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All Journal Jurnal Ilmiah Poli Rekayasa Jurnal Ilmiah Rekayasa Sipil Jurnal Pustaka Mitra : Pusat Akses Kajian Mengabdi Terhadap Masyarakat Jurnal Jalan Jembatan
Suhelmidawati, Etri
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Civil Engineering, Building, Construction & Architecture Education Languange, Linguistic, Communication & Media Library & Information Science Public Health Social Sciences Other

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Penyuluhan dan Pelatihan Mitigasi Bencana Gempa dan Kebakaran di SMAN 15 Padang Suhelmidawati, Etri; Guspari, Oni; Hadi, Ronal; Syofiardi, Syofiardi; Faizi, Abel Ardhya
Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat) Vol 4 No 2 (2024): Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat)
Publisher : Pustaka Galeri Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55382/jurnalpustakamitra.v4i2.704

Abstract

Berdasarkan lokasi geografis Indonesia yang diapit oleh dua lempeng aktif dunia menjadikan Indonesia sebagai salah satu negara rawan gempa. Disisi lain, kondisi cuaca yang sering panas dan letak bangunan yang berdekatan sangat memungkinkan untuk terjadinya bencana kebakaran. Oleh karena itu, Tim Pengabdi Teknik Sipil Politeknik Negeri Padang telah melakukan pengabdian masyarakat pada tanggal 23 Agustus 2023 di SMAN 15 Padang, Sumatera Barat. Tujuan kegiatan ini adalah memberikan penyuluhan dan pelatihan lansung tentang mitigasi bencana gempa dan kebakaran, serta mampu membantu masyarakat untuk mendapatkan solusi terhadap permasalahan dalam bidang mitigasi bencana terutama mengenai kesiapsiagaan. Metode pelaksanaan kegiatan diawali dengan memberikan penyuluhan mengenai mitigasi bencana gempa dan kebakaran kemudian demonstrasi lansung tentang pemakaian Alat Pemadam Api Ringan (APAR). Target luaran dari kegiatan pengabdian masyarakat ini adalah adanya peningkatan pemberdayaan masyarakat melalui pelatihan dan praktek lansung mitigasi bencana.
PENGGUNAAN PASIR DAN KERIKIL SILIKA DARI SISA PENAMBANGAN BATU KAPUR SEBAGAI SUBSTITUSI AGREGAT UNTUK PERKERASAN JALAN KAKU Suhelmidawati, Etri; Yaldi, Gusri; Mirani, Zulfira; Yufajri, Fahmiza; Ikhsan, Muhammad
Jurnal Jalan Jembatan Vol 40 No 1 (2023)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58499/jatan.v40i1.1125

Abstract

The purpose of this study is to determine the effects of using silica sand and gravel in concrete as a substitution of coarse aggregates and fine aggregates and to increase the value of compressive strength and flexural strength in concrete for road pavement. This study applied the experimental methods, including material testing, compressive strength and concrete flexural strength testing, referring to the American Standard Testing and Materials (ASTM). From the test results, the highest compressive strength value of concrete was obtained from the 3rd concrete variation with a concrete mixture of 100% silica sand + natural gravel + sikament NN with a compressive strength value of 41.14 MPa. The optimum flexural strength value is obtained from the concrete mix in the 4th variation, namely 100% natural sand + silica gravel + sikament NN with a flexural strength value of 1.6 MPa. Based on these results, the 4th concrete variation was chosen to be applied on the basis of its optimum flexural strength value and compressive strength value that exceeds the design compressive strength, namely 32.36 MPa (fc' design 30 MPa). Manual Desain Perkerasan (MDP) 2017 is used to design rigid pavement on Aia Anak Simpang Road – Minangkabau International Airport Fly Over STA 22+800 to STA 22+800. The pavement thickness obtained is 27.5 cm. Therefore, silica sand and gravel can increase the compressive strength of normal concrete after the addition of silica material, play a role in resisting cracks in cylindrical specimens.
Eksperimen Beton Mutu Tinggi Berbahan Fly Ash Sebagai Pengganti Sebagian Semen Adibroto, Fauna; Suhelmidawati, Etri; Zade, Azri Azhar Musaddiq
Jurnal Ilmiah Rekayasa Sipil Vol 15 No 1 (2018): April 2018
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.425 KB) | DOI: 10.30630/jirs.15.1.85

Abstract

Various research in concrete sector has been done as an effort to increase quality of concrete, materials and method, materials technology and implementation techniques obtained from the results of the experiments and experiments are intended to answer the increasing demands on the use of concrete and overcome the constraints that often occur in the implementation of work in the field. One way to increase the strength of concrete is to use a cement replacement that is fly ash.The purpose of this research is to know the influence of partial cement replacement effect with fly ash to the concrete compressive strength, in order to be applicated for rigid pavement in road design. The variations of composition in the addition of fly ash is 0%, 10%, 12.5%, 15%, 20% and 25% of the weight of cement. Concrete compressive strength is 40 MPa and tested at 7 days and 28 days. This research tested concrete with cylinder test object (diameter 150 mm and height 300 mm) with 30 sample and consist of 6 variation. From this research, optimum compressive strength at 10% variation is 30,770 MPa. The lowest compressive strength is in the 25% variation with 20,046 MPa.The highest compressive strength obtained from the research is 30.770 Mpa.
Experimental Study of Bamboo As A House Retrofitting Material For Developing Countries Suhelmidawati, Etri; Zamzarena, Rekana; Adibroto, Fauna; Syofiardi, Syofiardi
Jurnal Ilmiah Rekayasa Sipil Vol 14 No 2 (2017): Oktober 2017
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (599.211 KB) | DOI: 10.30630/jirs.14.2.103

Abstract

Earthquake is one of the main natural disasters which frequently occur in West Sumatra. Large earthquake September 30, 2009, has caused damage to the structure and caused many casualties. Due to this condition, this research was made to study bamboo as a house retrofitting material for developing countries. Mechanical and physical properties such as moisture content testing, testing density, testing of compressive strength and tensile strength were conducted. It is obtained from the test results, the highest compressive strength and tensile strength are 94.958 MPa and 183 MPa, showed by Betung bamboo. Shaking table test are also undertaken to investigate the seismic behavior of bamboo masonry wall. Two degree of masonry walls, 60° and 90° are tested in order to check the strength of masonry wall by direction of the coming of an earthquake. From the shaking table test, it was observed that a 60° masonry wall showed a better seismic performance than those of a 90° masonry walls. Small cracks were observed at 90° masonry walls after 20 seconds, while there was no crack at a 60° masonry wall. As a result of these test, using bamboo as a house retrofitting material could be chosen, both of technically and economically.
Studi Eksperimental Karakteristik Beton Mutu Tinggi dengan Memanfaatkan Limbah Fly Ash dan Coco Fiber Alvanda, Muhammad Reyhan; Suhelmidawati, Etri; Tiara, Tiara; Putri, Casy Almia; Akbar, Hikmal; Syauqi, Hafizhan; Satwarnirat, Satwarnirat
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 2 (2024): Oktober 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i2.1511

Abstract

The issue of environmental friendliness has become very popular recently. Various industrial sectors must pay attention to environmental factors as a global sustainability goal. In the construction industry sector, concrete is a much-needed material in making building structures. Concrete becomes environmentally friendly by utilizing waste as a substitute for some of the ingredients. This research uses fly ash and coconut fiber. This study aims to determine the effect of renewable innovation in the addition of fly ash and coco fiber waste on the value of compressive strength and flexural strength of concrete and to determine the composition of the most optimum percentage of waste addition, as well as the resulting crack pattern. This research uses the international standard ACI 211.4R-93, which is an experiment with the addition of 15% fly ash and variations in the addition of coconut fiber 0.5%, 1%, 1.5%, and 2%. The concrete quality planning in this study is 40 MPa with concrete treatment for 28 days and 56 days. This test uses cylindrical test objects (15cm x 30cm) with a total of 30 samples for compressive strength testing and beams (60cm x 15cm x 15cm) with a total of 30 samples for flexural strength testing. The results obtained in this study are the optimum compressive strength found in the variation of adding 1.5% fiber and 15% fly ash at 56 days of concrete age of 33.12 MPa. The highest concrete flexural strength value is found in the 2% fiber addition variation.
STUDI EKSPERIMENTAL PENGARUH FLY ASH DAN SERAT KELAPA PADA BETON UNTUK PERKERASAN KAKU Suhelmidawati, Etri; Guspari, Oni; Hidayati, Rahmi; Rahmadani, Putri; Prima, Razaq
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.388

Abstract

Concrete structures are very vulnerable to cracking due to the brittle nature of the material and strong against pressure, but weak against tension. Meanwhile, green technology and sustainable materal are popular nowadays due to global warming issues. Therefore, subtituting  material in concrete which are come from waste disposal are used in this research. Waste materials as a substitute for aggregate in concrete is currently increasing as the demand of green technology. In this research, the waste material used are fly ash and coconut fiber. Fly Ash as the replacement of cement from PLTU of Teluk Sirih and coconut fiber from Padang Pariaman will be studied. The aim of this research was to find out the effect of using Fly Ash and coconut fiber on the compressive strength and flexural strength of concrete. For the use of fiber, soaking will be carried out using NaOh which will affect the wettability angle of the fiber. The experimental method was used in this study, while the tests carried out included material testing, compressive strength test and flexural strength test. Tests carried out refer to the American Standard Testing and Materials (ASTM). Mix design were investigated based on ACI 211 4R-93 for High Strength Concrete. Based on the experimental results, the highest value of compressive strength test was attained in the 4th concrete variation with a concrete mixture of 15% Fly Ash + 1% Coconut Fiber + Sika Viscocrete with a value of 32.1 MPa and the flexural strength value as of 5.3 Mpa.
Co-Authors Akbar, Hikmal Alvanda, Muhammad Reyhan Faizi, Abel Ardhya Fauna Adibroto Gusri Yaldi Muhammad Ikhsan Oni Guspari Prima, Razaq Putri Rahmadani, Putri Putri, Casy Almia Ronal Hadi RR. Ella Evrita Hestiandari Satwarnirat Satwarnirat Syauqi, Hafizhan Syofiardi, Syofiardi Tiara, Tiara Yufajri, Fahmiza Zade, Azri Azhar Musaddiq Zamzarena, Rekana Zulfira Mirani