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Elizar
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Mechanistic Characteristics of HRS-WC Mixture Using Tabas Stone Waste Coated With Plastic Waste As Aggregate Ariawan, I Made Agus; Wedagama, Dewa Made Priyantha; Elizar; Genta Putra, Komang Alit; I Putu Chandra Wibawa
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 3 (2024): JGEET Vol 09 No 03 : September (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.3.14701

Abstract

Utilization of tabas stone waste and polypropylene (PP) plastic waste has not been carried out massively and optimally because it lacks economic value. The Tabas stone waste can be used as an aggregate for pavement. The porous characteristic of tabas stone results in a high rate of absorption and abrasion, so modifications are made by coating the aggregate with an PP plastic. The aim of this experiment was to determine the characteristics of the HRS-WC mixture with the aggregate of tabas stone coated with plastic. The initial step of this research was testing the tabas stone aggregates, bitumen material, and PP plastic according to the SNI procedure, the next step was Marshall test to find the Optimum Bitumen Content (OBC), the OBC value was obtained by 10%. Coating the aggregate with shredded plastic measuring ± 1 cm2 was done on coarse aggregate only using the dry method with the proportions of plastic are 5% and 10% of the total weight of coarse aggregate. The characteristics of the aggregate coated with plastic decrease in the value of absorption and abrasion, but only 10% of the plastic content met the specifications with a value of 2.5% and 19.63%. The Marshall testing on the HRS-WC mixture with plastic-coated aggregates was done at variations in bitumen content of 8.5%; 9%; 9.5%. The mixture at 5% plastic content only 9.5% bitumen content met the specifications, namely: stability 1352.72 kg, flow 3.39 mm, MQ 402.23 kg/mm, VIM 5.75%, VMA 18.62% , and VFB 69.16%. When at 10% plastic content, only 9% and 9.5% bitumen content met the specifications, namely the stability of 1370.06 kg; 1456.21 kg, flow 3.81 mm; 3.98 mm, MQ 365.31 kg/mm; 370.06 kg/mm, VIM 5.77%; 4.89%, VMA 18.07%; 18; 15%, and VFB 68.05%; 73.04%. Asphalt mixture of 9% bitumen content, 10% plastic content has more ITSM  value compared to 5% plastic content. This is due to the plastic content in the mixture of 10% plastic content which causes the mixture to be stiffness. Asphalt mixture with a plastic content of 5%, with an bitumen content of 9.5% faster than the mixture with an bitumen content of 8.5% and 9% in the ITFT test. Asphalt mixture with a plastic content of 5%, with a variation of bitumen of 8.5% experienced a decrease in the dynamic creep strain value until the bitumen content was 9.5%. A mixture with a plastic content of 5% aggregate coating is recommended for HRS WC that uses tabas stone.
KOMPOSISI MUSIK “NAN DI TANGGUANG” TERINSPIRASI DARI KESENIAN DENDANG RATOK SOLOK DI KABUPATEN SOLOK PROVINSI SUMATERA BARAT Febriani, Sonia; Elizar
MERDEKA : Jurnal Ilmiah Multidisiplin Vol. 2 No. 2 (2024): Desember
Publisher : PT PUBLIKASI INSPIRASI INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/merdeka.v2i2.3231

Abstract

Komposisi musik tradisi memainkan peran penting dalam pelestarian budaya dan identitas suatu masyarakat. Penciptaan musik adalah proses kreatif yang melibatkan pemilihan dan pengorganisasian elemen-elemen musik seperti melodi, harmoni, ritme, dan tekstur untuk menghasilkan karya yang ekspresif dan komunikatif. Karya ini terinspirasi dari tradisi kesenian dendang ratok solok yang mana kesan tangga nada minor pada kesenian ini sangat kental dan dendang ini memiliki makna tersirat tentang kehilangan salah satu anggota keluarga, yang sangat penting di dalam kehidupan. Karya ini sengaja diungkapkan dengan lirik lirik yang meratapi tentang kehilangan, dan lebih di dominasi kepada nada tangga minor.
Harmoni Tradisi: Eksplorasi Seni Tambua Pupuik Batang Padi Munandar, Edo; Elizar
MERDEKA : Jurnal Ilmiah Multidisiplin Vol. 2 No. 3 (2025): Februari
Publisher : PT PUBLIKASI INSPIRASI INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/merdeka.v2i3.3741

Abstract

Kesenian tambua pupuik batang padi merupakan salah satu bentuk ekspresi budaya yang berasal dari masyarakat petani padi di Indonesia, khususnya di daerah Maninjau Kabupaten AGAM. Kesenian ini menggabungkan unsur musik dan tari yang menggunakan batang padi sebagai alat utama dalam pertunjukan. Tambua pupuik batang padi tidak hanya berfungsi sebagai hiburan, tetapi juga memiliki makna simbolis yang mendalam, terkait dengan proses pertanian dan rasa syukur atas hasil panen. Dalam ritual ini, masyarakat mengungkapkan penghormatan kepada alam dan leluhur, serta memohon agar hasil pertanian yang diperoleh dapat melimpah. Penelitian ini bertujuan untuk menggali peran kesenian tambua pupuik batang padi dalam pelestarian budaya lokal dan identitas masyarakat. Hasil penelitian menunjukkan bahwa kesenian ini tetap relevan dalam konteks sosial dan budaya, meskipun telah mengalami beberapa perubahan bentuk untuk menyesuaikan dengan perkembangan zaman.
Empowering Elementary Students Through the Kampus Mengajar Program: Literacy and Numeracy Insights Apriliatini, Vivi; Elizar
Journal for Lesson and Learning Studies Vol. 7 No. 3 (2024): October
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jlls.v7i3.86847

Abstract

Higher education in Indonesia faces challenges in producing graduates who align with contemporary needs, particularly in enhancing fundamental skills among elementary school students. The Merdeka Belajar Kampus Merdeka (MBKM) initiative seeks to foster flexible and relevant learning. This study aims to analyze the contributions of the fifth cohort of the Kampus Mengajar program in developing students' literacy and numeracy skills. A qualitative approach was employed, utilizing observation and documentation methods for data collection. The subjects were fifth-grade elementary school students, and data analysis was conducted descriptively by categorizing findings based on literacy and numeracy indicators. The results demonstrate that the Kampus Mengajar program positively contributes through activities such as reading corners and a 15-minute literacy program before formal learning sessions. These activities successfully increased students' reading interest, concentration, vocabulary expansion, and critical thinking. Moreover, pre-test results from the Minimum Competency Assessment (AKM) revealed that most students achieved basic literacy competency, providing valuable insights for teachers in designing more focused learning. In conclusion, the Kampus Mengajar program has a significant impact on improving students' literacy and numeracy skills. Recommendations include expanding collaboration with local governments, non-governmental organizations, and donors to provide more adequate resources.
Fostering Reading Habits: The Impact of the Reading Corner Program in Elementary Schools Apriyani, Reni; Elizar
Journal for Lesson and Learning Studies Vol. 7 No. 3 (2024): October
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jlls.v7i3.87996

Abstract

Reading interest among students remains a significant challenge in education, particularly at the elementary level. This study aims to evaluate the role of university students participating in the Teaching Campus Program in fostering students' reading interest through the development of the Reading Corner initiative. A qualitative approach was employed, utilizing methods such as observation, in-depth interviews, focus group discussions, and document analysis to gather comprehensive data. The findings revealed that the Reading Corner Program had a substantial impact on increasing students' reading interest. Prior to the program's implementation, only 20% of students actively engaged in reading activities, but this figure surged to 98% after the program was introduced. The program's success was attributed to the provision of books aligned with students' interests, interactive reading activities, and the integration of literacy practices into the learning process. Despite challenges such as limited school facilities, the program successfully created an engaging learning environment that actively encouraged student participation. The study concludes that the Reading Corner Program effectively promotes a reading culture among students while maximizing the role of university students in literacy development. These findings underscore the importance of similar initiatives to strengthen student literacy as part of a sustainable strategy for improving educational quality.
Effectiveness of Using Animation Videos in Science Learning in Elementary Schools: A Systematic Literature Reviews Putri, Siti Anisa; Rohmani; Apriza, Berta; Elizar
Indonesian Journal of Educational Research and Review Vol. 7 No. 3 (2024): October
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijerr.v7i3.82242

Abstract

Science learning in elementary schools plays a crucial role in fostering students' curiosity and interest in science, developing critical and logical thinking skills, and equipping students with scientific knowledge and practical skills applicable in daily life. This study aims to analyze the effectiveness of animated videos in enhancing science learning in elementary schools through a systematic literature review. Employing the Systematic Literature Review (SLR) method, data were sourced from Google Scholar, focusing on articles published between 2019 and 2023. The review was conducted in five stages. In the initial search using the keyword "use of animated videos," 1,280 documents were identified. Refining the search by limiting the publication years yielded 227 documents, while adding the keyword "science learning" identified 246 documents. Further narrowing with the keyword "primary school" produced 197 documents. Finally, the dataset was filtered based on alignment with the research theme. The findings reveal that animated videos are highly effective in enhancing science learning outcomes in elementary schools. These results emphasize the importance of integrating engaging instructional media, such as animated videos, to facilitate effective communication of science concepts. Educators are encouraged to incorporate such tools to create more interactive and impactful learning experiences in science education.
Evaluating K13 and Merdeka Curriculum Implementation in Primary Education: A Comprehensive Literature Review Pratiwi, Agustin Adelia Sisca; Elizar; Apriza, Berta; Sumarno
Indonesian Journal of Educational Research and Review Vol. 7 No. 3 (2024): October
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijerr.v7i3.83226

Abstract

Elementary education in Indonesia has undergone significant reforms with the introduction of the K13 Curriculum and the Merdeka Curriculum. These changes aim to enhance the quality of education and equip students with 21st-century skills. This study seeks to analyze the differences in the implementation of the Merdeka Curriculum and the K13 Curriculum through a systematic literature review. The research employed the SLR (Systematic Literature Review) method using Google Scholar as the primary database. The literature reviewed was limited to the period from 2019 to 2023, using a three-stage keyword search process. The first stage resulted in 3,340 documents with the keyword "K13 Curriculum." The second stage yielded 492 documents with the keywords "Merdeka Curriculum" and the addition of "AND" between these terms. In the third stage, adding the keyword "in elementary school" and the term "AND" between the earlier keywords narrowed the results to 225 documents. These documents were further filtered based on inclusion criteria, resulting in 7 articles for detailed analysis. The analysis revealed significant differences in focus and approach between the two curricula. The K13 Curriculum emphasizes the development of affective, cognitive, and psychomotor competencies through a scientific approach, while the Merdeka Curriculum prioritizes the Pancasila Student Profile through P5 (Project-Based Learning) and differentiated instruction. These changes pose challenges for educators, particularly regarding understanding and skill acquisition in implementing the curriculum.
Geotechnical Insights into Andesite Quarry Slope Stability: A Case Study from Desa Usul, Indragiri Hulu, Riau, Indonesia Diondo Simatupang, Ismon; Kausarian, Husnul; Elizar
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.04.20074

Abstract

This study investigates the slope stability of andesite quarries from a geotechnical and civil engineering perspective, emphasizing geological, geotechnical, and civil engineering factors influencing stability and their implications for mining and infrastructure operations. Andesite is widely used as an aggregate material in construction due to its compliance with Indonesian National Standards (SNI) for aggregate quality. Through comprehensive geotechnical assessments and slope stability analyses, the research concludes that the Andesite quarry slopes exhibit high levels of stability, supporting safe mining practices. Calculated Factor of Safety (FS) values consistently exceed safety thresholds, indicating favorable conditions for resource extraction. Slope simulations using Slide and Geoslope applications confirm the robustness of the slopes, with Safety Factor (FS) values ranging from 1.601 to 2.614. The implementation of open-cut methods, supported by meticulous slope design and blasting techniques, enhances safety and efficiency in mining operations. The study underscores the feasibility and safety of mining activities in the researched area, contributing to the advancement of mining engineering practices in volcaniclastic environments. Effective slope management strategies are essential for ensuring sustainable resource extraction while prioritizing worker safety and environmental integrity.
Prediction the Maximum Deflection of the Prototype of Nailed-slab Pavement System Using the Allowable Equivalent Modulus of Subgrade Reaction Puri, Anas; Oktavia, Ferly; Elizar; Dharmowijoyo, Dimas B.E.; Ali, Mujahid; Liza Evianti Tanjung
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): Article In Press JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

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

Abstract

An equivalent modulus of subgrade reaction was proposed for analyzing the Nailed-slab Pavement System. This modulus is defined by accumulating the modulus of subgrade of the slab and the additional modulus of subgrade reaction which is contributed by a pile under the slab. The additional modulus can be defined by the Modified Hardiyatmo Method. The equivalent modulus of subgrade reaction only consideres a safety factor for additional modulus of subgrade reaction. In this research, a global safety factor will be considered for all modulus. This research is aimed to learn the prediction of the slab deflection by using the allowable equivalent modulus of subgrade reaction. The global safety factor was varied by 1.0; 2.0; 2.5; and 3.0. The slab deflection was calculated by using Beam on Elastic Foundation. Data of the nailed-slab and the soil were based on the previous researcher for a single pile nailed-slab model. Results show that the calculated deflection of the slab was in good agreement with the observed deflection. Increasing the global safety factor resulted in the over-estimated slab deflections. It means the design by using allowable equivalent modulus of subgrade reaction tends to result in a safety zone.
MANGGODOK SEBAGAI REPRESENTASI NILAI SOSIAL DAN RELIGIUS Di NAGARI SIRUKAM KECAMATAN PAYUNG SEKAKI KABUPATEN SOLOK SUMATERA BARAT DALAM TRADISI MINANGKABAU Illahi, Rendi kurnia; Elizar
EZRA SCIENCE BULLETIN Vol. 3 No. 1 (2025): January-June 2025
Publisher : Kirana Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/ezrasciencebulletin.v3i1.304

Abstract

Manggodok, sebagai salah satu bentuk tradisi kuliner dalam masyarakat Minangkabau, tidak sekadar dipahami sebagai aktivitas memasak makanan khas, tetapi memiliki makna yang lebih dalam sebagai representasi nilai-nilai sosial dan religius. Tradisi ini umumnya dilakukan dalam konteks kegiatan adat atau keagamaan, seperti dalam persiapan kenduri, alek nagari, atau upacara keagamaan lainnya. Penelitian ini bertujuan untuk mengeksplorasi makna simbolik di balik praktik manggodok, serta bagaimana nilai sosial dan religius terinternalisasi dan diwariskan melalui aktivitas tersebut. Metode yang digunakan adalah pendekatan kualitatif dengan teknik pengumpulan data berupa observasi partisipatif, wawancara mendalam, dan studi literatur terhadap sumber-sumber lokal maupun akademik.
Co-Authors Ali, Mujahid Anas Puri, Anas Apriliatini, Vivi Apriyani, Reni Berta Apriza Berta Apriza D.M Priyantha Wedagama Dharmowijoyo, Dimas B.E. Diondo Simatupang, Ismon febby yolanda Febriani, Sonia Ferly Oktavia Genta Putra, Komang Alit Husnul Kausarian I Made Agus Ariawan I Putu Chandra Wibawa Illahi, Rendi kurnia Irawan Suprapto Liza Evianti Tanjung Munandar, Edo Muntazah, Adinda Novita Sari Pratiwi, Agustin Adelia Sisca Putri, Kharisma Putri, Siti Anisa R Rohmani Sumarno Yasinta Mahendra, Yasinta