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All Journal Jurnal Mahasiswa Jurusan Teknik Sipil Rekayasa Sipil
Eva Arifi
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Civil Engineering, Building, Construction & Architecture

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Journal : Rekayasa Sipil

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Pengaruh Void Ratio dan Permeabilitas Beton Terhadap Kuat Tekan Beton Porous dengan RCA Naila Mahdiana; Eva Arifi; Wisnumurti Wisnumurti; Ananda Insan Firdausy
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.9

Abstract

The infrastructure development raises the potential of old building destruction and demolition. This fact will results an environmental damage if construction waste is not being properly utilized. One type of construction waste that can be utilized is concrete waste. To apply sustainable development, concrete waste can be reused and recycled into aggregate in the form of RCA (Recycled Coarse Aggregate). Natural Coarse Aggregates (NCA) and RCA are processed into 0.5-1 cm, 1-2 cm, and 0.5-2 cm sizes and later mixed with cement paste into porous or pervious concrete. Porous concrete is a non-structural concrete which is water-permeable and has large pores. This study aims to determine the effect of RCA on the velue of concrete compressive strength, the most optimal concrete variation, and the influence of void ratio and permeability to the compressive strength of porous concrete. The result reported that RCA affects the compressive strength,, it can be proven that any variation of aggregate size, concrete variation with 0% RCA has the higher value than the 100% RCA one. The optimum concrete condition is in variation of 50% RCA at aggregate size 0.5-2 cm. The compressive strength value is 10.211 MPa. This is due to the more diverse aggregates affecting the concrete density. The larger the pores of the concrete (void ratio), the permeability value will be higher and the higher void ratio and permeability of concrete, the value of the compressive strength of porous concrete will be lower.
Evaluation of Natural Lighting System of Lecture Building Ariska Desy Haryani; Yatnanta Padma Devia; Eva Arifi
Rekayasa Sipil Vol 15, No 3 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Visual comfort is one of the most important things that building need. A building with a proper passive design obtains fulfill the users visual comfort through natural lighting  on the other hand, a passive design that is less precise always requires energy to achieve the users visual comfort. Lecture building is one of the buildings that is effectively used 8 hours a day and 5 days on a week. The high operating hours cause visual comfort in the building becomes very important. The purpose of this study is to determine the performance of the building passive design in terms of lighting  to comprehend various visual problems in the building. The method used in this research is quantitative comparative by comparing the value of  building lighting. Through the results of field measurements, building modeling simulations with Ecotect software, and SNI 03-6197-2000 parameter  several problems were found in the building's natural lighting system such as inadequacy of lighting on the facade with a southwest orientation, enormous lighting on the facade with a northeast orientation, uneven lighting causing various visual discomforts.
Co-Authors Abdul Hakim Al-Jauhari Ibnu Zain Achfas Zacoeb Akmal Bintang Putra Pitono Aldebaran Ananda Insan Firdausy Aninda Afifah Nur Azizah Ari Wibowo Ariska Desy Haryani Bhondana Bayu Brahmana Kridaningrat Bimo Putra Tri Prasetyo Bintang Tri Lolang Barnad Desy Setyowulan Devi Nuralinah Dimas Satria Dwi Putra Dimas Tegar Bayu Wasesa Erwin Naela Sundusi Faisal Rachman Semendawai Farhan Al Farisi Filiani Nabila Nurwulan Indra Waluyohadi Indradi Wijatmiko M.Rizky Reza Muhamad Zulfikar Zakaria Muhammad Riysdi Fadhillah Nabila Rachma Auia Naila Mahdiana Nursila, Aditya Putri Macdha, Fadya Rajagukguk, Juan Rifki Timotius Retno Anggraini Rudianto Siti Nurlina Sugeng P.Budio Syawal Yudha Pratama Thalita Azzah Alifyah Akbar Widiana Maulida wisnumurti Wisnumurti Yatnanta Padma Devia Yoga Hayyananda Cahya