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All Journal Jurnal F. Teknik : RESULTAN BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Creative Research Journal Jurnal Kridatama Sains dan Teknologi Jurnal ABDIMAS (Pengabdian kepada Masyarakat) UBJ DEVOSI Jurnal Rekayasa Infrastruktur Hexagon
Elma yulius
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Transportation Other

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PERBANDINGAN NILAI STABILITAS PENGGUNAAN FILLER SERBUK KULIT KERANG DENGAN ABU BATU PADA CAMPURAN BETON ASPAL Cahyadi, Rizki; Sylviana, Rika; Yulius, Elma
RESULTAN : Jurnal Kajian Teknologi Vol 15 No 2 (2015): RESULTAN
Publisher : RESULTAN : Jurnal Kajian Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.855 KB)

Abstract

Kajian ini merupakan eksperimen untuk mencari alternatif pengganti filler material abu batu sebagai campuran beton aspal yang sesuai dengan spesifikasi teknis yang sudah mulai sulit didapat karena kurang tersediannya material abu batu (material konvensional) yang ada dipasaran khususnya di daerah pesisir pantai. Dalam hal ini memanfaatkan serbuk kulit kerang dara (Anadara granosa) sebagai material filler pengganti/alternatif untuk campuran beton aspal. Oleh karena itu diharapkan material dimaksud dapat mengganti maupun meningkatkan nilai stabilitas pada suatu campuran beton aspal. Metode penelitian ini melakukan uji material di laboratorium dengan variasi filler serbuk kulit kerang (4%, 6% dan 8%). Setelah dilakukan pengujian terhadap material rancangan campuran kadar aspal optimum didapat sebesar 5,5%. Kemudian dilakukan uji Marshall untuk mendapatkan nilai stabilitas campuran. Hasil penelitian menunjukan bahwa penggunaan filler 4% memiliki nilai stabilitas 1313,79 kg (serbuk kulit kerang), dan 1522,30 kg (batu abu). Untuk penggunaan filler serbuk kulit kerang 6% dan 8% mempunyai nilai stabilitas sebesar 1616,21 kg dan 1688,56 kg. Dengan demikian nilai stabilitas penggunaan filler serbuk kulit kerang secara teknis dapat dipertimbangkan untuk diterapkan pada lapisan permukaan jalan sebagai bahan material filler pengganti/alternatif.
Penilaian Kuat Tekan Beton pada Struktur Mushola Nurus Sa’ada Tangerang Darma , Eko; Gunarti, Anita Setyowati Srie; Ekawati , Dian; Ekawati , Inna; Nuryati, Sri; Yulius, Elma; Paryati, Ninik; Prihesnanto, Fajar
Jurnal Pengabdian kepada Masyarakat UBJ Vol. 4 No. 2 (2021): Juni 2021
Publisher : Lembaga Penelitian Pengabdian kepada Masyarakat dan Publikasi Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (840.294 KB) | DOI: 10.31599/jabdimas.v4i2.589

Abstract

Abstract This activity aims to provide services and information to the manager of the Nuurus Sa'ada mosque in assessing the compressive strength of the concrete at the renovation of the Nurus Sa'ada Tangerang mosque as a quality control for the building being renovated. The method of activity is to do the Hammer test at several points in the Mushola area such as the floor plate and column structures. This activity involved lecturers in Universitas Islam 45, Faculty of Engineering, Universitas Islam 45 Civil Engineering laboratory assistants, and the manager of the Nurus Sa'ada mosque, as well as renovation implementers. Key words: Hammer Test, Mushola Renovation, Compressive Strength, Mosque Abstrak Kegiatan ini bertujuan untuk memberikan pelayanan dan informasi kepada pengelola mushola Nuurus Sa’ada untuk menilai kuat tekan beton pada renovasi mushola Nurus Sa’ada Tangerang sebagai kontrol kualitas bangunan yang sedang direnovasi. Metode kegiatan yaitu dengan melakukan pengujian Hammer test di beberapa titik area Mushola seperti pada struktur plat lantai dan kolom. Kegiatan ini melibatkan para dosen di lingkungan Fakultas Teknik Universitas Islam 45, laboran Teknik Sipil Universitas Islam 45, dan pengelola Mushola Nurus Sa’ada, serta pelaksana renovasi. Kata kunci: Hammer Test, Renovasi Mushola, Kuat Tekan, Beton
PENGEMBANGAN PERAN PEMBERDAYAAN MASYARAKAT BERBABIS KOMUNITAS Hasad, Andi; Yulius, Elma
DEVOSI Vol 1 No 2 (2020): Devosi Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/devosi.v1i2.2506

Abstract

Economic improvement and development, of course, require the role of humans who drive the economy. Superior resources will improve the regional economy. In increasing the quality of superior human resources, it is necessary to develop through training in the form of development. The development program is expected to improve people's lives. Therefore, at a more operational level, development through the community empowerment process generally uses a community-based development approach. The results of the research that has been carried out by the PPM FT UNISMA Bekasi Team Activities for the 2018 period are expected to be a pioneer in the implementation of PPM activities as a form of partnership between FT UNISMA Bekasi and the Village / Kelurahan Government of Harapan Jaya and Mustika Jaya, Bekasi City. Therefore, it is hoped that it can become the basis for subsequent programs, especially for improving the quality of development in these two locations
DAYA TAMPUNG DRAINASE DAN KOLAM RETENSI PT. HITACHI CONSTRUCTION MACHINERY INDONESIA Irma Sri Rahayu; Anita Setyowati Srie GunartI; Elma Yulius
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 5 No 2 (2017): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2017)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v5i2.158

Abstract

Pabrik PT. Hitachi Construction Machinery Indonesia telah mengalami banjir hampir setiap tahun. Banjir yang terjadi pabrik PT. Hitachi Construction Machinery Indonesia disebabkan karena area pabrik memiliki elevasi yang lebih rendah dibandingkan area sekitar. Menyadari bahwa lahan resapan di sekitar area pabrik semakin berkurang sehingga kemungkinan jumlah debit banjir bertambah semakin membahayakan area pabrik maka perlu dilakukan analisa kapasitas daya tampung sistem drainase yang ada dengan perkiraan debit banjir rencana. Dilakukan perhitungan kapasitas dari sistem drainase existing dan kapasitas dari sistem drainase yang baru. Data curah hujan yang digunakan adalah data curah hujan maksimum tahunan. Metode analisis curah hujan menggunakan metode gumbel. Perhitungan debit rencana menggunakan metode rasional. Kemudian dilakukan perhitungan kapasitas saluran drainase existing dan redesign untuk saluran-saluran juga kolam yang kapasitasnya tidak memenuhi. Kapasitas sistem drainase sesuai dengan debit rencana. Sesuai hasil penelitian debit existing sebesar 1,185 m³/s mampu menampung hingga debit rencana periode ulang 100 tahun sebesar 0,54 m³/s. Beberapa saluran sekunder harus dimodifikasi dimensinya agar tidak terjadi genangan di area yang memiliki elevasi yang rendah yaitu pada ditch 14, ditch 15 dan ditch 34. Kolam retensi existing tidak dapat menampung debit banjir maka perlu dibuatkan kolam retensi yang baru. Pada periode ulang 100 tahun volume yang tidak tertampung sebesar 45.148,27 m³ dan membutuhkan ground water tank dengan luas permukaan 10.085,93 m² dengan tinggi 4,48 m.
Evaluasi Pemberian Air Irigasi Saluran Sekunder Srengseng Hilir dari Bendung Tetap Cikarang Bekasi Laut Fahmi Fathul Bahri; Elma Yulius; Anita Setyowati Srie Gunarti
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 7 No 1 (2019): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Januari 2019)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v7i1.1596

Abstract

Cikarang Bekasi Laut (CBL) is a fixed-dam river-flow that flows through the building for upstream srengseng channel. Srengseng Hilir Secondary-Channel has 32 buildings for watering the rice fields in the Sukatani sub-district. The problem happened in the distribution of water when there is a loss of irrigation water due to infiltration of water into the soil where the soil is saturated. This causes a shortage of debit for field irrigation due to water loss in the secondary channel. The method used in Water Supply Evaluation of Irrigation Cikarang Bekasi Laut (CBL) for the Secondary Channel Srengseng Hilir D.I. Jatiluhur are the maximum discharge data, minimum discharge, and average discharge of the Fixed Cikarang Bekasi Laut (CBL) Dam in 5 year-period and calculating water requirements and water availability in D.I. Jatiluhur. Result showed that the P1 channel has an irrigation area of 105 ha and a channel length of 1906 m with an actual discharge of 2714 liters/sec and has irrigation efficiency of 5.71%. Channel P2 has an irrigation area of 106 ha and channel length of 1006 m with actual discharge of 1560 liters/sec and has irrigation efficiency of 6.11%. P3 channel has an irrigation area of 137 ha and 894 m channel length with an actual discharge of 175 liters/second and has irrigation efficiency of8.41%. Channel P4 has an irrigation area of 50 ha and a channel length of 951 m with an actualdischarge of 180 liters/second and has irrigation efficiency of 21.10%. Channel P5 has an irrigationarea of 71 ha and a channel length of 835 m with an actual discharge of 274 litters/sec and has irrigationefficiency of 37.97%. Channel P6 has an irrigation area of 74 ha and a channel length of 775 m with anactual discharge of 411 liters/sec and has irrigation efficiency of 63.79%.
Faktor Keterlambatan Pekerjaan Struktur Gedung terhadap Biaya Pelaksanaan pada Proyek Pembangunan Hotel di Bekasi Dian Dwi Putra; Ninik Paryati; Elma Yulius
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 7 No 2 (2019): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2019)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v7i2.1752

Abstract

Nowadays, delays in project often occur and cause various losses both for service providers and users. For the contractors, delays create the project cost overruns due to project overtime and can decrease contractor credibility in the future. This study aims to analyze a project delay by minimizing the work delays earlier. The analysis of a hotel building planning regarding the cost and time delays is done qualitatively by distributing questionnaires to the contractors and processing the responses using the SPSS software. The results of the S curve analysis and 30 factors that caused the project delay were identified and indicated that there was a delay value of 1.26% with five variables that most contributed to the delay in the construction project at PT. Wijaya Kusuma Contractors, i.e. reworking due to construction errors, low coordination between contractors and stakeholders, late material delivery, and equipment shortages.
Optimasi Sistem Tata Air pada Daerah Irigasi Rawa (Food Estate) Dadahup Kabupaten Kapuas Provinsi Kalimantan Tengah Rawiyana Galih Anfasa; Elma Yulius; Sri Nuryati; Eko Darma; Anita Setyowati Srie Gunarti; Fajar Prihesnanto
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 11 No 1 (2023): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Januari 2023)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v11i1.5680

Abstract

The Swamp Irrigation Area (DIR) of Dadahup District is a former Peat Land Development (PLG) with an area of around 21,226 Ha. The water management system at DIR Dadahup utilizes changes in sea tides as a source of water to the land and drainage to drain water out of the land. However, in its implementation, DIR Dadahup experienced several problems such as flooding during the rainy season and experiencing drought during the dry season. These conditions indicate the need for land management and water management systems to overcome existing problems. The purpose of this study was to optimize the water management system for irrigation by optimizing the functions and benefits of swamp land in Dadahup, Kapuas Regency, Central Kalimantan Province. Optimization of the water system is carried out by modeling using the HEC-RAS program. Flow modeling with HEC-RAS in irrigation canals can be simulated into two scenarios, namely scenarios using gates and scenarios with doors and pumps for the rainy and dry seasons. Based on the results of the modeling analysis that has been carried out, the surface elevation during the dry season is in the range of +0.06 ms/d + 0.77 m, which is below the average land elevation (+0.8 m MSL). experience drought because the water in the canals cannot irrigate the land. The water level during the rainy season is in the range of +0.82 ms/d +1.53 m, which is above the average land elevation. It can be concluded that irrigation canals cannot accommodate the overflow of water that occurs at the planned discharge so that the land is flooded. The scenario model is suitable for the Dadahup DIR land use, namely with the door and pump scenario, the water level elevation for the dry season and the rainy season can reach the target of +1.0 m, then the water level elevation for the rainy season can also reach the target of +0, 7m.
EVALUASI PENGGUNAAN BAMBU SEBAGAI TULANGAN PADA STRUKTUR PERKERASAN KAKU (RIGID PAVEMENT) JALAN RAYA Darma, Eko; Gunarti, Anita Setyowati Srie; Nuryati, Sri; Yulius, Elma; Paryati, Ninik
CREATIVE RESEARCH JOURNAL Vol 3 No 01 (2017): Creative Research Journal
Publisher : Badan Penelitian dan Pengembangan Daerah Provinsi Jawa Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34147/crj.v3i01.60

Abstract

Bambu mempunyai sifat mekanik yang baik karena hampir menyerupai sifat mekanik baja. Bambu dapat digunakan pada konstruksi bangunan sipil sebagai material alternatif pengganti baja seperti perkerasan kaku jalan raya (rigid pavement). Pada rigid pavement baja digunakan sebagai tulangan yang berfungsi untuk menahan retak susut akibat suhu dan menambah kapasitas beban jalan. Penelitian ini menggunakan bambu pada rigid pavement. Spesimen yang dibuat adalah meshing tulangan bambu dan baja dengan panjang 5 m dan lebar 3,5 m, diameter 12 mm dan tulangan dipasang pada jarak setiap 100 mm. Meshing tersebut masingmasing dipasang pada tiap segmen jalan yang berukuran panjangxlebarx tinggi yaitu 3,5m x 5m x 0,3m pada kedalaman 20 cm dari permukaan jalan. Uji dilakukan dengan menggunakan beban kendaraan yang divariasikan mulai dari 1000 Kg sampai dengan 14000 Kg dan diamati responnya seperti defleksi, regangan, tegangan. Defleksi terbesar pada perkerasan rigid pavement tulangan bambu adalah 0,6 mm pada beban 9323 Kg. Tegangan maksimum yang dihasilkan pada tulangan baja memanjang dan melintang adalah 1062,6 Kg/cm2 dan 686,7Kg/cm2 dengan nilai E baja 2100000Kg/cm2 , sedangkan pada bambu tegangan terbesar yang dihasilkan adalah 118,62Kg/ cm2 dan 86,87Kg/ cm2 dengan nilai E bambu 313810Kg/cm2 pada kondisi ini tegangan yang terjadi masih dalam batas elastis. Hasil penelitian menunjukkan bambu layak dipakai sebagai tulangan pada rigid pavement
Analisis Hasil Kuat Tekan Beton Normal Terhadap Mix Design Kuat Tekan Beton Rencana Paryati, Ninik; Nuryati, Sri; Yulius, Elma; Agussalim, Anita Mardiana
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1244

Abstract

Concrete Mix Design is the design of concrete using concrete constituent materials consisting of fine aggregate (sand), coarse aggregate (gravel), cement, water with added or not added ingredients, with the aim of obtaining the compressive strength of the planned concrete. One indicator of good concrete quality can be seen from the results of compressive strength testing, where the compressive strength of the resulting concrete must not be lower than the compressive strength of the planned concrete in the mix design. Mix design work must be carried out carefully and carefully because when determining the ratio and proportion of the concrete mixture you must pay attention to good concrete standards and meet the requirements, including compressive strength, workability (ease of work) and durability (concrete durability). The aim of this research is to find out what factors influence the compressive strength of normal concrete to be lower than the compressive strength of the planned concrete in the mix design, and to find out the difference between the compressive strength of the resulting normal concrete and the compressive strength of the planned concrete. The large number of concrete compressive strength results that do not match the strength of the mix design plan in many studies of Civil Engineering students at Islamic University 45 Bekasi is the basis for the need to carry out analysis so that the cause of the error can be identified, starting from filling in the mix design form, determining the ratio from the graph, the proportion of the mixture of the constituent materials. concrete, as well as the ratio of weight or volume of concrete used. The results of this research show that the compressive strength planned in the mix design was 20 Mpa, while the average compressive strength produced with a W/C of 0.59 was 17.5 Mpa, which decreased by 12.5%, while the average compressive strength produced with a W/C of 0.6 amounting to 22,667 Mpa, an increase of 13.3% from the design compressive strength, possibly because the water content is greater so it is easier to mold, so the concrete surface is flatter and the resulting compressive strength is greater. W/C is the ratio or comparison of the weight of water to the weight of cement and cementitious additives which are generally added to high quality concrete mixtures. The conclusion is that the factors that influence the compressive strength of normal concrete to be lower than the compressive strength of the planned concrete in the mix design are sand with a fine modulus of 3.0635, gravel with a fine modulus of 6.72. The average concrete compressive strength for W/C 0.59 is 17.5Mpa and the average concrete compressive strength for W/C 0.60 is 22,667 Mpa, so the difference between the two average compressive strengths is 5.2 Mpa, where with W/C 0.60 The resulting compressive strength of the concrete is better.
Analisis Debit Aliran Sungai pada Kali Sadang Cibitung Kabupaten Bekasi Falah, Fazrul; Yulius, Elma; Nuryati, Sri; Paryati, Ninik; Prihesnanto, Fajar; Darma, Eko; Gunarti, Anita Setyowati Srie
Jurnal Kridatama Sains dan Teknologi Vol 7 No 01 (2025): Jurnal Kridatama Sains dan Teknologi
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v7i01.1599

Abstract

The Sadang River is a primary channel in Cibitung Subdistrict, Bekasi Regency, which functions to channel water from several secondary channels, including those in Wanajaya Village and Wanasari Village. The existing conditions show that the Sadang River is prone to overflowing during the rainy season and is unable to optimally support the irrigation needs of the surrounding agricultural land. Therefore, a redesign of the channel system is necessary, including increasing the river's storage capacity through channel dimension improvements based on peak flow rates derived from hydrological analysis, as well as integrated watershed management efforts. The objective of this study is to analyse the river flow discharge in the Sadang River, which is divided into four segments, and to address the river flow discharge. The research method used in this study is a quantitative method with a hydrological and hydraulic analysis approach. The hydrological analysis process was carried out by determining the average rainfall and analysing the flood discharge using the Nakayasu Synthetic Unit Hydrograph (HSS) method. Subsequently, measurements of the existing channel dimensions were taken, spatial analysis was conducted using ArcMap 10.8 software, and the channel dimensions were re-planned based on the planned peak discharge results. The research results show that the existing flow rate of the Sadang River is 954.37 m3/sec, and the analysis of the peak flow rate of the Sadang River with a 10-year return period is 6107.47 m3/sec and a 25-year return period is 7513.01 m3/sec, with the same peak time of 2 hours. It is necessary to plan with a rectangular channel, the dimensions of the channel base width (b) = 28.7m and channel height (h) = 10m because the river channel is unable to accommodate the flow of flood discharge.
Co-Authors A.A. Ketut Agung Cahyawan W Agussalim, Anita Mardiana Andi Hasad Anita Setyowati Srie Gunarti Bahri, Fahmi Fathul Basuki Hidayat Budi Rahmawati, Budi Budiana, Unang Darma , Eko Dian Dwi Putra Ekawati , Dian Ekawati , Inna Eko Darma Fahmi Fathul Bahri Fajar Prihesnanto Fajar Prihesnanto, Fajar Falah, Fazrul Fitroh Fauzi Ridwan Irma Sri Rahayu Jaelani, Jenal Luky Adrianto Luwardi, Luwardi Mustofa, Yogi Arif Ninik Paryati Oktavianti Oktavianti Permana, Dede Indah Putra, Dian Dwi Putra, Fahri Alif Rahayu, Irma Sri Rawiyana Galih Anfasa Rika Sylviana Rizki Cahyadi, Rizki Sri Nuryati Sri Nuryati Subari Subari Taufan, Acep Ali