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All Journal Jurnal Arsitektur KOMPOSISI DIMENSI: Journal of Architecture and Built Environment
Bebhe, Kristiana
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Civil Engineering, Building, Construction & Architecture

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KARAKTERISTIK BATA TANAH PUTIH DENGAN CAMPURAN SEMEN DAN ABU SEKAM PADI Bebhe, Kristiana; Nahak, Valentinus Maria
Jurnal Arsitektur Komposisi Vol 14, No 1 (2020): Jurnal Arsitektur Komposisi
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jars.v14i1.3845

Abstract

This research, which is based on white soil, is a collaborative study of Architechture  Unwira students in the subject matter of Building Materials and Lecturers, to find alternative building materials from local natural potential. Kupang has the potential for rich white soil. Researchers and students think of making direct use of white soil with prints used in printing bricks so that the general public can make it themselves. This manually made white earth brick,we don't add sand because the lab research shows that the white ground of kupang already contains 30-65% sand. While rice husk ash is used because it has a positive influence on the increase in compressive strength / can increase compressive strength, reduce cement usage, and lighter weigh. After going through the testing phase, it turns out that the white ground brick mixed with rice husk ash and cement can reach a maximum compressive strength of 40.32kg / cm² at 7 days and 83.7kg / cm² at 28 days. . his compressive strength is higher than previous studies using clay mixed with cement which reached 39.1 kg / cm² (Bebhe, 2017). In addition, from the measurement of brick weight, it turns out that the brick with a mixture of rice husk has a lighter weight than that which is not added by rice husk.
ADDITIONAL ROOF VENTILATION TO PRODUCE A STACK EFFECT IN UME KBUBU, THE TRADITIONAL HOUSE OF THE ATONI TRIBE Lapenangga, Apridus Kefas; Bebhe, Kristiana; Seli, Marche
Dimensi: Journal of Architecture and Built Environment Vol. 50 No. 1 (2023): JULY 2023
Publisher : Institute of Research and Community Outreach, Petra Christian University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/dimensi.50.1.43-52

Abstract

Indoor air quality affects the health of building users so that every building needs ventilation. The ume kbubu building was built without using ventilation to get warm temperatures in the building but the air quality inside is highly contaminated with carbon dioxide. The addition of roof ventilation is expected to produce a stack effect phenomenon in ume kbubu. The purpose of this research is to measure the level of carbon dioxide in ume kbubu and the speed at which smoke moves out of the building. The method used in this research is computer simulation using CFD software to determine the effectiveness of adding roof ventilation in reducing carbon dioxide levels and simulation without a computer using mock-ups to see the movement of smoke in ume kbubu. The results of this study indicate that the effectiveness of roof ventilation reaches 60% so that the air quality in the ume kbubu room is safer for its users.
Co-Authors Apridus Kefas Lapenangga Nahak, Valentinus Maria Seli, Marche