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Mulyati, Ely
Universitas Bina Dharma Palembang
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ANALISIS KINERJA SIMPANG 4 TAK BERSINYAL (STUDI KASUS : SIMPANG EMPAT JL. INSPEKTUR MARZUKI KECAMATAN ILIR BARAT I KOTA PALEMBANG) Renaldi, Gilang; Mulyati, Ely
TEKNIKA: Jurnal Teknik Vol 11 No 2 (2024)
Publisher : Universitas IBA Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35449/teknika.v11i2.292

Abstract

Palembang adalah kota terbesar di provinsi Sumatera Selatan dan salah satu pusat pemerintahan yang seiring berjalannya waktu semakin banyak dan meningkatnya jumlah penduduk terutama di Jalan Inspektur Marzuki. Jalan ini merupakan salah satu tempat yang padat, mulai dari wilayah perkantoran, sekolah dan banyak komplek perumahan sehingga terjadinya peningkatan kendaraan roda dua dan roda empat yang mengakibatkan masalah kemacetan. Untuk mengetahui kinerja simpang 4 tak bersinyal dijalan Inspektur Marzuki dilakukan dengan menggunakan metode MKJI 1997. Penelitian ini mengambil data arus lalu lintas yang terdiri dari Heavy Vehicle (HV), Light Vehicle (LV), Motor Cycle (MC), dan Hambatan Samping. Jenis kendaraan dibagi berdasarkan sistem klasifikasi Bina Marga. Pengambilan data dilakukan secara serempak di tiap arus jalan pada masing-masing simpang selama 7 hari pada jam 06.00 WIB sampai dengan jam 18.00 WIB dan ditentukan hasil analisanya pada jam sibuk atau kondisi persimpangan pada puncak maksimum kendaraan. Hasil dari penelitian ini menyatakan bahwa kinerja simpang 4 tak bersinyal dijalan Inspektur Marzuki setelah di analisis menyatakan bahwa kondisi persimpangan tersebut memiliki nilai derajat kejenuhan senilai 0,876 yang mana nilai tersebut memproyeksikan di lapangan bahwa terjadinya kondisi padat merayap di lokasi tersebut sehingga kendaraan yang melintas sedikit mengalami gangguan. Penambahan traffic light di beberapa titik strategis merupakan langkah yang efektif untuk mengurai kemacetan dan meningkatkan keselamatan di jalan raya. Dengan penempatan dan pengaturan yang tepat, traffic light dapat menjadi solusi jangka panjang dalam menjaga kelancaran lalu lintas dan meningkatkan efisiensi pergerakan kendaraan di berbagai titik rawan macet. Kata Kunci : Jalan, Arus Jalan, Hambatan
ANALYSIS OF SCOUR AROUND THE FOUNDATION PILLARS OF THE LAIS RIVER PORT, PALEMBANG CITY Syarifudin, Achmad; Monica, Gita Farera; Rosyad, Farlin; Mulyati, Ely
Ensiklopedia of Journal Vol 7, No 1 (2024): Vol. 7 No. 1 Edisi 2 Oktober 2024
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v7i1.2664

Abstract

A pillar is a substructure located in the middle of the span between two abutment which also functions to carry the loads of the superstructure  and other buildings and transmit them to the foundation and distribute them to hard subgrade. Local scouring around building occurs because the local flow pattern around river buildings is a natural process that occurs in rivers duet o the influence of river morphology or the presence of water structure that block flow, for example brodge bases, brodge pillars, abutments, river cribs, etc. The presence of these water structure cdauses changes in flow characteristics such as flow speed and turbulence, giving riset o changes in sediment transport and the occurrence of scour. Research objective: to determine the scour pattern around the foundation pillars of sungai lais harbour and effective ways to control scour. Research method: experimental by collecting primary data and secondary data. Also, research was carried out through practicums using miniature rivers.the results of research obtained the magnitude by observing the flume (channel) during the running test/ stream flow and then research was carried out on the magnitude of the channel’s base elevation before it was channeled and changes in the depth of scour after it was channeled affecting the foundation pillars above. This is influenced by the speed of the water flow, the collapse rate is also not very significant. The collapse of the outer waa occured when the flow time was 10 minutes at the end of data collection. So, the factor that influences the size of the scour around the pillar is the speed of the following flow and the material deposits carried by it.  Keywords : A Pillars, Scour, Flow Speed
PENGARUH SUBSITUSI AMPAS TEBU PADA FLY ASH TERHADAP KUAT TEKAN MORTAR GEOPOLIMER Saputra, Ksatria; Mulyati, Ely; Firdaus
Jurnal Teknik Sipil : Rancang Bangun Vol. 10 No. 2 (2024): Oktober 2024
Publisher : Universitas Muhammadiyah Sorong

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

Abstract

Geopolymer mortar is an alternative material to replace Indonesian portland cement. Made from a mixture of rice husk ash and fly ash without using cement, utilizes industrial waste and is environmentally friendly. This study analyzes the effect of sugarcane bagasse substitution on mortar setting time and compressive strength of geopolymer mortar in fly ash-based mixtures. The benefits include increasing the additional value of bagasse fly ash as a mixture and reducing the use of cement material in mortar. Become a reference for other researchers. This research shows that the results of the substitution of bagasse for fly ash have an effect on the hardening time and strength of the mortar. The hardening time meets the standards for initial sett, but not for final sett. The greatest effect occurred at a percentage of 15% with an initial set hardening time of 90 minutes and a final set of 135 minutes. Mortar strength continues to increase from 7 days to 28 days at each percentage, with the highest value at the 15% percentage of 10.4 Mpa.
REHABILITAS JALAN DI M.ISA PALEMBANG Simangunsong, Yoel Febrian; Mulyati, Ely
Ensiklopedia Research and Community Service Review Vol 4, No 2 (2025): Vol. 4 No. 2 Februari 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v4i2.2936

Abstract

Roads are land transportation infrastructure that includes all parts of the road, including complementary structures and equipment, intended for traffic, located on the ground surface, above the ground surface, underground, and on or under water surfaces, excluding railroads, tramways, and cableways. The function of highways as transportation infrastructure in economic activities is to promote economic equity by serving as a connecting network. Rehabilitation is the solution to damages caused by excessive vehicle loads and frequent changes in weather and climate. Road rehabilitation involves resurfacing, restoration, and rehabilitation of existing pavement layers to extend their service life, improve performance, and enhance the durability of pavement structures. To restore the service conditions of roads, regular maintenance is essential. One type of road maintenance is road improvement, which may include upgrading pavement structures or widening roads to increase their capacity. The implementation of road rehabilitation on Jalan M. Isa is a critical effort to improve vital urban transportation infrastructure, given the high levels of damage in several sections caused by aging, traffic loads, and weather conditions. The government builds transportation infrastructure according to the needs of each region to foster regional development. This study examines whether the road rehabilitation methods applied on Jalan M. Isa comply with existing technical standards and align with the 2023 General Specifications of Bina Marga. The type of asphalt used in the rehabilitation of Jalan M. Isa in Palembang City is AC-WC (Asphalt Concrete Wearing Course), with damage assessments conducted using the PCI (Pavement Condition Index) method.Keywords: Road rehabilitation, M. Isa Palembang, Traffic density, Transportation infrastructure,PCI
PERENCANAAN PEMBUATAN PETA TATA GUNA LAHAN KECAMATAN PLAJU Alfain, M. Hifzni; Mulyati, Ely
Ensiklopedia Research and Community Service Review Vol 4, No 2 (2025): Vol. 4 No. 2 Februari 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v4i2.2933

Abstract

Integrated land-use planning is a crucial step in supporting the sustainable management of regional resources. This study aims to create a land-use map for the Plaju District, covering the villages of Bagus Kuning, Plaju Ulu, Talang Bubuk, and Plaju Darat. The topic was chosen due to the need for accurate spatial information to support development planning and decision-making in the area. The data used in this study were sourced from the Palembang City Government Geoportal, aerial imagery from Google Maps, and the 2023 statistical data for the Plaju District. The map was created using QGIS software to ensure effective and accurate geospatial data processing. The results of this study produced a land-use map reflecting the current land use in the study area, including residential areas, green spaces, and public facilities. This map is expected to serve as a basis for regional planning, disaster mitigation, and better spatial planning. In conclusion, this land-use map not only contributes to enhancing spatial understanding of the Plaju District but also serves as a vital tool for supporting data-driven spatial planning policies. The implementation of QGIS in this study highlights the potential of geospatial technology in supporting sustainable regional management.Keywords: Geospatial technology, Land use, Plaju District, QGIS, regional planning
Analisa Percepatan Dengan Metode Time Cost Trade Off Pada Proyek Pembangunan SPBI 2 × 200 Kl Sakinah, Sakinah; Mazpar, Ely; Mulyati, Ely
Sultra Civil Engineering Journal (SCiEJ) Vol 6 No 1 (2025): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v6i1.927

Abstract

The SPBI 2×200 KL construction project, initially planned to be completed in 360 days, experienced significant delays in the 21st week, with a progress deviation of -16.434%. To address this issue, the Time Cost Trade Off (TCTO) acceleration method was implemented by adding 4 hours of overtime work per day. This strategy successfully shortened the project duration from 336 days to 231 days, reducing the total project time by 37%. The acceleration efforts were focused on critical paths that influenced the project's completion. Although there was a 17.1% increase in direct costs due to overtime wages, additional labor, and extra materials, the application of TCTO effectively reduced indirect costs associated with prolonged project duration, such as administrative and operational expenses. Overall, this method proved to be effective in bringing the project back on schedule and preventing further losses due to delays.
PENGARUH PENGGUNAAN LIMBAH BETON SEBAGAI SUBSTITUSI AGREGAT KASAR TERHADAP KUAT TEKAN BETON Nusantara, Agung; Mulyati, Ely
Ensiklopedia of Journal Vol 7, No 4 (2025): Vol. 7 No. 4 Edisi 1 Juli 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v7i4.3060

Abstract

This study aims to The Effect of Using Concrete Waste as a Coarse Aggregate Substitute on Concrete Compressive Strength. To find out whether concrete waste can be used as a good coarse aggregate substitute in Fc` 26.4 MPa concrete. And To find out how much compressive strength value is produced using concrete waste. At all test ages (7, 14, and 28 days), the concrete mixture with 30% concrete waste showed a consistent increase in compressive strength compared to normal concrete. This shows that the use of concrete waste as a coarse aggregate substitute with a percentage of 30% can increase the compressive strength of Fc 26 MPa concrete. Variations in the mixture of 10% and 70%, concrete waste did not provide better compressive strength results compared to normal concrete. Even the percentages of 10% and 70% tend to reduce the compressive strength of concrete. This study shows that the use of concrete waste as a coarse aggregate substitute in Fc 26 MPa concrete provides variations in the compressive strength of concrete at the ages of 7, 14, and 28 days. Specifically, the variation of 30% waste concrete mixture resulted in an increase in the compressive strength of concrete compared to normal concrete at each test age. At the age of 7 days, the compressive strength of normal concrete was 17.12 MPa, while the compressive strength with 10% LB was 16.94 MPa, 30% LB was 17.69 MPa and 70% LB was 16.60 MPa. At the age of 14 days, the compressive strength of normal concrete was 22.79 MPa, while the compressive strength with 10% LB was 21.73 MPa, 30% LB was 23.22 MPa and 70% LB was 21.52 MPa. At the age of 28 days, the compressive strength of normal concrete was 25.78 MPa, while the compressive strength with 10% LB was 25.17 MPa, 30% LB was 26.53 MPa and 70% LB was 24.96 MPa.Keywords: Concrete, Aggregate, Compressive Strength.
ANALISIS PROKTIVITAS TENAGA KERJA PADA PEKERJAAN ATAP Mulyati, ely; Bimantara, Prans
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 10 No. 2 (2022): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v10i2.335

Abstract

Abstrak: Analisis Proktivitas Tenaga Kerja Pada Pekerjaan Atap. Tenaga kerja merupakan salah satu sumber daya yang menjadi penentu keberhasilan suatu pekerjaan dan Produktivitas adalah bagaimana menghasilkan atau meningkatkan hasil barang dan jasa setinggi mungkin dengan memanfaatkan sumber daya secara efisien. Pada penelitian ini dilakukan penyebaran kuisioner dan menggunakan perhitungan metode statistik dengan bantuan komputer program SPSS dari hasil penelitian diperoleh kesimpulan terdapat 5 indikator tenaga kerja yang mempengaruhi antara lain (Disiplin, Pengalaman, Komunikasi,Upah Kerja Dan Usia) terhadap indikator dari produktivitas antara lain (Waktu Pekerjaan, Keserasian Dengan Target, Kesesuaian Dengan Perencana, Cuaca, Kesesuaian Keahlian).dan Dari hasil penelitian dan pengolahan data terdapat nilai dari hubungan indikator tenaga kerja terhadap produktivitas jika dilihat dari tabel Interpretasi koefisien korelasi Nilai r diketahui bahwa nilai 0,643 berarti nilai hubungan antara variabel tenaga kerja terhadap produktivitas yaitu dapat dinyatakan KUAT. Berdasarkan hasil perhitungan nilai t hitung sebesar 4,338 Dari data tersebut dibandingkan dengan nilai dari t tabel sebesar = 2,052 didapat bahwa tenyata t hitung lebih besar dari t tabel atau dikonversikan dengan nilai 4,338 > 2,052 maka artinya ada hubungan yang signifikat antara tenaga kerja dan produktivitas Kata kunci: Pekerjaan Atap; Tenaga Kerja; Produktivitas Abstract: Labor Productivity Analysis on Roofing Work. Labors are the resources that determines the success of a job and Productivity is how to produce or increase the results of goods and services as high as possible by utilizing resources efficiently. The aim of this research is to find out what indicators affect labor productivity and what is the relationship of the indicators that have been obtained to labor productivity. In this study, questionnaires were distributed and statistical calculation methods were used with the help of the SPSS computer program. From the results of the study, it was concluded that there were 5 labor indicators that influenced, among others (Discipline, Experience, Communication, Wage and Age) on indicators of productivity, including (Time Occupation, Conformity with Targets, Conformity with Planners, Weather, Appropriate Skills). And From the results of research and data processing there is a value of the relationship between labor indicators and productivity when seen from the table. labor to productivity, which can be stated as STRONG, the value of the contribution of labor to productivity is 41.35% and the remaining 58.65% is determined by other variables such as (worker health, managerial, work area, assistive facilities , delays in tools and materials, large volumes worked). Based on the calculation results, the t count value is 4.338. From these data, compared with the value from t table = 2.052, it is found that t count is greater than t table or converted with a value of 4.338 > 2.052, meaning that there is a significant relationship between labor and productivity. Keyword: Roofing Work; Labors; Productivity
PEMANFAATAN LIMBAH CANGKANG REMIS SEBAGAI BAHAN SUBSTITUSI SEMEN PADA BATAKO SEGITIGA Lisiana, Rani; Mulyati, Ely
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 1 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i1.372

Abstract

Abstrak: Pemanfaatan Limbah Cangkang Remis Sebagai Bahan Subtitusi Semen Pada Batako Segitiga. Remis merupakan jenis kerang yang banyak terdapat di daerah kecamatan Tugumulyo. Penelitian ini dilakukan untuk mengetahui apakah limbah cangkang remis bisa dimanfaatkan sebagai bahan substitusi semen pada batako segitiga. Penelitian ini menggunakan studi eksperimental dengan melakukan percobaan langsung di laboratorium. Rencana adukan campuran batako segitiga ini menggunakan 6 persentase pemakaian abu cangkang remis, yaitu: 0%, 20%, 30%, 40%, 50%, dan 60%. Hasil pengujian kuat tekan rata-rata batako segitiga memiliki nilai yang berbeda. Kuat tekan rata-rata pada sampel I pada batako pejal adalah 26 kg/cm2 dan batako berlubang adalah 25 kg/cm2, sampel II pada batako pejal adalah 27 kg/cm2 dan batako berlubang adalah 25 kg/cm2, sampel III pada batako pejal adalah 20 kg/cm2 dan batako berlubang adalah 19 kg/cm2, sampel IV pada batako pejal adalah 19 kg/cm2 dan batako berlubang adalah 17 kg/cm2, sampel V pada batako pejal adalah 20 kg/cm2 dan batako berlubang adalah 18 kg/cm2, sedangkan kuat tekan batako segitiga yang terkecil adalah sampel VI pada batako pejal adalah 17 kg/cm2 dan batako berlubang adalah 15 kg/cm2 Berdasarkan hasil penelitian dapat disimpulkan bahwa abu cangkang remis layak digunakan sebagai bahan substitusi semen dengan persentase maksimal adalah 20%. Kata Kunci : Abu Cangkang Remis; Batako Segitiga Pejal; Batako Segitiga Berlubang; Kuat Tekan Abstract: Utilization Of Remis Shell Waste As A Substitutional Material For Cement In Triangle Bricks. Clam is a type of shellfish that are widely found in the Tugumulyo sub-district. This research was conducted to determine whether clam shell waste can be used as a substitute for cement in triangular blocks. This research used experimental study by doing the experiments directly in the laboratory. The plan of mixing triangular bricks mixtures used 6 percent of clam shell ash, namely: 0%, 20%, 30%, 40%, 50%, and 60%. The test results of the average compressive strength of triangular blocks have different values. The average compressive strength in the sample “I” on solid brick is 26 kg/cm2, and the hollow brick is 25 kg/cm2, the sample “II” on solid brick is 27 kg/cm2, and the hollow brick is 25 kg/cm2, the sample “III” on solid brick is 20 kg/cm2, and the hollow brick is 19 kg/cm2, the sample “IV” on solid brick is 19 kg/cm2, and the hollow brick is 17 kg/cm2, the sample “V” on solid brick is 20 kg/cm2, and the hollow brick is 18 kg/cm2, the sample “VI” on solid brick is 17 kg/cm2, and the hollow brick is 15 kg/cm2. This percentage of the clam shell ash a substitute for cement in each sample is different. As the results of the research, it can be concluded that clam shell ash is properly suitable to use as a cement substitute with a maximum percentage is 20%. Keywords : Clam Shell Ash; Triangle Solid Brick; Triangle Hollow Brick; Compressive Strength
PEMANFAATAN BAHAN LOKAL BAMBU MAYAN SEBAGAI BAHAN SUBSTITUSI ANGREGAT PADA BETON Mulyati, Ely
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 2 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i2.429

Abstract

Bamboo is a plant that can be found around us, especially in rural areas. Bamboo is an environmentally friendly building material compared to conventional building materials. In addition to being easily accessible, cheap, and lightweight, bamboo also possesses considerable strength. There have been numerous studies on the use of bamboo, but in this research, bamboo is utilized as a substitute material for coarse aggregates. The planned compressive strength is for concrete with a compressive strength of K250 (20.75MPa) with substitution proportions of 30%, 50%, and 100%, which will be compared with normal concrete. In this study, it is expected to determine the proportion of substitution of coarse aggregates in concrete using bamboo. Based on the tests conducted, ranging from testing concrete-forming materials to compressive strength tests, the compressive strength obtained for normal concrete (0%) at 28 days is 26 MPa. Meanwhile, the compressive strength for concrete with a 30% substitution proportion is 26 MPa, 50% proportion is 13 MPa, and 100% proportion is 9 MPa. Thus, it can be concluded that the greater the percentage of concrete substitution, the lower the compressive strength obtained.
Co-Authors Aang Samudra Abi Hendratno Achmad Syarifudin, Achmad Agung Nusantara Akbar, Muhammad Gumilar Akhmad Khanif Berliana Alfain, M. Hifzni Amelia, Dessy Anggi Anggraini, Anggi Anna Emilawati Ari Ramadan Armahedi, Aldi Asri Friantori, Mohammad Bayu Idul Putra Bimantara, Prans Desti Mandasari Putri Dewi, Anggi Purnama Sari Dicky, Achmad Dwi Yanti Emiliawati, Anna Ersa Utami, Wahdana Fahreza, Rego Farlin Rosyad Firdaus Gamara, M. Rizky Rewa Kiki Natalia Kurnia, Dwi Lisiana, Rani Mazpar, Ely Meilani, Nadia Mery Anggriani Mery Anggriani Monica, Gita Farera Monika Anggraini, Dina Nurhasanah Nurhasanah Pironika, Tarisa Pramudwitya, Petrus Kanisius Tegar Prawira, Wanda Yudha Renaldi, Gilang Rizki Hidayat, M. Noor Rosyad, Farlin Rusedky, Muhammad Sakinah Sakinah Saputra, Ksatria Saulawani, Athiyah Sidiq, Abdi Rachman Simangunsong, Yoel Febrian Sonia Syafei, Rahmat Johar Tegar Pramudwitya, Petrus Kanisius Widiyanto Widiyanto Wulandari, Tanti Yendri, Okma