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Sufriadin .
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Public Health

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Peningkatan Kualitas Bahan Baku Pengrajin Batubata Di Desa Panyyangkalang Kecamatan Bajeng Kabupaten Gowa Sufriadin .; Irzal Nur; Sri Widodo; Djamaluddin .; Nirmana Fiqra Qaidahiyni; Andi Arumansawang; Asta Arjunoarwan Hatta; Nur Alam Fajar
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.219

Abstract

Craftsman group of earth brick at Ballaparang sub village, Panyyangkalang village of Bajeng Subdistrict in the Gowa Regency has long been produced bricks mainly for the construction materials in the Makassar City and Gowa. However, some problems arisen by the craftsman such as brick quality produced is crack easily and the brick maturity during firing is difficult to control. To solve the problem, it was performed the counseling activity with the aims at increasing the brick quality through firing test with controlled temperature and time. The compressive strength test was conducted and compared to the brick produced by craftsman. In addition, mineralogical and chemical testing of raw material was performed using X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF) methods respectively. Compressive strength test was carried out for both bricks produced by craftsman and brick fired in laboratory using Unconfined Compressive Strength (UCS) method. Testing results show that clay raw materials were composed of feldspar (plagioclase), quartz, illite, nacrite, and magnetite. Chemical testing exhibits that iron oxides (Fe2O3) is high so it is suggested to reduce the iron content in raw materials by using low-intensity magnetic separator. The implementation results of compressive strength produced by craftsman provide the average value of 3.03 MPa whereas brick fired in the laboratory give the minimum value of 5.09 Mpa which was achieved in 6 hour and 500oC firing. The contribution of this activity indicates the improvement of brick quality mainly compressive strength up to 59 %.
Mineral and Rock Characteristics Identification Training Program for Geology-Mining Students at SMK Negeri 5 Barru Andi Febby Alvionita; Sufriadin .; Purwanto .; Rini Novrianti Sutardjo Tui; Asta Arjunoarwan Hatta; Irzal Nur; Muhammad Ramli; Aryanti Virtanti Anas; Sri Widodo; Rizki Amalia; Andi Abdi Ibnurus; Muhammad Nur Halis
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 9 No 1 (2026): Environmental-based Awareness for Agile Community Strength
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v9i1.621

Abstract

An understanding of mineral and rock science is a fundamental competency that is critically important for prospective workers in the mining sector, particularly in geology and exploration. However, the main challenge faced by vocational schools is the limited availability of laboratory facilities and learning methods that are still predominantly theory-oriented, resulting in very limited opportunities for students to conduct practical hands-on activities. This condition has the potential to hinder students’ mastery of practical skills in the long term. In response to this issue, lecturers and students from the Department of Mining Engineering at Hasanuddin University carried out a training program that included the delivery of basic material, tutorials on rock description, and mineral identification using 18 rock samples consisting of igneous, sedimentary, and metamorphic rocks. This community service activity was designed to enhance the conceptual understanding and practical skills of 25 students from the Mining Geology Department at SMK Negeri 5 Barru. The effectiveness of the training was evaluated through pre- and post-tests, which indicated an increase in the average score from 52 to 72 on a 100-point scale. As a follow-up, rock samples were handed over to the school to support sustainable learning. This training was proven to improve students’ readiness and practical competence as an important preparation for entering the workforce in the field of mining geology.
Co-Authors Andi Abdi Ibnurus Andi Arumansawang Andi Febby Alvionita Aryanti Virtanti Anas Asta Arjunoarwan Hatta Djamaluddin . Irzal Nur, Irzal Muhammad Nur Halis Muhammad Ramli Nirmana Fiqra Qaidahiyni Nur Alam Fajar Purwanto . Rini Novrianti Sutardjo Tui Rizki Amalia Sri Widodo