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Yulcherlina
Universitas Bung Hatta
Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Engineering Transportation Other

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ANALISA BIAYA PERKERASAN ASPAL DENGAN SUBSTITUSI PLASTIK Embun Sari Ayu; Yulcherlina
JURNAL REKAYASA Vol 10 No 1 (2020): Jurnal REKAYASA
Publisher : Fakultas Teknik Sipil dan Perencanaan. Universitas Bung Hatta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37037/jrftsp.v10i1.49

Abstract

Cina dan Indonesia adalah sumber utama botol plastik, tas dan sampah lain yang menyumbat jalur laut global (McCarthy, 2018). Untuk itu perlu dilakukan upaya guna mengurangi permasalahan tersebut, salah satu upaya yang dapat dilakukan adalah dengan mengolah kembali limbah tersebut menjadi sesuatu yang berguna, salah satunya sebagai bahan pengganti agregat penyusun perkerasan jalan sehingga dalam perencanaan biaya perkerasan jalan akan berkurang. Hal inilah yang melatarbelakangi penelitian ini dimana penggunaan limbah plastik akan digunakan sebagai bahan pengganti campuran pada aspal. Limbah plastik yang digunakan dalam penelitian ini adalah jenis low density polyethylene (LDPE), jenis limbah plastik yang banyak dihasilkan namun kurang dimanfaatkan karena dinilai kurang menarik dan memiliki harga jual yang rendah. Penelitian ini dilakukan untuk mengetahui pengaruh penggunaan LDPE sebagai pengganti agregat campuran AC-WC yang ditinjau dari karakteristik Marshall pada Kadar Aspal Optimum (KAO) yang kemudian dilakukan penggantian sebagian dari total agregat. Variasi kadar LDPE yang digunakan adalah 0%, 2%, 4%, 6% dan 8%. Setiap variasi dibuat sebanyak tiga buah sampel. Dari hasil pengujian didapatkan bahwa dengan penggantian LDPE dalam range 0.1% - 4% cenderung meningkatkan Nilai Stabilitas, VIM, VMA dan Marshall Quotient (MQ), dan nilai Flow dan VFB cenderung menurun. Dengan sebuah perencanaan perkerasan jalan dengan lebar 7 m, tebal 6 cm dan panjang 1 km setelah melakukan substitusi terhadap berat total agregat campuran dapat menghemat biaya perencanaan sebesar Rp. 78.720.030 dan mengurangi jumlah plastik sebanyak 12.933,99 kg.
Pengaruh Efektivitas Pembelajaran dan Kemandirian Belajar terhadap Hasil Belajar Mata Kuliah “Kebung Hattan” Berdasarkan Perspektif Ekonomi Herawati, Susi; Fauziati, Popi; Yulcherlina, Yulcherlina; Gustika, Roza; Putri, Somi Nana
JPEK: Jurnal Pendidikan Ekonomi dan Kewirausahaan Vol 8 No 3 (2024): JPEK (Jurnal Pendidikan Ekonomi dan Kewirausahaan)
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jpek.v8i3.27924

Abstract

This study highlights  the influence of learning effectiveness and learning independence on the learning outcomes of the "Kebung Hattaan" course based on an sconomic perspective.  Bung Hatta is highly active in offering insights on economic concepts, particularly focusing on the core economic values he aims to promote, which include the value of ownership, justice, togetherness, and brotherhood. His notable economic philosophy emphasizes the people's economy, advocating for the development of the economy for farmers, fishermen, and others through cooperative efforts. The purpose of this study is to analyze the influence  of learning effectiveness and learning independence on learning outcomes. This study used 232 respondents who were randomly selected.  The collected data was processed using SPSS software and the hypothesis was proven by multiple regression. The results of the study show that the effectiveness of learning and learning independence affect student learning outcomes
The Construction and Structure Reliability of Jam Gadang: The Heritage of West Sumatera Khadavi, Khadavi; Yulcherlina, Yulcherlina
Jurnal Rekayasa Konstruksi Mekanika Sipil Vol 1 No 1 (2018): Volume 1 Nomor 1 Tahun 2018
Publisher : Fakultas Teknik Universitas Katolik Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4281.331 KB) | DOI: 10.54367/jrkms.v1i1.232

Abstract

The Big Ben (Jam Gadang) is a tower building of 28.295 meters height positioned as the landmark and the heritage of both Bukittinggi city and West Sumatra province. It was built in 1926 by architects Yazin and Sutan Gigi Ameh as the gift from the Queen of the Netherlands to the controleur (secretary of Bukittinggi City). Major perception of the people that Jam Gadang was build by using masonry for the entire building. Following massive earthquakes in 2007 the Indonesian Heritage Trust in cooperation with the Shared Heritage Program of the Netherlands initiate full investigation of the tower. The activity was aimed at gathering data of the structure and analyzes the reliability of the current structure of the building. The result of such activities found that the construction of Jam Gadang consist of reinforced concrete with the compressive strength ≥ 25Mpa on average, the foundation consists of full stone with the prism shape until -1,800 mm. The column have a dimension with variation of 800 mm x 800 mm at the first floor and 400 mm x 400 mm at the top floor of the tower, with 18 mm longitudinal and 10 mm shear reinforcement, the beam and plate have the composite structure of steel beam H 105.90.10.25. The modeling and analysis of the structural reliability of Jam Gadang tower for earthquake load based on the Indonesian Code SNI-03-2847- 2002, with maximum lateral deformation of (δmax) 63.00 mm which is smaller than lateral deformation limit of 83.70 mm.
Innovation in Using Ferro Cement Technology for Kelulut Bee Breeders in Kampung Temenin Lama Village – Malaysia Khadavi, Khadavi; Sama, Abdul Rahman Mohd; Yulcherlina, Yulcherlina; Fauziati, Popi; Zalmi, Deri; Purwandi, Yan
Jurnal SOLMA Vol. 14 No. 2 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i2.18444

Abstract

Background: Budidaya lebah kelulut adalah salah satu program yang dikembangkan melalui program Koperasi Kampung Temenin Kota Tinggi Berhad di Negeri Koto Tinggi Johor Malaysia dengan 2 Universitas yaitu Universitas Bung Hatta, Indonesia dan Universiti Teknologi Malaysia Usaha budidaya lebah kelulut yang dikembangkan koperasi ini masih berbasis dengan metode tradisional yaitu penggunaan rumah sarang kelulut dan penopang rumah sarang kelulut masih terbuat dari kayu. Pengabdian ini bertujuan untuk membuat inovasi baru dalam pembuatan rumah lebah kelulut dan penopang dari material semenfero sehingga dapat lebih meningkatkan jumlah madu dan perekonomian masyarakat di Kampung Temenin ini. Metode: Pengabdian dilakukan melalui sosialisasi dan pelatihan pembuatan rumah lebah kelulut berbahan semen fero kepada peternak lebah kelulut. Hasil: Penggunaan inovasi semen fero menciptakan lingkungan yang baik dan aman bagi lebah sehingga produksi madu menjadi meningkat. Peningkatan produksi madu terjadi sebanyak 20 % dimana dari 55 log diperoleh madu sebanyak 22 liter. Kesimpulan: Penggunaan semen fero sebagai material pembuatan kotak dan penopang sarang kelulut membuat kotak sarang lebah menjadi lebih kuat dan aman dari gangguan binatang lain. Dengan kondisi kotak yang baik maka jumlah madu yang dihasilkan lebah menjadi meningkat.
Analisis Faktor-Faktor yang Memengaruhi Produktivitas Tenaga Kerjapada Proyek Konstruksi Bangunan Gedung Baru RSU Bunda Padang Rendi Fatria Yusra; Rini Mulyani; Yulcherlina
Jurnal Teknik Sipil Institut Teknologi Padang Vol 13 No 2 (2026): Jurnal Teknik Sipil Institut Teknologi Padang
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jts.2026.V1302.0228-236

Abstract

The implementation of construction projects is required to achieve optimal quality, be completed on time, and within the planned budget. In the effort to achieve that success, labor productivity becomes one of the important factors that greatly influence the smooth execution of the project. A low level of labor productivity can cause various negative impacts, such as delays in project completion, increased implementation costs, and a decline in the quality of the work results. Therefore, an analysis of the factors affecting labor productivity is necessary so that the project implementation can run more effectively and efficiently. This study aims to identify the factor with the highest relative importance that affects labor productivity in the construction project of the RSU Bunda Padang building. The research method used is a quantitative method with data collection thru the distribution of questionnaires to respondents involved in the project. The data obtained were then analyzed using IBM SPSS V20 software to conduct validity and reliability tests. Next, the Relative Importance Index (RII) analysis is used to rank the factors that most influence labor productivity in the construction project. Based on the results of the validity and reliability tests, out of the 20 research variables, 19 variables were declared valid and reliable. The RII analysis results show that the availability of materials is the most influential factor on labor productivity, with an RII value of 0.9608.
Co-Authors Embun Sari Ayu Fauziati, Popi Gustika, Roza Khadavi, Khadavi Purwandi, Yan Putri, Somi Nana Rendi Fatria Yusra Rini Mulyani Sama, Abdul Rahman Mohd Susi Herawati Zalmi, Deri