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All Journal Journal of Computer Science and Information Technology Indonesian Journal of Engineering (IJE)
Aswaldi, Haikal
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Computer Science & IT Engineering

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Penerapan Teknologi Internet of Things (IoT) untuk Monitoring Kualitas Udara dalam Ruangan Aswaldi, Haikal
Journal of Computer Science and Information Technology Vol. 1 No. 2 (2025): Journal of Computer Science and Information Technology, September 2025
Publisher : Lembaga Publikasi Ilmiah Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70716/jocsit.v1i2.255

Abstract

Indoor air quality plays a crucial role in the health and comfort of occupants, especially in enclosed environments such as homes, offices, and public spaces. Decreased air quality can lead to various health problems, including allergies, respiratory problems, and decreased work productivity. With the advancement of technology, the Internet of Things (IoT) has become an innovative solution for real-time air quality monitoring. This research aims to design and implement an IoT-based air quality monitoring system capable of detecting environmental parameters such as temperature, humidity, carbon dioxide (CO₂) concentration, and dust particles (PM2.5). This system consists of environmental sensors integrated with a microcontroller and connected to a cloud platform for online data storage and visualization. Test results show that the system can provide accurate data and is responsive to changes in air conditions. The system is also equipped with an automatic notification feature that alerts users when air quality decreases below normal thresholds. With this approach, users can take early preventative measures against health risks caused by exposure to polluted air. This research shows that the application of IoT in air quality monitoring is very effective and can be applied on a household and commercial scale.
Pengembangan Beton Ramah Lingkungan Berbasis Limbah Industri Untuk Meningkatkan Kinerja Dan Keberlanjutan Struktur Hidayat, Rahmat; Aswaldi, Haikal; Kurniawan, Heru
Indonesian Journal of Engineering (IJE) Vol. 6 No. 2 (2026): Edisi Maret
Publisher : Fakultas Teknik Universitas Nahdlatul Ulama Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69503/ije.v6i2.1627

Abstract

Penelitian ini bertujuan mengembangkan beton ramah lingkungan berbasis limbah industri serta mengevaluasi pengaruhnya terhadap kinerja mekanik, durabilitas, dan keberlanjutan lingkungan. Material limbah meliputi fly ash, ground granulated blast furnace slag (GGBS), silica fume, waste glass powder, dan copper slag sebagai substitusi sebagian semen Portland. Metode menggunakan pendekatan eksperimental laboratorium dengan variasi substitusi 0%–30% serta pengujian pada beton segar dan beton keras. Parameter uji mencakup workability, kuat tekan, kuat tarik belah, kuat lentur, permeabilitas air, penetrasi klorida, serta ketahanan terhadap lingkungan agresif. Analisis keberlanjutan dilakukan melalui estimasi emisi karbon dioksida dan konsumsi energi. Hasil menunjukkan bahwa pemanfaatan limbah industri meningkatkan kinerja beton pada kadar substitusi tertentu. Kuat tekan meningkat signifikan pada variasi menengah akibat reaksi pozzolanik dan densifikasi struktur mikro. Peningkatan juga terjadi pada kuat tarik dan kuat lentur melalui kombinasi material yang optimal. Durabilitas meningkat melalui penurunan permeabilitas serta peningkatan ketahanan terhadap ion klorida dan serangan kimia. Dari sisi lingkungan, substitusi semen menurunkan emisi karbon dan konsumsi energi secara signifikan. Komposisi optimum berada pada rentang substitusi menengah yang memberikan keseimbangan terbaik antara kekuatan, ketahanan, dan dampak lingkungan. Penelitian ini menegaskan beton limbah sebagai solusi konstruksi berkelanjutan.
Co-Authors Heru Kurniawan Rahmat Hidayat