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All Journal Rang Teknik Journal Community Development Journal: Jurnal Pengabdian Masyarakat Construction and Material Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) Civil Engineering Collaboration Jurnal Rivet: Riset dan Invensi Teknologi
Rita Nasmirayanti
Civil Engineering Department, Engineering Faculty, Universitas Putra Indonesia YPTK Padang, Indonesia
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation

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Concrete Compressive Strength of Post Combustion With and Without Watering Rafki Imani; Rita Nasmirayanti; Julio Rendi Akbar
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 4 No. 01 (2023)
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v4i01.4803

Abstract

The strength of the building structure after a fire is determined by the length of time the fire takes place and the cooling process used. According to several previous studies, it is said that the longer the concrete burns, the lower the quality of the concrete will be. This study aims to observe the compressive strength of concrete after the combustion process by cooling through experimental trials on 21 samples of cube model concrete. The concrete sample consisted of three samples of normal concrete and 18 samples of concrete that would be given combustion treatment and the quality of the design concrete was K250. Three samples of normal concrete were tested at the age of 14 days, then 18 samples were prepared for the combustion process with normal fire. A total of nine samples of concrete were treated with combustion for one hour, two hours and three hours with normal cooling in the open air as many as three samples each. Meanwhile, nine other concrete samples that had undergone combustion were given cooling treatment by sprinkling with water. The average compressive strength of concrete with a duration of one hour, two hours and three hours without water cooling respectively is 320.05 kg/cm2, 285.65 kg/cm2 and 235.21 kg/cm2, with the percentage of decrease in the quality of concrete to normal concrete respectively is 9%, 19%, and 33%. Meanwhile, the average compressive strength of concrete with water cooling for the same duration of combustion is 295.72 kg/cm2, 245.34 kg/cm2 and 210.17 kg/cm2, with the percentage of decrease in the quality of concrete to normal concrete respectively is 16%, 30%, and 40%. Based on the results of this study, the duration of combustion and the cooling treatment used can reduce the quality of concrete compared to normal concrete.
RESPON STRUKTUR TERHADAP BEBAN DINAMIK GEMPA PADA RUSUN MAHASISWA INSTITUT TEKNOLOGI PADANG DENGAN SHEARWALL Ibnu Hanif Sudarmaka; Rafki Imani; Rita Nasmirayanti; Kharisma Permata Sari
JURNAL RIVET Vol 3 No 01 (2023): Juni 2023
Publisher : Program Studi Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/rivet.v3i01.1023

Abstract

Rusun Mahasiswa ITP Padang was originally designed without using a shearwall, but in practice, it was changed to using a shearwall with L-frame type. This study aims to analyze the effect of using shearwall on the columns and beams of Rusun Mahasiswa ITP Padang. The results showed that the use of shearwall with L-frame type on columns caused a 3% decrease in the axial force on the column, up to 90% in cross-sectional force, and up to 84% in moment load reduction. Meanwhile, the beam elements can reduce the shear force by up to 24%, and the moment load can be reduced by up to 35%. The deviation between floors in Rususn Mahasiswa ITP Padang has met the required limit, where the deviation values for the x direction (Δx) and y direction (Δy) are smaller than the permit deviation (Va).
GERAKAN PEDULI LINGKUNGAN DALAM KONSEP JAGA ALAM BERSAMA KPS PELANGI ALIRAN SUNGAI BATANG JIRAK MELALUI KEGIATAN PENANAMAN POHON Kharisma Permata Sari; Afrilda Sari; Utami Dewi Arman; Nadra Arsyad; Rita Nasmirayanti; Lili Leilany; Mediana Desfita; Mutiara Yetrina; Susriyati Susriyati; Rina Sepriana
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 6 No. 3 (2025): Volume 6 No 3 Tahun 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v6i3.47467

Abstract

Pentingnya peran masyarakat dalam menciptakan dan menjaga kelestarian sungai sangat berpengaruh baik terhadap lingkungan alam maupun pada kehidupan masyarakat. Diperlukan adanya kesadaran dari masyarakat terhadap masalah pencemaran sungai, menciptakan perilaku dan gerakan dari dalam diri masyarakat untuk berupaya sedemikian rupa melakukan konservasi sungai. Dalam upayanya melakukan konservasi sungai, masyarakat di wilayah bantaran aliran sungai Batang Jirak di Kecamatan Lubuk Begalung  yang tergabung dalam Komunitas Masyarakat Peduli Sungai Pelangi (KSP Pelangi) membentuk sebuah gerakan yang bertujuan untuk melakukan konservasi sungai dan menjaga kelestarian sungai, namun di sisi lain juga dapat dimanfaatkan sumber daya yang ada di sungai tersebut untuk kebutuhan masyarakat sekitar. Pada pelaksanaan kegiatan pengabdian kepada masyarakat tim dosen fakultas teknik UPI’YPTK’ Padang  ini digunakan metode pendekatan partisipatif Masyarakat melalui komunitas KSP Pelangi untuk melalukan diskusi proaktif dalam upaya peningkatan kesadaran penuh masyarakat terhadap lingkungan dan menganalisis potensi ekonomi dan juga pemanfaatan lainnya terhadap impact positif dari kegiatan peduli lingkungan.Dimulai dengan mensosialisasikan kepada masyarakat dan dan melakukan upaya konservasi sungai seperti pemanfaatan, perlindungan, dan pemeliharaan sungai secara berkala supaya sungai mampu sustainable di masa mendatang.
Co-Authors Afrilda Sari Afrilda Sari Anggara Yunanda Asri Yuda Trinanda Deded Eka Sahputra Dimas Wicahyadi Fakhru Rozi Fitri, Meldia Ibnu Hanif Sudarmaka Ilham Novian Imani, Rafki Jihan Melasari Julio Rendi Akbar Kahfi Al Fajri Muis Kharisma Permata Sari Kharisma Permata Sari Lili Leilany Maiyozzi Chairi Maulana Ishaq Mediana Desfita Mutiara Yetrina Nadra Arsyad Rina Sepriana Susriyati Susriyati Tedy Wiraseptya Utami Dewi Arman Utami Dewi Arman