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KUAT TEKAN BETON DENGAN MENGGUNAKAN LATERIT SEBAGAI AGREGAT KASAR DAN PASIR MAHAKAM SEBAGAI AGREGAT HALUS Ridwan Effendi; Budi Haryanto; Fachriza Noor Abdi
Teknologi Sipil : Jurnal Ilmu Pengetahuan dan Teknologi Vol 4, No 1 (2020): JTS TEKNOLOGI SIPIL
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ts.v4i1.4928

Abstract

Beton merupakan bahan bangunan yang banyak digunakan dalam konstruksi pembangunan gedung dan perkerasan jalan. Agregat kasar dan agregat halus merupakan 2 komponen yang utama sebagai bahan penyusun beton. Sebagai agregat kasar yang digunakan pada penelitian ini yaitu laterit  serta pasir mahakam yang digunakan sebagai sebagian agregat halus, dengan memanfaatkan laterit yang telah dihancurkan menggunakan stone crusher sebagai material penyusun beton (agregat kasar dan agregat halus) dengan tujuan penelitian untuk mengetahui kuat tekan beton maksimal, mengetahui nilai kuat tekan karakteristik beton, mengetahui proporsi campuran, mengetahui manfaat yang dapat dipergunakan pada campuran beton, mengetahui pola retak pada pengujian kuat tekan beton. Penelitian ini dimulai dengan pengujian terhadap masing-masing bahan penyusun dan membuat rancangan adukan beton berdasarkan metode SNI 03-2834-2000. Mutu beton yang direncanakan 20 Mpa, selanjutnya adalah pembuatan benda uji berbentuk silinder dengan ukuran 150 mm x 300 mm sebanyak 25 benda uji dimana untuk setiap sebanyak 5 benda uji. Pengujian kuat tekan beton dilakukan setelah beton berumur 3, 7, 14, 21 dan 28 hari dievaluasi berdasarkan SNI 03-1974-1990.. Komposisi material campuran adalah (pasir 28%; laterit 1/2 52%; laterit 2/3 20%). Nilai kuat tekan adalah sebesar 20,05 MPa pada umur 28 hari. Nilai kuat tekan karakteristik (f’ck) beton laterit adalah 18,21 MPa Proporsi campuran material beton laterit untuk 1 m3 adalah maka material yang dibutuhkan semen 352,4 Kg; air 178,35 Kg/ltr; pasir mahakam 502,2 Kg; laterit 1/2 892,98 Kg; laterit 2/3 344,72 Kg dan perbandingan adukan beton adalah semen: air: laterit 1/2: laterit 2/3 = 1: 1,42: 2,53: 0,98. Beton laterit dapat dipergunakan untuk membuat beton bertulang seperti pelat lantai dasar, gorong-gorong beton bertulang, bangunan bawah jembatan dan struktur beton tanpa tulangan seperti beton siklop, trotoar dan pasangan batu kosong yang diisi adukan pasangan batu, Hasil pengujian benda uji silinder menunjukkan pola retak yang dominan terjadi adalah shear dan cone and shear
PENGARUH PERUNDUNGAN TERHADAP GANGGUAN PSIKOLOGIS BAGI MAHASISWA Denaya Ayu Fadiah; Nazwa Nur Afifah; Rida Nurul Fadillah; Ridwan Effendi; Ratna Fitria
Jendela Inovasi Daerah Vol 6 No 2 (2023): Agustus
Publisher : Badan Perencanaan Pembangunan, Riset dan Inovasi Daerah Kota Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56354/jendelainovasi.v6i2.146

Abstract

Bullying is an act of violence that can cause psychological disorders in someone. Bullying can be done with the aim of hurting someone either verbally, physically or through social media. Currently cases of bullying are rife among students in Indonesia. The impact experienced by victims of bullying can lead to disturbed psychological conditions and physical health complaints. Therefore, this article was created with the aim of adding a sense of social awareness to cases of bullying in the surrounding environment, implementing Pancasila values in actions and behavior, and educating both victims and perpetrators of bullying. The method used in this study is qualitative which is distributed through questionnaires to university students. The results of the study show that among adolescents, especially college students, cases of bullying are still very high, victims of acts of bullying will experience psychological pressure which affects the mental health of victims. This condition can cause high levels of anxiety, depression and decreased morale of victims. Pancasila values should be implemented by all Indonesian people, especially students, especially in the second precept which reads "Kemanusiaan yang adil dan beradab" which relates to cases of bullying, and socialization of cases of bullying is one of the efforts to prevent cases of bullying.
Instagram Storytelling to Advocate Media Literacy (A Study Case of an Indonesian Civil Society Organization) Gesha Fadhillah Ramdhan; Vidi Sukmayadi; Ridwan Effendi
Innovative: Journal Of Social Science Research Vol. 4 No. 2 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

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

Abstract

Konvergensi media dan digitalisasi teknologi memfasilitasi arus informasi yang tidak terbatas dalam kehidupan sosial individu. Akibatnya, literasi media menjadi instrumen penting untuk bertahan dari tsunami informasi. Namun, pemerintah terus menghadapi hambatan dalam mempromosikan literasi media. Organisasi masyarakat sipil (OMS) dapat membantu pemerintah dalam mempromosikan literasi media dalam situasi ini. Studi ini bertujuan untuk mengeksplorasi strategi kampanye media sosial CSO Indonesia dan pentingnya tingkat keterlibatan media sosialnya. Untuk menentukan tingkat keterlibatan media sosial, metodologi campuran yang terdiri dari wawancara mendalam dan analisis konten selama setahun digunakan. Temuan mengungkapkan bahwa strategi storytelling dilakukan dalam tiga tahap: perencanaan, produksi, dan evaluasi. Konten media sosial terinspirasi dan dihasilkan berdasarkan laporan publik dan temuan independen selama tahap perencanaan. Konten tersebut kemudian diproses menggunakan paradigma sandwich selama fase produksi. Tujuan inti Mafindo dalam menyebarkan informasi ancaman disinformasi telah terpenuhi, meskipun engagement rate akun Mafindo (@turnbackhoaxid) belum mencapai tingkat optimal. Dengan demikian, masih ada ruang untuk perbaikan dengan mengoptimalkan mekanisme umpan balik audiens untuk membangun hubungan yang lebih kuat antara CSO dan audiens, yang dapat mengarah pada peningkatan dukungan dan dampak yang lebih besar untuk penyebabnya.
Peningkatan Hasil Belajar pada Pembelajaran Tematik Terpadu Menggunakan Model Cooperative Script di Kelas IV SD Effendi, Ridwan; Reinita, Reinita
Jurnal Pendidikan Tambusai Vol. 4 No. 3 (2020): December 2020
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v4i3.640

Abstract

Penelitian ini bertujuan untuk mendeskripsikan peningkatan hasil belajar siswa pada pembelajaran tematik terpadu menggunakan Model Cooperative Script di kelas IV SDN 21 Taluak IV Suku Banuhampu Kabupaten Agam. Penelitian ini menggunakan pendekatan kualitatif dan kuantitatif. Jenis penelitian yaitu penelitian tindakan kelas (PTK). Subjek penelitian adalah siswa kelas IV SDN 21 Taluak IV Suku Banuhampu Kabupaten Agam sebanyak 26 siswa. Penelitian dilaksanakan dua siklus. Rancangan penelitian meliputi,(1) perencanaan, (2) pelaksanaan, (3) pengamatan dan (4) Refleksi. Hasil penelitian menunjukkan peningkatan pada : a) RPP siklus I 81,94% (B) Siklus II 91,66% (AB) b) pelaksanaan pada aspek guru siklus I 81,9% (B) Siklus II 94,4% (AB) c) pelaksanaan pada aspek siswa Siklus I 80,55% (B) pada siklus II 94,44% (AB) d) hasil belajar siswa siklus I 77,02 (B) pada siklus II 81,49 (B+) . Dengan demikian model Cooperative Script dapat meningkatkan hasil belajar tematik terpadu siswa kelas IV SDN 21 Taluak IV Suku Banuhampu Kabupaten Agam.
The short story of Sang Pemimpin as a means of conflict resolution Amalia, Triana; Sapriya, Sapriya; Effendi, Ridwan
JIPSINDO Vol. 11 No. 1 (2024): JIPSINDO (Jurnal Pendidikan Ilmu Pengetahuan Sosial Indonesia)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipsindo.v11i1.66162

Abstract

Conflict is unavoidable, especially for Generation Z who are currently studying at the junior high school level. They are always familiar with the internet and social media and tend to avoid conflicts with family, friends or in the surrounding environment. Researchers focus on Conflict resolution skills included in the dimensions of social participation skills in social studies learning. This research aims to determine how effective the short story media "Sang Pemimpin" by Sori Siregar is on the conflict resolution skills of students at SMP Negeri 1 Cibadak. The research method used was a quasi-experiment with a nonequivalent control group design. The analysis techniques used are the Kolmogorov-Smirnov normality test and hypothesis testing using the t-test. The research results showed that the use of social studies learning media in the form of a short story entitled "Sang Pemimpin" in class experimental class was more effective as seen in the post-test results with an average of (165.38). Meanwhile, the post-test results from the control class only used media in the form of news articles in the social studies textbook, getting post-test results with an average of (146.81). It is hoped that the findings of this research will increase the variety of social studies learning media such as printed reading media
.Analisa Proses Tahapan Akuisisi Bank ABC oleh PT XYZ dan PT DEF Effendi, Ridwan; Abidin, Zaenal
Al-Kharaj : Jurnal Ekonomi, Keuangan & Bisnis Syariah Vol 6 No 3 (2024): Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah
Publisher : Research and Strategic Studies Center (Pusat Riset dan Kajian Strategis) Fakultas Syariah IAI Nasional Laa Roiba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/alkharaj.v6i3.4920

Abstract

The development of Mergers and Acquisitions is a form of corporate growth strategy to access new products and markets and is considered a fast way. PT Bank ABC was acquired by PT DEF which aims to compete in the Digital Bank business which is currently developing in Indonesia. In general, a bank that is acquired will have a positive effect on its financial performance, but this needs to be reviewed in non-financial matters such as work culture or constraints in making strategic decisions on the continuity of PT Bank ABC's business, the research method used is a qualitative research method with a descriptive method by comparing the performance and work culture of PT Bank ABC before the acquisition and after the acquisition. The data used in this research consists of primary data and secondary data obtained from various sources, primary data obtained directly from interviews with several Middle Top Management of PT Bank ABC while secondary data obtained from monthly publication reports of PT Bank ABC before the acquisition process and after the acquisition process. Broadly speaking, the acquisition process of PT Bank ABC has been carried out in accordance with the POJK provisions and while in terms of performance or work culture there are differences after the takeover of shares. Keywords: merger & acquisition, process evaluation, performance & work culture.
Efektivitas Model Pembelajaran Visual Auditory Kinesthetic (VAK) Terhadap Motivasi Belajar IPS Siswa SMP Dewi Sartika Rahmah, Aulia; Effendi, Ridwan; Muthaqin, Dwi Iman
The Indonesian Journal of Social Studies Vol 7 No 1 (2024): Juli
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ijss.v7n1.p101-111

Abstract

Education is essential, it is necessary to constantly improve its quality. This research began with the researcher's field practice, students often complained about the lessons presented by the teacher which seemed tough and boring. It affectsatmospheredecreased learning and impact on decreased student motivation. The aim is to hone teacher skills, as well as prove the application of an interactive learning model, namely the Visual Auditory Kinesthetic learning model which has the principle of combining 3 student learning modalities, while providing new experiences directly to students towards student-oriented learning. Using methodquasi experiment. The results of this study show that after carrying out an analysis of the IBM SPSS version 26 test, the results obtained are sig 0.000<0,05 whch proves that there are differences in learning motivation bertween before and after learning in the experimental class using the Visual Auditory Kinesthetic learning model. Futhermore, the sig 0,000<0,05 and it is found that there is a change in learning motivation in conventional learning. It is obtained if each of the experimental class and control class 0,000<0,05 so that there are differenes in student learning motivation in the experimental class than the control class.
Determinants Of ROA In Sharia Banks: The Role Of NPF, FDR, And Net Imbalance On Profitability Zulkarnain, Muhammad; Ridwan Effendi; Marti Utari
J-EBIS (Jurnal Ekonomi dan Bisnis Islam) Vol, 9 No 2 (2024)
Publisher : IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/j-ebis.v9i2.9505

Abstract

Islamic banks as a company still have a goal of profit, where profit is often used as a measure of the company's performance. One of the profit ratios is the return on assets (ROA) ratio. Then the ROA in the previous study was influenced by many factors, while in this study it was seen based on the net performance financing (NPF) ratio, financing to deposit ratio (FDR), and net return (NI). The purpose of the study was to determine the effect of the NPF ratio, FDR ratio, and NI ratio on the ROA ratio. The research population was Islamic banks listed on the Indonesia Stock Exchange (IDX), namely 4 companies with data from the first-fourth quarter of 2021 to the second quarter of 2024. Panel data regression data analysis techniques. The results of the study showed that simultaneously net performance financing (NPF), financing to deposit ratio (FDR), and net return (NI) were significant on the return on assets (ROA) ratio, but partially net performance financing (NPF) did not affect the return on assets (ROA) ratio while financing to deposit ratio (FDR) and net return (NI) were significant on the return on assets (ROA) ratio.
The Influence of “Pintu Berkah” FTV Program on The Saving Attitude Ananda Salma Pebrianty; Ridwan Effendi; Kusnendi Kusnendi
Jurnal Pendidikan Ilmu Sosial Vol 30, No 1 (2021): : JPIS (Jurnal Pendidikan Ilmu Sosial): June 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jpis.v30i1.28486

Abstract

The aim of this research is to examine the profession of housewives who have an important role in a family, especially in managing finances for daily needs. The high level of spending in Indonesia causes people to have a wasteful lifestyle, but the adoption of a saving attitude can be influenced by other factors, for example television as a communication medium which can provide positive information content through television shows.  This research uses quantitative methods by distributing questionnaires to collect data and applying moderated regression analysis. Questionnaires were distributed to 100 housewife respondents in Cisaranten Kidul Village with the criteria of watching the FTV program "Pintu Berkah". The results showed that the influence of FTV broadcasts and religiosity had a positive effect on saving attitudes, as evidenced by the values of t = 3.278, p (0.001) α (5%) and t = 3.025, p (0.003) α (5%). Based on the results of these calculations, a housewife proves that with social cognitive theory, a person will learn through experience gained from the media or the environment. Housewife respondents who watch the FTV "Pintu Berkah" tend to be influenced by the program, which has gone through several stages of knowledge processing to then implement a frugal lifestyle in accordance with the religious values adhered to by each individual.
Rancangan Sistem Aplikasi Penilaian Rapot Siswa Kelas IV Mi Attahiriyah II Halim, Abdul; Effendi, Ridwan; Ibrahim, Erik Perdana
Jouhou Gijitsuka: Teknologi Informatika Vol. 2 No. 1 (2025): Artikel Februari Jurnal Jouhou Gijitsuka: Teknologi Informatika
Publisher : STTI Sonysugema

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1003/xvekvx23

Abstract

Tujuan dari penelitian adalah untuk penilaian siswa dalam segi mata pelajaran pada MI Attahiriyah II agar lebih efektif dan efesien dalam proses input datanya. Sudah tidak terjadi kesalahan pada perhitungan nilai mata pelajaran siswa. Penyimpanan dokumen lebih efektif agar dapat memudahkan karyawan dalam proses input data nilai pelajaran siswa pada MI Attahiriyah II. Dari hasil analisis yang berjalan didapatkan permasalahan dalam hal Penilaian raport seperti pengelolaan materi pelajaran dan pencarian maupun pembaharuan materi pelajaran yang kurang efektif dan membuang banyak waktu untuk hal tersebut. Dengan permasalahan yang ada penulis membuat suatu aplikasi sistem Penilaian raport pada MI Attahiriyah II dengan menggunakan pemrograman java dekstop yang ditujukan baik untuk siswa yang membutuhkan data secara cepat dan efisisen seperti materi soal, nilai dan data baik siswa maupun guru.