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All Journal Jurnal Kridatama Sains dan Teknologi Journal of Biology, Environment, and Edu-Tourism
Irama, Ade
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Other

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Karakteristik Mortar Komposit Dengan Penambahan Arang Aktif Sadir, Muhammad; Mirawati, Baiq; Wangiyana, I Gde Adi Suryawan; Hendriko, Albert; Irama, Ade; Hidayah, Zoya Saharani; Hafiz, Yusron
Jurnal Kridatama Sains dan Teknologi Vol 7 No 01 (2025): Jurnal Kridatama Sains dan Teknologi
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v7i01.1561

Abstract

The addition of activated charcoal to the cement matrix can increase the density and durability of the mortar. The purpose of this study was to analyze the effect of activated charcoal on the characteristics of composite mortar including compressive strength, density, and water absorption. Making mortar composite with the composition of activated charcoal to the weight of cement (1%, 2%, 3%, 4%, and 5%), the ratio of cement and sand is 1: 3. The composition will be tested and analyzed for its effect on the compressive strength, density, and water absorption of mortar composite. The results showed that the addition of activated charcoal did not have a significant effect on the characteristics of mortar composite, except for the setting density. The addition of activated charcoal by 5% showed an optimal composition with a compressive strength value of 11.67 MPa, a setting density of 2092.91 kg / m3, an oven-dry density of 1853.93 kg / m3, and a water absorption of 15.20%
Analysis of Ecotourism-Based Science Learning Materials: A Case Study of Tourism in Pemepek Village Muliadi, Irman; Irama, Ade; Zana, M. Zannatun Naeem
Journal of Biology, Environment, and Edu-Tourism Vol. 2 No. 1 (2026): April 2026
Publisher : Yayasan Siti Widhatul Faeha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65622/jbee.v2i1.258

Abstract

Despite the growing recognition of ecotourism as an educational resource, the systematic integration of local sites into formal science curricula remains underexplored in rural Indonesian contexts. This study analyzes the potential of three ecotourism destinations in Pemepek Village, Central Lombok: Lembah Datu, Pindah Alam, and Forest Area with Special Purpose (FAWSP) Rarung, or KHDTK Rarung, as contextual science learning materials for elementary and junior high school levels. Employing a qualitative descriptive approach, the research used field observations and science concept rubrics to identify educational themes and analyzed the data using the Miles and Huberman interactive model. The findings reveal that each site offers distinct scientific content: Lembah Datu provides insights into riparian ecosystems and simple machines; Pindah Alam facilitates learning on the hydrological cycle, hydrostatic pressure, and renewable energy; and KHDTK Rarung supports the study of biodiversity, symbiosis, and biotechnology. Collectively, these destinations function as "nature laboratories" that bridge abstract scientific theory with real-world observation. By synthesizing these findings, the research contributes an ethnoscience-based framework that guides educators in developing innovative, place-based curriculum strategies. Ultimately, this study demonstrates how local ecotourism can be transformed into a pedagogical tool to enhance scientific literacy through direct environmental engagement.
Co-Authors Hafiz, Yusron Hendriko, Albert Hidayah, Zoya Saharani Mirawati, Baiq Muliadi, Irman Sadir, Muhammad Wangiyana, I Gde Adi Suryawan Zana, M. Zannatun Naeem