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Aulia Rachman
Universitas Malikussaleh, Aceh Utara
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Assessment of the Condition of Emergency Building and Intensive Care of Meuraxa Hospital Based on Mantenance Cost Analysis Khairul Amna; Cut Zukhrina Oktaviani; Ammar Fadhil; Aulia Rachman; Muhammad Azhari; Liza Afra
Electronic Journal of Education, Social Economics and Technology Vol 6, No 2 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i2.1078

Abstract

Rumah Sakit Umum Daerah (RSUD) Meuraxa in Mibo is a Badan Layanan Umum Daerah (BLUD). Meuraxa Hospital is obliged to provide comfort and safety for patients. As a BLUD, almost all of its operational costs are sourced from the hospital's own revenue. The hospital building has a variety of ages, and the oldest has been operating for more than 17 years. Therefore, the reliability of the building began to decrease, and there were even building components in a damaged state. Even so, the standardization of hospital performance indicators in 2019 requires that hospital facilities and infrastructure are always in 100% condition. This can be realized by building buildings according to standards and carrying out building maintenance periodically/routinely.  Determining the extent of building damage in compliance with norms and regulations is the aim of the investigation (Peraturan Menteri Pekerjaan Umum Nomor: 24/PRT/M/2008). The method used is to conduct a field observation of building damage. The results of observation of the existing condition of emergency and intensive service building infrastructure obtained a building damage intensity of 1.32%. This condition is included in the category of light maintenance, which is ≤ 35% of the cost of building a new one. Damage is predominant to non-structural components.
The Effect of Fly Ash Nagan Raya on Geopolymer Mortar Aulia Rachman; Amir Fauzi; Muhammad Azhari; Khairul Amna; Mhd. Arief Diana; Lidya Rosnita
Electronic Journal of Education, Social Economics and Technology Vol 6, No 2 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i2.1069

Abstract

Industrial waste containing silica (Si), alumina (Al), and calcium (Ca) has potential as an alternative binder in concrete. These compounds form C-S-H and C-A-H gels in water-based systems, or Si-O-Si, Si-O-Al, N-A-S-H, and C-A-S-H gels in alkali-based geopolymer systems, enhancing strength and influencing setting time. One example is investigate FA from Nagan Raya (FANR) Coal-Fired Power Plantation in Aceh. This study evaluates its performance in geopolymer mortar through chemical and mechanical analysis. FANR is rich in Si and Al, improving mortar strength, while Ca content affects binding time. XRD analysis revealed crystalline phases in FANR and geopolymer binders, resulting in low reactivity. SEM analysis showed spherical particles with foggy surfaces, differing from typical glassy fly ash, which influences workability and alkali absorption. Mortar tests indicated the best performance at 8M NaOH and a Na₂SiO₃/NaOH ratio of 3.0, achieving 18.30 MPa compressive strength at 28 days. Higher alkali concentrations increased viscosity, reducing workability and final strength. Overall, FANR shows promise as a geopolymer binder with proper optimization of activator ratios.
The Impact of Replacing Cement with a Mixture of Rice Husk Ash and Bagasse Ash on the Compressive Strength of High-Performance Concrete Muhammad Azhari; Muttaqin Hasan; Aulia Rachman; Khirul Amna; Rafiqa Muhnita Yusputri; Vreslisawati Sagala
Electronic Journal of Education, Social Economics and Technology Vol 6, No 2 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i2.1077

Abstract

Bagasse ash and rice husk ash are quite smooth and have high active silica content. This forms the basis for using these ashes as substitutes for cement. In addition to being easy to find, the use of bagasse ash and rice husk ash waste is also a recent innovation to realize environmentally friendly building material technology. The purpose of this research is to determine the effect of using a combination of bagasse ash and rice husk ash as a cement substitute based on compressive strength and to compare the results with previous research.  Portland cement, fine aggregate, coarse aggregate, water, superplasticizer, and a mixture of bagasse ash and rice husk ash are the materials utilized in this study as a cement replacement. The proportion variations are 0%, 5%, 10%, and 15% of the cement volume. The results of this study indicate that varying the percentage of this ash combination as a cement substitute affects the compressive strength of high-quality concrete. The most optimal compressive test results at the ages of 28 and 56 days were obtained with the 5% variation. This experienced an increase of 14.49% and 22.92% from the control concrete.
Co-Authors Amir Fauzi Ammar Fadhil Cut Zukhrina Oktaviani Khairul Amna Khirul Amna Lidya Rosnita Liza Afra Mhd. Arief Diana Muhammad Azhari Muttaqin Hasan Rafiqa Muhnita Yusputri Vreslisawati Sagala