asphalt content, while the mixture process was performed at the temperature of + 170°C by employing a high-speed mixing technique to keep the temperature stable during the mixing process. In comparison, the compaction was conducted at the temperature of + 150-160°C. At the same time, the test object was made as many as 25 samples to determine the optimum asphalt content and 25 samples for a mixture of asphalt with plastic waste. The type of plastic used in this research was Polyethylene Terephthalate (PET), with a percentage of plastic waste contents of 0,3%; 0,6%; 0,9%; 1,2%, and 1,5%. The research finding obtained that the highest stability value was 1.176,06 kg at 1,2% plastic content. Specifically, the stability values that met the interim specifications for asphalt plastic mixture were 981,02 kg; 1.152,78 kg; and 1.176,06 kg at plastic contents of 0,6%, 0,9%; and 1,2%, respectively. The highest flow was 3,62 mm at 1,5% plastic content, and the highest MQ was 331,26 kg/mm at 0,9% plastic content. At the same time, the addition of plastic content tended to increase VIM in plastic asphalt mixtures. The VIM values were 3,79%; 4,10%, 4,19%; 4,29%; and 4,33%, respectively. Likewise, the addition of plastic contents could increase VMA values in asphalt mixture where the VIM values were 19,08%; 19,34%, 19,42%; 19,51%; and 19,52%, consecutively. In contrast, adding plastic content to the asphalt mixture could decrease VFA and density values. In detail, the VFA values were 80,15%; 78,81%; 78,41%; 77,99%,, and 77,82% respectively, whilst the consecutive density values were 2,32 gr/cm; 2,32 gr/cm'; 2,31 gr/cm; 2,31 gr/cm'; and 2,31 gr/cm. Based on this analysis result, it could be inferred that 1,2% plastic content was suitable for use in asphalt mixtures with a stability value of 1.176,06 kg. This value increased by 38% from the stability value of conventional asphalt mixtures.
EVALUASI METODE LEAN CONSTRUCTION DAN PENJADWALAN CRITICAL CHAIN PROJECT MANAGEMENT (STUDI KASUS REKONSTRUKSI JALAN RUAS GORONTALO-BILUHU BARAT) Lige, Fifi Nabila; Utiarahman, Arfan; Tuloli, Mohamad Yusuf
Composite Journal Vol. 3 No. 1 (2023): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v3i1.71

Abstract

Construction project development requires careful planning, but the uncertainty that occurs in the procerss is very diverse. Inefficiencies such as schedule mismatch with the work process in the field must be minimized so that there is no significant waste of costs. Therefore, related parties need to take appropriate steps to identify and evaluate waste so that the planning time and the work process do not differ significantly, so as to reduce waste of costs and provide satisfactory results to the project owner. Thus, it is necessary to conduct research on lean construction mehod and critical chain project management scheduling to know the occurrence of waste so that anything that does not add value can be minimized or even eliminated. Based on the result of interviews, there are 73% value added activity and 27% non-value adding but necessary activity. The critical waste is waiting and unnecessary inventory. The risks that occur are incompatibility of planning designs with the field, delays in materials/tools, damage to materials/tools, work safety, traffic disturbances at the project site, low labor productivity, design change from planners, bad weather, and the COVID-19 pandemic. The estimated total project duration obtained using the Critical Chain Project Management (CCPM) method is 200 days from the initial duration of 266 days.
ALTERNATIF PENGURANGAN LIMPASAN AIR HUJAN DAN KONSERVASI AIR TANAH MENGGUNAKAN SUMUR RESAPAN (STUDI KASUS: KOMPLEKS LORONG MAESA KECAMATAN HULONTHALANGI KOTA GORONTALO) Olii, Rachma Ditha; Husnan, Rawiyah; Labdul, Barry Yusuf
Composite Journal Vol. 3 No. 1 (2023): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v3i1.85

Abstract

Sumur resapan adalah upaya untuk meningkatkan penetrasi air hujan ke dalam tanah dan mengurangi limpasan yang menyebabkan genangan ataupun banjir. Penelitian ini bertujuan untuk mengetahui besarnya nilai laju infiltrasi tanah, debit masukan sumur resapan, dan dimensi sumur resapan yang dibutuhkan di Kompleks Lorong Maesa. Lokasi penelitian berada di Kompleks Lorong Maesa. Analisis hidrologi menggunakan data hujan tahun 2011-2020 dari Stasiun Bone Alale, Boidu, dan Tumbihe. Pengujian permeabilitas menggunakan Metode Sumur Uji. Metode untuk menentukan laju infiltrasi menggunakan double ring infiltrometer dan untuk mencari infiltrasi konstan (fc) menggunakan Metode Horton. Metode Rasional digunakan untuk memperoleh debit banjir kawasan. Penentuan dimensi sumur resapan menggunakan Metode Sunjoto. Nilai laju infiltrasi konstan (fc) menggunakan metode double ring infiltrometer diperoleh 6 cm/jam, nilai koefisien permeabilitas tanah (k) adalah 5,833x10-4 cm/det. Intensitas hujan menggunakan Metode Mononobe yang dikomprasi dengan Sherman yaitu 22,33 mm/det. Nilai debit banjir kawasan sebesar 0,138 m3/det dan debit banjir satu unit rumah 8,3x10-4 m3/det. Direncanakan sumur resapan berbentuk lingkaran dengan diameter 0,8 m dan tinggi 1 m dengan Qresapan 1,32x10-3 m3/det. Pengurangan limpasan oleh sumur resapan untuk satu unit rumah sebesar 88,3% dan untuk total seluruh kawasan 47,57% sehingga debit banjir untuk satu unit rumah berkurang menjadi 1,0x10-4 m3/det dan debit banjir untuk kawasan berkurang menjadi 7,28x10-2 m3/det. Konservasi air tanah oleh sumur resapan untuk satu unit rumah yaitu 7,3x10-4 m3/det, untuk kawasan sebesar 6,6x10-2 m3/det. Biaya yang dibutuhkan untuk membuat satu unit sumur resapan berdiameter 0,8 m dengan kedalaman 1 m adalah Rp. 1.052.000 (Satu Juta Lima Puluh Dua Ribu Rupiah).

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