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PENGARUH PENAMBAHAN LIMBAH ABU BATU TERHADAP KUAT BETON Fc’20 Mpa DENGAN MENGGUNAKAN GRADASI SPLIT BERBEDA Asrullah, Asrullah; Irwansyah, Cecep; Mupli, Mupli
Jurnal Teknik Sipil Vol 10 No 2 (2020): Jurnal Teknik Sipil
Publisher : Civil Engineering Study Program Faculty of Engineering, University of Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.049 KB) | DOI: 10.36546/tekniksipil.v10i2.483

Abstract

Industri beton di Indonesia sudah sangat maju dan berkembang. Maka penggunaan material konstruksi menjadi semakin meningkat. Dibutuhkan material lain sebagai pengganti agregat halus untuk pembuatan beton. Salah satu bahan yang dapat digunakan adalah abu batu yang berasal dari limbah industri batu belah. Metode yang digunakan dala desain campuran beton menggunakan SNI 03-2834-2000. Tujuan dari penelitian ini untuk mengetahui nilai kuat tekan beton normal, beton, nilai kuat tekan beton dengan penambahan Abu Batu 1%,2% dan 3% dari berat pasir. Nilai kuat tekan beton Normal sebesar 20,4 MPa memenuhi standar perencanaan yaitu 20 MPa. Nilai kuat tekan beton dengan penambahan abu batu 1% sebesar 22,4 MPa, nilai kuat tekan beton dengan penambahan abu batu 2% sebesar 23,3 MPa dan nilai kuat tekan beton dengan penambahan abu batu 3% sebesar 24,8 MPa. The concrete industry in Indonesia is very advanced and growing. So the use of construction materials is increasing. Other materials are needed as a substitute for fine aggregate for the manufacture of concrete. One of the materials that can be used is stone ash that comes from the waste stone industry. The method used in the design of concrete mix using SNI 03-2834-2000. The purpose of this study was to determine the compressive strength of normal concrete, concrete, the value of the compressive strength of concrete with the addition of 1%,2% and 3% of stone ash by weight of sand. Normal concrete compressive strength value of 20.4 MPa meets the planning standard of 20 MPa. The value of the compressive strength of concrete with the addition of 1% stone ash is 22.4 MPa, the value of the compressive strength of concrete with the addition of 2% stone ash is 23.3 MPa and the compressive strength value of concrete with the addition of 3% rock ash is 24.8 MPa.
Analisis Framing Tempo.co Terhadap Kontroversi Proyek Strategi Nasional PIK 2 Irwansyah, Cecep; Soekowati, Gede Moenanto; Nasirin, Anas Anwar
Jurnal Audiens Vol. 6 No. 4 (2025): Desember
Publisher : Universitas Muhammdiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jas.v6i4.591

Abstract

This study aims to analyze the framing of media coverage by Tempo.co regarding the controversy surrounding the development of Pantai Indah Kapuk (PIK) 2, which has been associated with the status of a National Strategic Project (Proyek Strategis Nasional or PSN). The research adopts a qualitative approach using Robert N. Entman’s framing analysis model, which includes four key elements: define problems, diagnose causes, make moral judgments, and treatment recommendations. The study focuses on four news articles published by Tempo.co on January 5, 8, 13, and 18, 2025. The findings reveal that although the reports highlight significant issues such as social inequality, environmental degradation, and spatial planning conflicts, Tempo.co tends to adopt a cautious stance in criticizing the government. The narratives primarily emphasize statements from political elites and government officials, often avoiding direct confrontation. The statement by the Coordinating Minister for Economic Affairs clarifying that PIK 2 is not a PSN further illustrates the lack of transparency in public information. These findings indicate that the media has not fully exercised its social control function. Therefore, it is crucial for the press to be more courageous in voicing social justice, especially when public aspirations are suppressed through legal mechanisms.