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Dewantoro, Fajar
Universitas Teknokrat Indonesia
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

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Analisis Kepuasan Penghuni Terhadap Kualitas Bangunan dan Prasarana Perumahan Menggunakan Metode CSI dan IPA Ayu Diah Nastiti; Fajar Dewantoro; Destiana Safitri
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2298

Abstract

The need for decent housing in Indonesia increases along with population growth, but the subsidized housing program still faces infrastructure problems that affect occupant satisfaction. This study analyzes the satisfaction of occupants of the Pane Residence 99 Housing using the Customer Satisfaction Index (CSI) and Importance Performance Analysis (IPA) methods. A descriptive quantitative approach was applied with a sample of 52 respondents through a Likert Scale questionnaire. The results showed a satisfaction index of 59.42% (quite satisfied). The IPA analysis revealed that 42.11% of attributes fell into Quadrant A (priority for improvement), such as drainage, clean water, health facilities, and roof-ceiling quality. As many as 10.53% of attributes fell into Quadrant B (maintain), such as road conditions and worship facilities. Recommendations include routine repairs to infrastructure and improving building quality. This study provides input for developers and the government to improve the effectiveness of the subsidized housing program.
Pengaruh Penambahan Serat Bambu terhadap Kuat Tekan Beton Valentinus Wenang Trisno Jati; Destiana Safitri; Fajar Dewantoro
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2477

Abstract

Fiber concrete is an innovation in concrete technology that utilizes additional materials in the form of natural or synthetic fibers to improve its mechanical characteristics, such as tensile strength, crack resistance, and ductility. In this study, K150 grade concrete was used with four variations of bamboo fiber addition: 0% (as a control), 0.5%, 1%, 1.5%, and 2% by weight of cement. Compressive strength tests were conducted at 14 and 28 days. The results showed that the addition of bamboo fibers consistently increased the compressive strength of the concrete. This increase was associated with better bonding between the aggregate and cement paste, which increased the density and strength of the material. At 14 days, concrete without fiber achieved a compressive strength of 10.57 N/mm², while concrete with 2% bamboo fiber achieved 15.94 N/mm². At 28 days, the respective values were 12.91 N/mm² and 17.85 N/mm². The average increase was 26.15% compared to the control concrete. Further research is recommended to explore higher fiber content and the use of various types of bamboo to evaluate the comparison of compressive strength performance. This study contributes to the development of environmentally friendly concrete by utilizing sustainable local materials.
Co-Authors Agus Widodo Auliya R. Isnain Ayu Diah Nastiti Bagas Ubaidi Destiana Safitri Dian Pratiwi Dian Pratiwi Dian Pratiwi Eddy Prianto Edwin Russel Felix Asi Tupado Sihaloho Fera Lestari Galuh Pramita Galuh Pramita Heni Sulistiani Jupriyadi, Jupriyadi M. Sholahuddin Al-Ayyubi Mega Ayu Lestari Muhaqiqin muhaqiqin Ria Oktaviani Sinia Rio Aditomo Mahardika Putra Rio Aditomo Mahardika Putra Sihol Pardomuan Tambunan Ti'in Amirul Zanis Tri Darma Rosmala Sari Valentinus Wenang Trisno Jati Vanita Kesumawati Yakub Wahyu Setia Budi