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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Spektra: Jurnal Fisika dan Aplikasinya Jurnal Rekayasa Konstruksi Mekanika Sipil JURNAL SUMBER DAYA AIR Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan JMTS: Jurnal Mitra Teknik Sipil Jurnal Bakti Masyarakat Indonesia Prosiding Seri Seminar Nasional Jurnal Serina Abdimas
Widodo Kushartomo, Widodo
Universitas Tarumanagara
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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ANALISIS PENGGUNAAN POLIAMIDA PADA RPC UNTUK MENINGKATKAN KETAHANAN TERHADAP TEMPERATUR Kushartomo, Widodo; John, Tory
JMTS: Jurnal Mitra Teknik Sipil Volume 7, Nomor 2, Mei 2024
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v7i2.28036

Abstract

Concrete is a very important material to be applied in the world of construction, especially in Indonesia. An idea that can be useful for making normal concrete is to use additional materials in the form of polyamide. By adding polyamide to concrete, it is hoped that it can make the concrete resistant to high temperatures. The experiment carried out in this research was to burn concrete that had been mixed with polyamide with a polyamide content percentage of 0%, 0.02%, 0.04% and 0.06% of the cement. Compressive testing and flexural testing were also carried out in this research. The test sample treatment was carried out using the evaporation technique. Experimental results show that the use of polyamide fiber can help prevent spalling in concrete. Using too much polyamide fiber can cause a decrease in the strength value of the concrete. The optimal use of fiber in this research was 0.04% because it obtained the highest strength value. Abstrak Beton merupakan suatu material yang sangat penting untuk diaplikasikan dalam dunia konstruksi terutama Indonesia. Suatu ide yang dapat bermanfaat untuk membuat beton normal adalah dengan menggunakan bahan tambahan berupa Poliamida. Dengan ditambahkannya poliamida pada pembuatan beton maka diharapkan dapat membuat beton tersebut tahan terhadap temperatur yang tinggi. Percobaan yang dilakukan pada penelitian ini adalah dengan membakar beton yang telah tercampur oleh poliamida dengan persentase kandungan poliamida sebesar 0%, 0,02%, 0,04%, dan 0,06% dari semen. Pengujian tekan dan pengujian lentur juga dilakukan pada penelitian ini. Perawatan sampel penguji dilakukan dengan Teknik penguapan. Hasil percobaan menunjukkan bahwa penggunaan serat poliamida dapat membantu mencegah terjadinya spalling pada beton. Penggunaan serat poliamida yang terlalu banyak dapat menyebabkan penurunan nilai kekuatan dari beton. Penggunaan serat paling optimal dalam penelitian ini adalah sebanyak 0,04% karena memperoleh nilai kekuatan yang paling tinggi.
CONSTRAINTS IN THE RECYCLED WASTEWATER UTILIZATION IN AN OFFICE BUILDING IN JAKARTA Kurniawan, Vittorio; Kushartomo, Widodo; Yolanda, Yolanda
JURNAL SUMBER DAYA AIR Vol 20, No 1 (2024)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v20i1.879

Abstract

 The threat of water scarcity and the progressing technology in sewage treatment plants promote the reuse of recycled wastewater. While the practice itself is beneficial, there are still issues to be solved to utilize its full potential. This study focuses on identifying the bottlenecks or limiting factors in implementing the practice on a building scale. An office building was researched to reveal its water usage pattern. The building introduces a sewage treatment plant so the sewage can be recycled into usable freshwater. The analysis indicates the produced recycled wastewater has not been fully utilized until now. While the volume of the water demand is greater than the recycled wastewater, several factors hinder the total utilization of the reclaimed water. The recycled wastewater is mostly more than enough to cover the water usage for both gardening and toilet flushing, the usages still leave an excess of water for other purposes. Because of the constraints in water quality, finance, and public reception, the excess reclaimed water is yet to be optimally utilized. Firstly, the quality of the reclaimed water is not very convincing to be used for non-flushing human usage and cooling towers. Secondly, the high cost of the investment and the overhaul of the plumbing system (for old buildings) deters the practice of reusing the reclaimed water. Thirdly, many people still have terrible perceptions about reused wastewater thus they would hesitate to utilize it even if the reused water is technically fine.  Keywords: recycled wastewater, sewage treatment plant, office building, water conservation, rainwater harvesting 
PELAT PANEL REACTIVE POWDER CONCRETE SEBAGAI LANDASAN PERALATAN PERMAINAN ANAK Kushartomo, Widodo; Andryanto, Jonathan; Aaron, Jonathan; Carolina, Octavia
Jurnal Serina Abdimas Vol 1 No 1 (2023): Jurnal Serina Abdimas
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jsa.v1i1.23841

Abstract

Reactive Powder Concrete (RPC) is a material that has excellent mechanical properties. From various studies that have been carried out, it shows excellent mechanical properties, namely the compressive strength can reach 200 MPa and fracture toughness can reach above 30 MPa. The enormous compressive and flexural strength allows RPC to be used in various building structural elements such as beams, columns or plates or other uses. RPC is able to answer the challenges of the building construction industry to create very tall buildings and very long spans. With enormous power, the RPC can be designed in a slim way so that it can reduce its own burden very significantly. The research team of the Undergraduate Civil Engineering Study Program, Tarumanagara University, has developed RPC technology and is able to produce compressive strengths above 150 MPa and fracture toughness reaching above 30 MPa. The research team is also developing RPC applications in various applications such as retrofitting, bamboo joints and so on. The PkM team for the Civil Engineering Undergraduate Study Program, Tarumanagara University partnered with residents of RW 07, Banjar Wijaya Housing, Cipete Village, Pinang District, Tangerang City. Partners have problems placing children's play equipment in the form of swings, slides and monkey bars on a thin but strong platform. Based on the residents' difficulties in making a thin but strong foundation, the PkM team of the Department of Civil Engineering at Tarumanagara University used RPC technology to make panel plates as the basis for thin and strong children's play equipment. Reactive Powder Concrete (RPC) merupakan material yang mempunyai sifat mekanik sangat baik. Dari berbagai penelitian yang telah dilakukan menunjukkan sifat mekanis yang sangat baik yaitu kekuatan tekan mampu mencapai 200 MPa dan fracture toughness mampu mencapai diatas 30 MPa. Kekuatan tekan dan lentur sangat besar tersebut memungkinkan RPC digunakan dalam berbagai elemen struktur bangunan seperti sebagai balok, kolom ataupun pelat atau penggunaan lainnya. RPC mampu menjawab tantangan industri konstruksi bangunan untuk membuat bangunan yang sangat tinggi dan bentang yang sangat Panjang. Dengan kekuatan sangat besar RPC dapat didesain dengan ramping sehingga mampu mengurangi bebannya sendiri dengan sangat signifikan. Tim peneliti Program Studi Sarjana Teknik Sipil Universitas Tarumanagara, telah mengembangkan teknologi RPC dan mampu menghasilkan kekuatan tekan di atas 150 MPa dan fracture toughness mencapai di atas 30 MPa. Tim peneliti juga mengembangkan aplikasi RPC pada berbagai penggunaan seperti retrofit, sambungan bambu dan sebagainya. Tim PkM Program Studi Sarjana Teknik Sipil Universitas Tarumanagara bermitra dengan warga RW 07 Perumahan Banjar Wijaya Kelurahan Cipete Kecamatan Pinang Kota Tangerang. Mitra mengalami kendala menempatkan peralatan permainan anak berupa ayunan, seluncuran dan monkey bar pada landasan yang tipis namun kuat. Berdasarkan kesulitan warga untuk membuat landasan yang tipis namun kuat, tim PkM Jurusan Teknik Sipil Universitas Tarumanagara menggunakan teknologi RPC untuk membuat plat panel sebagai landasan peralatan permainan anak yang tipis dan kuat.
PENGGUNAAN PANEL RINGAN UNTUK PAGAR PEMBATAS LINGKUNGAN PERUMAHAN BANJAR WIJAYA RW 07 KELURAHAN CIPETE, KECAMATAN PINANG, KOTA TANGERANG Kushartomo, Widodo; Hauwendy; Boenyamis, Michael Silvester; Tanurahardja, Edward Mahendra; Christopher
Jurnal Serina Abdimas Vol 2 No 1 (2024): Jurnal Serina Abdimas
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jsa.v2i1.29207

Abstract

Concrete panel fences installed at locations aim to limit land ownership from one another, provide visual protection for the object being fenced and provide a feeling of security to the land owner. The Banjar Wijaya housing complex, especially RW 07, Cipete Village, Pinang District, Tangerang City borders residential areas which are separated by concrete panel fences. The guardrail that divides the RW 07 neighborhood from residents is approximately 500 m long. In several locations of the guardrail, there was damage to the fence, such as broken, missing and holes. Residents' difficulties in finding cheap quality concrete panel fences in the sense of being strong and light, can be overcome by using lightweight concrete panels which are the result of research from the Concrete Construction and Technology Laboratory of Tarumanagara University's Civil Engineering Undergraduate Study Program. The PkM Team from Tarumanagara University's Civil Engineering Undergraduate Study Program guided the manufacture of lightweight concrete panel prototypes which can then be carried out by the community themselves. The implementation of PkM activities was carried out together with the local community, which included preparation for making light panels and installing them.
Co-Authors Aaron, Jonathan Agustinus Eppendie Alberto Pandapotan Habeahan Alfredo Samuel Andryanto, Jonathan Andy Prabowo Anissa Noor Tajudin, Anissa Noor Anthony Wisselly Arif Sandjaya Arles Octavianus Sintiawan Boenyamis, Michael Silvester Bramantyo Dipo Harsono Brian Mamahit Carlos Chandra Carolina, Octavia Chaidir Anwar Makarim Chaidir Anwar Makarim, Chaidir Anwar Charles Brianjaya Christian, Marco Christopher Christopher Kevin Sidharta Daniel Christianto Dewi Permata Sari Evert, Ezra FX. Supartono FX. Supartono, FX. Hauwendy Henny Wiyanto Hernandez, Hizkia Hokbyan Angkat Jenny Suryani John, Tory Jonathan Aaron Jonathan Andryanto Kevin KURNIAWAN, RIVALDO Kurniawan, Vittorio Leksmono Suryo Putranto Linggasari, Dewi Linggasari, Dewi Marco Christian Najid Najid Ni Luh Putu Shinta Eka Setyarini Octa Rianto Octavia Carolina Owen, Frigion Prem Singh Saputra, Stanley Jourdan Saputra, Stenley Jordan Seehan Kuo Setyarini, Ni Luh Shinta Eka Sugandar Sumawiganda Sugandar Sumawiganda, Sugandar Suryana, Laurensius Evan Suryani, Jenny Sutandi, Arianti Sutandi, Arianti Tanurahardja, Edward Mahendra Varian, Mikhael Wijaya, Jevin Wildan, Vanessa Adistya William, Lie Jorge Yolanda Yolanda, Yolanda Yosafat Kurnia Adi Zahwa Nur Raudah