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All Journal Jurnal Permukiman International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET)
Yunita Idris
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Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education

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Pemanfaatan Bakteri Ureolitik Pada Beton Mutu Tinggi Untuk Menutup Keretakan Akibat Kuat Tekan Khair, M. Nuril; Teuku Budi Aulia; Yunita Idris
Jurnal Permukiman Vol 19 No 2 (2024)
Publisher : Direktorat Bina Teknik Bangunan Gedung dan Penyehatan Lingkungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31815/jp.2024.19.98-106

Abstract

High quality concrete is the primary choice for handling compressive loads in complex building structures such as tall buildings, bridges, dams, and ports. High pressure on high-quality concrete can lead to brittleness and cracking. One solution to improve cracking is by adding bacteria that can produce minerals through microbial processes. This research utilizes ureolytic bacteria, namely the genus Staphylococcus (BSC), Bacillus (BB), and Solibacillus (BBB). Each genus of bacteria was tested with variations of 0.5%, 0.6%, and 0.7%, with 5 test specimens for each variation and 3 control specimens, totaling 48 test specimens. After treatment for 7 days, the test specimens were subjected to a load to induce cracking of 26 MPa. After the cracks formed, observations of calcite growth were made for 7 consecutive days over 28 days. The highest average compressive strength of concrete was found in the BB variation (0.6%). The best calcite growth occurred at the 0.6% variation for Solibacillus genus (BBB1), the 0.6% and 0.5% variations for Bacillus genus (BB1), and the 0.5% variation for Staphylococcus genus (BSC1). FTIR analysis indicates that the test specimens with Bacillus bacteria at the 0.6% variation (BB1) and Solibacillus at the 0.6% variation (BBB1) exhibited high infrared light absorption, while the test specimens with Staphylococcus at the 0.5% variation (BSC1) showed lower light absorption. This demonstrates the better performance of those samplesTop of Form.
TEMPORARY RESIDENTIAL DESIGN ANALYSIS TYPE OF HEX HOUSE FOR DISASTER SURVIVAL IN INDONESIA Awaluddin Azril; Mirza Irwansyah; Yunita Idris
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 2 No. 1 (2022): DECEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v2i1.104

Abstract

Temporary shelter (huntara) is an effort to fulfill basic human needs for survivors after a disaster. Shelters aim to provide protection with dignity, a sense of security and comfort, fulfillment of social needs, and easy access to finding a livelihood. The research object refers to the Hex House Type shelter design. This study aims to determine the feasibility standard indicators that are met by the design. Design feasibility indicators are measured through the “six key eligibility criteria” approach based on the concept formulation of Jo Da Silva and C.Crook. The research method uses a qualitative approach with descriptive analysis. Data sourced from document review. The results obtained, the Hex House design in general meets the indicators to be implemented in Indonesia.
Co-Authors Awaluddin Azril Khair, M. Nuril Mirza Irwansyah Teuku Budi Aulia