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All Journal BAREKENG: Jurnal Ilmu Matematika dan Terapan Rang Teknik Journal Jurnal Aplikasi Teknik Sipil JISTech (Journal of Islamic Science and Technology) International Journal of Engineering, Technology and Natural Sciences (IJETS) Construction and Material Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) Majalah Ilmiah UPI YPTK Jurnal ABDI PAUD Civil Engineering Collaboration Jurnal Abdimas ADPI Sains dan Teknologi Jurnal Rivet: Riset dan Invensi Teknologi Jurnal Komtekinfo Jurnal Teknologi Jurnal Bangunan: Konstruksi & Desain Konsienti: Community Services Journal ANDIL Mulawarman Journal of Community Engagement Jurnal Teknik dan teknologi tepat guna
Imani, Rafki
Universitas Putra Indonesia “YPTK” Padang
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Journal : Construction and Material Journal

 1 
EFFECT OF SHEAR WALL ON BUILDING STRUCTURE RESPONS Boy, Wendy; Imani, Rafki; Jaya, Romi
Construction and Material Journal Vol 1, No 2 (2019): Construction and Material Journal Vol. 1 No. 2 Juli 2019
Publisher : Politeknik Negeri Jakarta

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Abstract

Cibubur is an area in the earthquake zone. The intensity of the earthquake increases every year; therefore, this must be watched out because it will cause the existing buildings to be short-lived. To deal with these problems, various ways are carried out such as making building stiffeners in the form of a shear wall. This study aims to determine the position of an efficient shear wall. The method for analyzing this shear wall was first modeled. The shear wall laying model was divided into four. With the four models, it would be able to choose which model was efficient to reduce the earthquake that occured. Analysis used ETABS software on each model, and output in the form of drift and base shear. These results will become a reference for effective model selection. Based on the results of drift and base shear in the direction of X and Y direction, of the four shear wall placement models of Tower B Trans Park and Trans Studio Cibubur, the most efficient in resisting earthquake loads is the original model. With a save value of direction X is 926.62 mm, and Y is 931.22 mm. The value of the base shear on direction X is 4691.71 tons, and Y is 4736.57 tons.Keywords: Base shear, Drift, Earthquake; Shear wall
PENGARUH PENAMBAHAN LIMBAH GIPSUM TERHADAP KUAT TEKAN BETON Imani, Rafki; Purba, Widiawati; Nainggolan, Rainaldi S
Construction and Material Journal Vol 2, No 1 (2020): CONSTRUCTION AND MATERIAL JOURNAL VOL. 2 NO. 1 MARET 2020
Publisher : Politeknik Negeri Jakarta

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Abstract

AbstractConcrete is composed of three main constituent materials, namely cement, aggregate and water. The development of concrete technology in the trial of adding a mixture of materials continues to be done to achieve the desired strength and quality. In this experiment, the addition of gypsum waste was used as a concrete mixture to determine its effect on the compressive strength of concrete. The variation in the percentage of the addition of gypsum waste is 5%, 10%, and 15% with the age of treatment observed at 14 days and 28 days. The results showed that the normal compressive strength value at 14 days was 186.87 kg/cm2, while with the addition of gypsum waste mixture the concrete compressive strength at 5%, 10% and 15% were obtained 178.45 kg respectively /cm2, 101, 01 kg/cm2, 70.71 kg/cm2. Meanwhile the compressive strength value of normal concrete at 28 days is 164.44 kg/cm2, and the compressive strength value of concrete after mixed with gypsum waste at 28 days is obtained 157.04 kg/cm2, 88.89 kg/cm2, 62.22 kg/cm2. Based on the results it can be concluded that the addition of gypsum waste as a concrete mixture material can reduce the compressive strength values of normal concrete.Keywords : Concrete, compressive strength, and gypsum waste.AbstrakBahan beton terdiri dari semen, pasir, kerikil dan air. Perkembangan teknologi beton dalam uji coba penambahan bahan campuran terus dilakukan untuk mendapatkan kekuatan dan mutu beton yang diinginkan. Dalam penelitian ini, penambahan limbah gipsum dimaksudkan sebagai campuran beton untuk melihat pengaruhnya pada nilai kuat tekan beton. Variasi persentase penambahan limbah gipsum ini adalah sebesar 5%, 10%, dan 15% dengan umur perawatan diamati pada umur 14 hari dan 28 hari. Hasil penelitian menunjukkan bahwa nilai kuat tekan beton normal pada umur 14 hari diperoleh sebesar 186,87 kg/cm2, sementara dengan penambahan campuran limbah gipsum nilai kuat tekan beton pada persentase 5%, 10% dan 15% secara berurutan diperoleh sebesar 178,45 kg/cm2, 101, 01 kg/cm2, 70,71 kg/cm2. Sementara nilai kuat tekan beton normal pada umur 28 hari adalah sebesar 164,44 kg/cm2, dan nilai kuat tekan beton setelah dicampur limbah gipsum pada umur 28 hari secara berurutan diperoleh sebesar 157,04 kg/cm2, 88,89 kg/cm2, 62,22 kg/cm2. Hasil penelitian menyimpulkan bahwa penambahan limbah gipsum sebagai bahan campuran beton dapat mengurangi nilai kuat tekan beton dibandingkan dengan kuat tekan beton normal. Kata kunci : Beton, kuat tekan dan limbah gipsum.
ASESMEN, PERKUATAN DAN PERBAIKAN BANGUNAN NON-ENGINEERED PERUMAHAN MEKAR MELATI KELURAHAN LUBUK MINTURUN KOTA PADANG PASCAGEMPA 2009 Imani, Rafki I; Anita, Sofia; Laurency, Sonya Ostha; Rozi, Fakhru
Construction and Material Journal Vol 2, No 1 (2020): CONSTRUCTION AND MATERIAL JOURNAL VOL. 2 NO. 1 MARET 2020
Publisher : Politeknik Negeri Jakarta

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Abstract

AbstractThe West Sumatra Earthquake on September 30, 2009, which also hit Padang City, caused most of the buildings to be severely and slightly damaged. This paper discusses the types of damage, repairs and reinforcement of residential houses in Mekar Melati Housing, Lubuk Minturun Sub-District, Padang City, West Sumatra. Data were collected using direct survey and assessment on both houses that have been severely damaged or slightly damaged. After the 2009 earthquake, the residential houses in the Mekar Melati housing complex in Lubuk Minturun, generally suffered severe damage and slight damage. The reason is that the building there is included in the category of very simple houses. Building materials used without slof, let alone walls that only use hollowbrick material, of which if the material is not plastered it will become brittle, resulting in the building easily collapsing.Keywords: Damage, earthquake, residential houses, repairs and reinforcement.AbstrakGempa Sumatera Barat pada 30 September 2009 yang turut melanda Kota Padang telah mengakibatkan sebagian besar bangunan mengalami rusak berat dan ringan. Makalah ini membahas jenis kerusakan, perbaikan dan perkuatan bangunan rumah warga di Perumahan Mekar Melati Kelurahan Lubuk Minturun Kota Padang, Sumatera Barat. Pengambilan data dilakukan dengan survei dan asesmen secara langsung, baik rumah yang mengalami rusak berat maupun rusak ringan. Pascagempa 2009 bangunan rumah warga di perumahan Mekar Melati Kelurahan Lubuk Minturun, umumnya banyak mengalami rusak berat dan juga rusak ringan. Penyebabnya adalah karena bangunan di sana termasuk kategori rumah yang sangat sederhana (RSS). Material bangunan yang digunakan tidak memakai slof, apalagi dinding yang hanya menggunakan  bahan hollowbrick, dimana bahan tersebut jika tidak diplaster maka akan menjadi rapuh sehingga mengakibatkan bangunan mudah runtuh.Kata kunci : Kerusakan, gempa bumi, perumahan, perbaikan dan perkuatan.
EFFECT OF SHEAR WALL ON BUILDING STRUCTURE RESPONS Wendy Boy; Rafki Imani; Romi Jaya
Construction and Material Journal Vol. 1 No. 2 (2019): Construction and Material Journal Vol. 1 No. 2 Juli 2019
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v1i2.1477

Abstract

Cibubur is an area in the earthquake zone. The intensity of the earthquake increases every year; therefore, this must be watched out because it will cause the existing buildings to be short-lived. To deal with these problems, various ways are carried out such as making building stiffeners in the form of a shear wall. This study aims to determine the position of an efficient shear wall. The method for analyzing this shear wall was first modeled. The shear wall laying model was divided into four. With the four models, it would be able to choose which model was efficient to reduce the earthquake that occured. Analysis used ETABS software on each model, and output in the form of drift and base shear. These results will become a reference for effective model selection. Based on the results of drift and base shear in the direction of X and Y direction, of the four shear wall placement models of Tower B Trans Park and Trans Studio Cibubur, the most efficient in resisting earthquake loads is the original model. With a save value of direction X is 926.62 mm, and Y is 931.22 mm. The value of the base shear on direction X is 4691.71 tons, and Y is 4736.57 tons.Keywords: Base shear, Drift, Earthquake; Shear wall
PENGARUH PENAMBAHAN LIMBAH GIPSUM TERHADAP KUAT TEKAN BETON Rafki Imani; Widiawati Purba; Rainaldi S Nainggolan
Construction and Material Journal Vol. 2 No. 1 (2020): Construction and Material Journal Vol. 2 No. 1 Maret 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i1.2752

Abstract

Concrete is composed of three main constituent materials, namely cement, aggregate and water. The development of concrete technology in the trial of adding a mixture of materials continues to be done to achieve the desired strength and quality. In this experiment, the addition of gypsum waste was used as a concrete mixture to determine its effect on the compressive strength of concrete. The variation in the percentage of the addition of gypsum waste is 5%, 10%, and 15% with the age of treatment observed at 14 days and 28 days. The results showed that the normal compressive strength value at 14 days was 186.87 kg/cm2, while with the addition of gypsum waste mixture the concrete compressive strength at 5%, 10% and 15% were obtained 178.45 kg respectively /cm2, 101, 01 kg/cm2, 70.71 kg/cm2. Meanwhile the compressive strength value of normal concrete at 28 days is 164.44 kg/cm2, and the compressive strength value of concrete after mixed with gypsum waste at 28 days is obtained 157.04 kg/cm2, 88.89 kg/cm2, 62.22 kg/cm2. Based on the results it can be concluded that the addition of gypsum waste as a concrete mixture material can reduce the compressive strength values of normal concrete. Keywords : Concrete, Compressive Strength, and Gypsum Waste.  
ASESMEN, PERKUATAN DAN PERBAIKAN BANGUNAN NON-ENGINEERED PERUMAHAN MEKAR MELATI KELURAHAN LUBUK MINTURUN KOTA PADANG PASCAGEMPA 2009 Rafki I Imani; Sofia Anita; Sonya Ostha Laurency; Fakhru Rozi
Construction and Material Journal Vol. 2 No. 1 (2020): Construction and Material Journal Vol. 2 No. 1 Maret 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i1.2754

Abstract

The West Sumatra Earthquake on September 30, 2009, which also hit Padang City, caused most of the buildings to be severely and slightly damaged. This paper discusses the types of damage, repairs and reinforcement of residential houses in Mekar Melati Housing, Lubuk Minturun Sub-District, Padang City, West Sumatra. Data were collected using direct survey and assessment on both houses that have been severely damaged or slightly damaged. After the 2009 earthquake, the residential houses in the Mekar Melati housing complex in Lubuk Minturun, generally suffered severe damage and slight damage. The reason is that the building there is included in the category of very simple houses. Building materials used without slof, let alone walls that only use hollowbrick material, of which if the material is not plastered it will become brittle, resulting in the building easily collapsing. Keywords: Damage, Earthquake, Residential Houses, Repairs and Reinforcement.
LITERASI KESIAPSIAGAAN GEMPA DI SUMATERA BARAT: SEBUAH REVIEW Rita Nasmirayanti; Rafki Imani; Meldia Fitri; Jihan Melasari; Maiyozzi Chairi; Nadra Arsyad
Construction and Material Journal Vol. 4 No. 1 (2022): Construction and Material Journal Vol. 4 No. 1 Maret 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i1.4527

Abstract

The West Sumatra earthquake on September 30, 2009, has left a long sorrow for the families of the victims. The number of children who died at “Bimbel” center at that time was a proof of how vulnerable and at-risk children were to the threat of earthquakes. Learning from the past earthquakes, the local government and policy makers of West Sumatra Province have taken steps to take preventive measures, especially since the 2009 earthquake. Follow-up efforts such as reconstruction and rehabilitation have also been carried out well. However, these efforts will be meaningless if they are carried out sporadically and unsustainably. Efforts that have been carried out and have developed so far must be carried out from upstream to downstream in a more focused manner, starting from children to adults. Community capacity building, both through systematic socialization and sustainable disaster education, must continue to be carried out in every condition where there is no potential disaster in a disaster-prone area. The Law of the Republic of Indonesia No. 24 of 2007 concerning disasters, it is states that one of the groups of people who are vulnerable to disasters is the age group of children. Earthquake disaster education and knowledge need to be introduced early on. This study aims at evaluating the importance of literacy and disaster education for children. The method used is an evaluation method and a review of several previous studies, then summarize the results obtained from some of the previous studies. The results of the study stated that disaster literacy for children is important to do from an early age, so that they have more readiness and capacity to face disasters in the future. Keywords: Disaster Literacy, Disaster Education, Earthquake.
KUAT TEKAN BETON DENGAN SUBSTITUSI PARSIAL SISA BUBUT BESI SEBAGAI AGREGAT HALUS Anggara Yunanda; Rafki Imani; Rita Nasmirayanti
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4710

Abstract

One of the concrete technologies developed to obtain good compressive strength of concrete is additional material for iron lathe waste obtained from the residue of the iron turning process. This study aims to determine the effect of iron lathe waste as a fine aggregate additive on the compressive strength of concrete. The compressive strength test of concrete was carried out based on The SNI standard 1974:2011. The sample making of the specimens was carried out by varying 0%, 1.5% and 2.5% of iron lathe waste from the weight of fine aggregate in a concrete mixture with a concrete compressive strength of 29.05 MPa. Concrete samples were tested at the age of 7 days, 14 days, and 21 days. The test results show that the maximum compressive strength of concrete is achieved by normal concrete (0%) which is 28.96 MPa at the age of 21 days of concrete. While the value of the compressive strength of concrete after being given a mixture of iron lathe waste decreased. The optimum concrete compressive strength with the addition of iron lathe waste was obtained at 24.63 MPa with a mixture of 1.5% at the age of 21 days of concrete. The decrease in the compressive strength of concrete due to the addition of iron lathe waste. It occurs because of the air trapped in the concrete, causing the concrete to be hollow and not solid, so that the compressive strength of the concrete decreases. Keywords: Fine aggregate, Strength of concrete, Waste iron, Concrete technology.
EVALUASI KELAYAKAN STRUKTURAL DAN KEPADATAN LAPISAN AC-BC MENGGUNAKAN METODE CORE DRILL Gusrinaldi, Ilham; Imani, Rafki; Alfa, Akbar
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7938

Abstract

The Asphalt Concrete-Binder Course (AC-BC) layer has an important structural function as a binder between the base layer and the wearing layer. This study aims to evaluate the feasibility of the AC-BC layer in terms of thickness and density using the core drill method on the Padang-Pekanbaru Toll Road Section 2 project. Tests were conducted on field and laboratory samples, then the results were compared with the 2018 General Bina Marga Specifications Revision 2. The average thickness of most samples met the minimum standard of 6.0 cm, but there were several points with a thickness <6.0 cm that required evaluation. Field density values ​​ranged from 2.29-2.34 gr/cm³, and degree density between 97.19–99.47%. Most test points met the standard ≥98%, but there were points with values ​​below the standard indicating potential imperfections in the compaction process. Analysis showed that differences in density values ​​were influenced by the mixture temperature during spreading, the delay time between production and spreading, and variations in field implementation. These findings demonstrate the importance of temperature and time control to ensure the quality of AC-BC layer construction. The results of this study can serve as a technical reference for evaluating and improving fieldwork quality in pavement construction projects.
Co-Authors Ade Pratama Adelino, Muhammad Ilham Afif Okriwa Afrilda Sari Afrilda Sari Afrilda Sari Alfa, Akbar Anggara Yunanda Ariani Wulan Putri Arman, Utami Dewi Asri Yuda Trinanda Boy, Wendy Briant Mcchristyadillan Chairi, Maiyozzi Deded Eka Sahputra Deded Eka Sahputra fachri Fakhru Rozi Fakhru Rozi Fakhru Rozi Fatchurrohman, Nanang Fauzi Deca Putra Fitri, Meldia Gusrinaldi, Ilham Hasbi Rianda Hengki Kurniawan Ibnu Hanif Sudarmaka Ifay Ariola Ikmal Baidlo Ilfa, Ida Ilham Novian Jaya, Romi Jihan Melasari Julio Rendi Akbar Juni Saputra Kharisma Permata Sari Kharisma Permata Sari Maiyozzi Chairi Maiyozzi Chairi Mayesi Mayozzi Chairi Mediana Desfita Mohammad Farid Muhammad, Al Mursyid, Muhammad Nadra Arsyad Nainggolan, Rainaldi S Nanang Fatchurrohman Nanda Nanda Nanda Nanda Nanda Nasmirayanti, Rita Nofriadirman Noto Dewantoro Nugrafindo Yanto Oktavani, Devita Lira Prawiro, Radius Purba, Widiawati Rainaldi S Nainggolan Rama Dandi Rita Nasmirayanti Rita Nasmirayanti Romi Eka Putra Romi Jaya Rozi, Fakhru Sahputra, Deded Eka Sari, Afrilda Sofia Anita Sofia Anita Sofia Anita Sonya Ostha Laurency Suandi, Ramadhani Tedy Wiraseptya Thasbih Al Fajri Tonny Yuwanda Utami Dewi Arman Utami Dewi Arman Utami Dewi Arman Vernanda Em Afdhal Wendy Boy Widiawati Purba Widiawati Purba yanto, heri Yelviola Richi Sonia Yogi Andzel Pratama Yundari, Yundari Zakpar Siregar Zefri Yenni Zulva Andika