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All Journal JMPM (Jurnal Material dan Proses Manufaktur) Aptisi Transactions on Management
Hidayat, Kurniawan
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Computer Science & IT Decision Sciences, Operations Research & Management Engineering Mechanical Engineering

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Development of E-Learning-Based Blended Learning to Increase Student Learning Motivation During a Pandemic Hidayat, Kurniawan; Nurdin, Enjang Ali; Nugroho, Eddy Prasetyo
APTISI Transactions on Management (ATM) Vol 7 No 2 (2023): ATM (APTISI Transactions on Management: May)
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33050/atm.v7i2.1992

Abstract

The impact of the Covid-19 pandemic, which began in early 2020, led to the need for online learning. This does not rule out the need for an e-learning media that requires a learning method that supports synchronous and asynchronous learning. Therefore it is necessary to develop e-learning based on blended learning that utilizes the potential of the features in the Moodle Learning Management System. The proposed development of potential features in Moodle is virtual conferences for synchronous learning and discussion forums for asynchronous learning. The use of e-learning based on blended learning aims to get good student learning motivation. To measure the impact of learning motivation, a questionnaire was administered to high school level students. The results of the questionnaire show online learning using other media such as Whatsapp groups without conducting face-to-face learning to get an average score of 1.85 which is a low criterion, while the results of the student learning motivation questionnaire after participating in e-learning based on blended learning get an average score of 3.39 which includes high criteria.
A Change in the Indeks of Retained Strength in the AC-WC Mixture with the Additional Waste Rubber from Used Tires (Crumb Rubber) Hidayat, Kurniawan; Pristyawati, Tantin; Safarizki, Hendramawat Aski
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 1 (2023): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i1.16911

Abstract

The growth of the number of motorized vehicles in Indonesia every year always increases. The consequence of the growth in the number of motorized vehicles is the increasing production of motorized vehicle tires which results in the accumulation of used tire waste. One of the innovations to reduce the waste of used tire rubber is to use it in asphalt mixtures. The study was conducted to determine the change in the index of retained strength in the Asphalt Concrete – Wearing Coarse (AC-WC), is the top layer of pavement which functions as the wear layer,  mixture with the addition of waste rubber from used tires (crumb rubber) meeting the Bina Marga Specifications. The results showed that the addition of waste rubber tires affected the marshall characteristics, namely, the highest specific gravity, density, Voids Filled With Asphalt (VFA), and stability values were at a level of 1%, while the highest values of Voids in Mix (VIM), Void in Mineral Agregate (VMA), and flow were at a level of 9%. From the index of retained strength test, it shows that water affects the durability of the AC-WC mixture, as evidenced by the highest value at the duration of immersion for 24 hours with a concentration of 1%, which de-creases with increasing duration of immersion. The addition of used tire rubber waste (crumb rubber) to the AC-WC mixture has met the Bina Marga Specifications on the Marshall characteristics test, but the change in the index of retained strength was only for a 24-hour immersion duration, while for other durations were not according the Bina Marga Specifications.
Co-Authors Eddy Prasetyo Nugroho Enjang Ali Nurdin Hendramawat Aski Safarizki Tantin Pristyawati