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RACIC : Rab Construction Research
Published by Universitas Abdurrab
ISSN : 25277073     EISSN : 26203170     DOI : https://doi.org/10.36341/racic
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
RACIC "Rab Construction Research" (ISSN 2527-7073) adalah Jurnal yang dikelola oleh Program Studi Teknik Sipil, Fakultas Teknik Universitas Abdurrab, yang terbit secara berkala dalam dua edisi per tahun.
Arjuna Subject : -
Articles 165 Documents
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PREDIKSI KAPASITAS PENAMPANG KOLOM BETON BERTULANG DENGAN VARIASI DIAMETER TULANGAN Samsul A Rahman Sidik Hasibuan; Baskoro Abdi Praja; Iin Irawati
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2401

Abstract

Reinforced concrete column design is the process of determining the dimensions of the columns and reinforcement required with the appropriate quality of concrete and steel so that they can withstand the planned load to work on the column. Unlike the beam design, which was based on the applied load, it is possible to determine the cross-sectional dimensions and reinforcement requirements directly from the design equation, and the column design process is iterative. A column generally experiences axial forces, shear forces, bending moments, and torsional moments. In this paper, cross-sections of reinforced concrete columns are modelled and analyzed using an android application that can be installed via the play store. The application offered by eigenplus named RCC Column Design version 2.1.12 was released on 17 September 2017. The last updated RCC Column Design application was on 25 March 2018. This paper aims to predict the cross-sectional capacity of reinforced concrete columns with variations in reinforcement diameter. The cross-sectional capacity of the column referred to in this paper is the axial capacity, moment capacity, and shear capacity. Furthermore, the value of the cross-sectional capacity of reinforced concrete columns with variations in the diameter of the reinforcement has been obtained. The values ​​obtained are proposed as predictions in this paper.
STABILISASI TANAH LEMPUNG DENGAN ABU TANDAN SAWIT DAN SEMEN TERHADAP TINGKAT KEPADATAN TANAH Muthia Anggraini; Virgo Trisep Haris; Alfian Saleh
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2421

Abstract

Konstruksi bangunan membutuhkan kondisi tanah yang memiliki daya dukung yang baik sehingga mampu memikul beban di atasnya. Tanah lempung dengan plastisitas tinggi yaitu tanah yang banyak mengandung butiran lempung. Sifat dari tanah lempung yang perlu diperhatikan yaitu sifat pemampatan, permeabilitas, dan kuat geser. Untuk menaikkan daya dukung tanah lempung tersebut dengan melakukan pemadatan, sehingga didapat kepadatan yang maksimum. Tanah asli dicampurkan dengan abu tandan sawit dan semen akan menaikkan nilai berat isi kering maksimum tanah lempung. Tujuan penelitian ini adalah untuk mengetahui pemadatan tanah yang dicampur dengan varaiasi persentase abu tandan sawit dan semen masing-masing 5%, 7,5%, dan 10 %. Penambahan abu tandan sawit dan semen dapat menunrunkan nilai kadar air tanah dan meningkatkan nilai berat isi kering tanah sehingga tanah menjadi lebih padat. Nilai berat isi kering terbesar di campuran 10 % abu tandan sawit dan semen yaitu 1,42 gr/cm³, dimana berat isi kering tanah asli nilainya 1,32 gr/cm³. Kesimpulannya terjadi peningkatan nilai dari berat isi kering tanah dan menurunnya nilai kadar air tanah dengan penambahan abu tandan sawit dan semen.
POTENSI PENGGUNAAN CAMPURAN SLAG NIKEL DAN FLY ASH SEBAGAI MATERIAL PERKERASAN JALAN Rifanni Wiziarti; Wiwik Rahayu
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2462

Abstract

Penggunaan kembali material daur ulang dalam skala besar untuk proyek yang berhubungan dengan geoteknik, seperti pada perkerasan jalan, akan menjadikan lebih ekonomis dan mendukung kelestarian lingkungan. Slag nikel dan fly ash adalah salah satu contoh hasil sampingan produksi dari pengolahan feronikel dan batubara. Dalam penelitian ini, campuran slag nikel dan fly ash diteliti untuk dijadikan alternatif material struktur perkerasan jalan. Penggunaan fly ash tipe F digunakan sebagai material pengisi dan stabilisasi. Pengujian laboratorium direncanakan untuk komposisi campuran 0%, 5%, 8%, 11%, 14%, 17%, dan 20% FA dalam kriteria desain berupa pengujian pemadatan (modified proctor), California Bearing Ratio (CBR), potensi pengembangan (swelling) dan permeabilitas. Hasil menunjukkan nilai CBR soaked lebih besar daripada CBR unsoaked karena pengaruh dari fly ash yang bersifat pozzolan. Maka CBR kondisi unsoaked yang digunakan sebagai CBR desain dengan nilai memenuhi standar minimum CBR lapis fondasi bawah, bahu jalan, dan timbunan pilihan. Potensi pengembangan (swelling) masih memenuhi batas nilai maksimum yaitu 0,5% (derajat ekspansi rendah). Koefisien permeabilitas hanya berkisar lebih besar dari 10-5 m/sec (permeabilitas sedang) dimana kombinasi campuran dikategorikan untuk lapis fondasi bawah dengan indeks plastisitas maksimum 10 dan tanpa adanya persyaratan permeabilitas untuk semua kategori lalu lintas.
PENGGUNAAN BEKISTING BONDEK UNTUK PERCEPATAN WAKTU PROYEK BANGUNAN BERTINGKAT 26 LANTAI Rachmi Yanita; Terry Novi AR
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2497

Abstract

Abstract Conventional formwork using multiplex material and bondek formwork are types of formwork that have their respective advantages. The choice of formwork type is determined by the project constraints of each project. For time and cost optimization, value engineering was carried out between the two formwork methods in planning the construction of the 26-storey Urban Height Residences Apartment Project with a floor area of ​​10,000 m2 in South Tangerang. Implementation of typical slab and beam structure work, divided into 2 work zones for work effectiveness. In conventional formwork, the need for formwork material is based on the cycle of formwork transfer between zones and between floors, so it is sufficient to use formwork with an area of ​​4 floors and above is carried out with conventional formwork and bonded formwork. In the time analysis, an analysis of the time requirements is made for the process of installing, dismantling and removing formwork. From the results of the analysis obtained that the conventional formwork multiplex (plywood) requires a cost of Rp. 2,168,573,650,- for a typical floor area of ​​35,974.75 m2, or Rp. 60,280,-/m2 which is 64.36% more effective than using bondek formwork. In terms of time, conventional multiplex (plywood) formwork takes 250 days to work, with a daily productivity of 143,899 m2/day, 20% longer than bondek formwork. The type of formwork used in the design stage must be in accordance with the project constraints so as to produce an optimal design. Keywords: Conventional Formwork, Bondek Formwork, Project Constraint.
IMPLEMENTASI LEAN CONSTRUCTION TOOLS PADA PROYEK PEMBANGUNAN JALAN TOL BALIKPAPAN - SAMARINDA Oryza Lhara Sari; Fitria Arwina Munawaroh; Andika A. I. Saputra; Raftonado Situmorang; Ian Isman Irfandi
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2512

Abstract

Lean contruction merupakan sebuah sistem manajemen konstruksi dengan tujuan untuk mereduksi waste (pemborosan). Jika dibandingkan dengan negara berkembang lainnya, penerapan lean construction di Indonesia masuk ke dalam kategori sangat kurang. Tujuan dilakukan penelitian yaitu mengetahui apakah metode lean construction telah diterapkan pada Proyek Pembangunan Jalan Tol Balikpapan - Samarinda. Metode penelitian yang digunakan yaitu metode analisis statistik deskriptif. Hasil yang diperoleh yaitu teknik lean construction telah diterapkan pada Proyek Pembangunan Jalan Tol Balikpapan - Samarinda, hal ini dilihat dari keseluruhan variabel memiliki nilai persentase diatas 68%, dimana sebanyak 3 variabel yaitu last planner system, 5S process, dan fail-safe for quality and safety dapat dikategorikan ke dalam kelompok selalu diterapkan, dan 3 variabel lainnya yaitu increased visualization, daily huddle meeting, dan first run study masuk ke dalam kategori sering diterapkan, tidak ada variabel yang masuk ke dalam kategori tidak diterapkan.
Perbaikan ALTERNATIF LONGSORAN DENGAN METODE PRELOADING DI JALAN LINGKAR TUBAN Reva Ayundasari Ayundasari; Laily Endah Fatmawati; Nurani Hartatik; Herry Widhiarto; Yudi D. Prasetyo; Siska Yovina Ervitasari
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2514

Abstract

Bentuk konstruksi badan jalan terdiri dari beberapa lapis perkerasan yang tiap lapisnya memiliki jenis dan ketebalan tertentu, yaitu lapisan tanah dasar (sub grade), lapis pondasi bawah (sub base), lapis pondasi atas (base) dan lapis permukaan (surface). Penelitian ini menggunakan metode Preloading, sehingga diharapkan dapat mengatasi permasalahan penurunan tanah di lapangan. Adapun data yang digunakan adalah data sekunder yakni data bor log test, klasifikasi kondisi setiap lapisan tanah, tes pemadatan tanah. Berdasarkan analisa data yang dilakukan, diperoleh kesimpulan bahwa tinggi timbunan pada saat menggunakan preloading dan tanpa menggunakan preloading adalah sama yaitu sebesar 1,50 m.
STUDI PENGUJIAN KADAR LUMPUR AGREGAT HALUS PADA PASIR DI KOTA BATAM Mahfuz Hudori; Marvin Tandedi; Aldy Tri Sentanu; Mohammad Adolf Ferdinand
Racic : Rab Construction Research Vol 7 No 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2536

Abstract

Kadar lumpur merupakan salah satu parameter yang perlu diuji sebelum agregat halus digunakan dalam konstruksi. Menurut SNI 03-1750-1990, batas kandungan lumpur pada agregat halus adalah 5%. Kadar lumpur yang tinggi dapat mengakibatkan berkurangnya pengikatan antar agregat. Hal ini mengakibatkan kekuatan beton berkurang dan kualitas beton berkurang. Penelitian ini bertujuan untuk memeriksa dan memastikan bahwa pasir yang digunakan pada konstruksi Kota Batam telah memenuhi standar kadar lumpur pada agregat halus. Data kadar lumpur dianalisis menggunakan metode statistika uji t satu sampel. Hasil analisis menunjukkan bahwa kadar lumpur pada pasir di Kota Batam lebih dari 5% sehingga pasir di Kota Batam belum sepenuhnya dapat digunakan sebagai agregat halus untuk konstruksi karena belum memenuhi batas maksimum kadar lumpur pada agregat halus.
KARAKTERISTIK SIFAT FISIS DAN MEKANIS LANDFILL SEBAGAI SUBGRADE Muthia Anggraini; Alfian Saleh; Virgo Trisep Haris
Racic : Rab Construction Research Vol 7 No 2 (2022): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i2.2792

Abstract

The nature of the subgrade plays an important role in road construction. The subgrade can be compacted embankment. The physical and mechanical properties of embankment soil are values ​​or parameters to see the quality requirements. The purpose of this study was to determine the characteristics of the embankment soil as a subgrade. The method used is laboratory testing to obtain the physical and mechanical properties of the embankment soil. Soil samples were taken from Tenayan Raya, Kulim, Pekanbaru City. The results showed that the physical properties of the soil were classified as ML, PI 6.62%, and the mechanical properties of the soil with a CBR value of 17.8%. Conclusion The physical properties of the embankment soil should not contain organic matter and high plasticity. Mechanical properties of embankment soil for CBR value > 10% based on Bina Marga 2018 Revision 2 specifications for selected embankments.
PERENCANAAN SPESIFIKASI TEKNIS RUAS JALAN PROVINSI UNGGAN (KABUPATEN SIJUNJUNG)-PAMUSIAN (KABUPATEN TANAH DATAR) Bayu Budi Irawan; Yossyafra Yossyafra; Darwizal Daoed
Racic : Rab Construction Research Vol 7 No 2 (2022): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i2.2805

Abstract

The Unggan-Pamusian road is a road that connects Sijunjung and Tanah Datar Regencies. The West Sumatra Provincial Government intends to carry out the construction of the road segment. The purpose of this research is to plan the technical specifications for provincial roads, identify traffic conditions, forecast average daily traffic and plan the pavement thickness design. The method used is the Road Geometric Design Guidelines Number 13/P/BM/2021. The results of the technical planning specifications for provincial roads are adjusted to the standards. The traffic condition of the Unggan-Pamusian road segment is classified as low traffic with a description of the early stages of local roads and can be upgraded to collector roads. Forecasting results obtained average daily traffic of 3,166 vehicles (2021) and 7,482 vehicles (2046). Type of AC pavement with a thickness of AC-WC 40 mm, AC-BC4 60 mm, AC-BC or AC-Base 75 mm, CTB3 150 mm and class A aggregate foundation 150 mm.
PENGATURAN ZONASI DI DAERAH SEMPADAN SUNGAI MANDAR, KECAMATAN TINAMBUNG KABUPATEN POLEWALI MANDAR Ali Akbar Tasrif; Rita Tahir Lopa; Farouk Maricar
Racic : Rab Construction Research Vol 7 No 2 (2022): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i2.2997

Abstract

Mandar River is one of the rivers in West Sulawesi Province which is located in Polewali Mandar Regency and comes from one of the foot of the mountain with a length of about 150 km. The use of Mandar River water, apart from being a source of air for the surrounding community, is also used as a power plant, so that the Mandar River cannot be separated from the lives of some people who live in the border areas of the Mandar River. Over time, activities in the Mandar River border area have increased, especially in the construction of residences and other buildings such as residential buildings. This study aims to identify the use of space in the Mandar River border area and provide recommendations for spatial planning by zoning the use of space in the area and reducing the impact of flooding. The method used in this research is descriptive qualitative with spatial analysis. The results of this study are the zoning arrangements for regional activities in the form of conservation areas and border areas, while the zoning of cultivation areas are river conservation areas and agricultural and plantation areas. The border area of ​​the Mandar River for structuring more arrangements is right on the edge, where the area is a flood-prone area with relocation development or river normalization.

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