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All Journal Jurnal Teknik Sipil Pertahanan Jurnal Dwija Kusuma
Khairul Muslim
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Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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PENGARUH PENAMBAHAN LIMBAH SERBUK KAYU DAN ZAT ADITIF NANO3 TERHADAP KUAT TEKAN DAN TARIK BELAH BETON Ritonga, Achmad Munir; Khairul Muslim; Silitonga, Frangky
JURNAL TEKNIK SIPIL PERTAHANAN Vol. 10 No. 2 (2023): JULI 2023
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jptsp.v10i2.100

Abstract

Waste wood dust in handling still takes a lot of special attention, so that the waste does not pollute the environment. One attempt to utilize the waste sawdust, wood shavings author will mix into the concrete mix. NaNO3 accelerator additives are added to this mixture to help the process of hardening of the concrete. In making specimens using materials include gresik cement, sand from Merapi, gravel, water, sawdust, and additives NaNO3. The tools used for testing concrete is compression machine, the tool is used in the testing of concrete compressive strength test and tensile test concrete sides. From the test results generated value for the average compressive strength of concrete at 3 days with 0%, 3%, 5% respectively sawdust is 9.71 MPa, 3.68 MPa, 1.60 MPa. For the average compressive strength of the concrete life of 7 days with 0%, 3%, 5% respectively sawdust is 12.92 MPa, 6:12 MPa, 3.67 MPa while the average compressive strength of concrete age of 28 consecutive days was 24.90 MPa , 15:37 MPa, 9:52 MPa. For the average value Pull apart the concrete test cube 28 days with sawdust levels of 0%, 3%, 5% is 2.79 MPa, 0.72 MPa, 0:10 MPa. So from these data it is concluded that concrete with a mixture of 3% sawdust can be categorized as a lightweight concrete because it has a specific gravity of less than or equal to 2200 kg / cm 3 and can be used as a non-structural concrete as it has f'c> 15 MPa.
MODEL MANAJEMEN RISIKO DALAM ADMINISTRASI PERTAHANAN: Kajian Literatur Sistematis Terhadap Ancaman Hibrida Dan Non-Militer Khairul Muslim; Taufik, Ahmad
JURNAL DWIJA KUSUMA Vol. 13 No. 2 (2025): SEPTEMBER 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jdk.v13i2.373

Abstract

Defense administration faces complex challenges from hybrid and non-military threats that undermine national defense effectiveness. This study aims to formulate an adaptive risk management model through a systematic literature review of 35 academic articles, policy reports, and international standards. Data were analyzed using content analysis and thematic coding, adopting the ISO 31000:2018 framework and NATO AJP-3.15 doctrine. The findings highlight five key stages of risk management—identification, analysis, evaluation, mitigation, and monitoring—enriched with whole-of-government and whole-of-society principles. The novelty of this research lies in synthesizing international frameworks with Indonesia’s local context, producing a conceptual model of defense administration that is systematic, participatory, and responsive. These findings imply significant contributions for the Ministry of Defense and the Armed Forces in strengthening national defense resilience against multidimensional threats.
Co-Authors Ahmad Taufik Frangky Silitonga Ritonga, Achmad Munir