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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Sains dan Teknologi Jurnal Informatika Jurnal Teknik Sipil dan Perencanaan APTEK Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Rekayasa Sipil Proceedings ACES (Annual Civil Engineering Seminar) Fondasi: Jurnal Teknik Sipil Jurnal Teknik Sipil Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Teras Jurnal International Journal of Artificial Intelligence Research Journal of the Civil Engineering Forum SIKLUS: Jurnal Teknik Sipil Jurnal Rekayasa Sipil Astonjadro Jurnal Infrastruktur Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Pelita Masyarakat IGKOJEI: Jurnal Pengabdian Masyarakat Civil Engineering Collaboration Makara Journal of Technology J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Jalan Jembatan
Soewignjo Agus Nugroho
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Veterinary

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EFEK PENAMBAHAN LIMBAH BATUBARA PADA LEMPUNG PLASTISITAS TINGGI TERSTABILISASI SEMEN TERHADAP CBR Satibi, Syawal; Nugroho, Soewignjo agus; Putra, agus ika; Zega, Christian Robert
Jurnal Jalan Jembatan Vol 41 No 2 (2024)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58499/jatan.v41i2.1236

Abstract

High plasticity clay (CH) has poor material characteristics, such as considerable shrinkage due to high plasticity, so soil improvement is needed, for example, using cement and coal waste (bottom ash and fly ash, BAFA). The purpose of adding cement and BAFA type C is to see the effect on changes in soil CBR values. Variations in BAFA addition are 4%, 8%, 12% and 16% and PCC cement 3% and 5%. The percentage of bottom ash content to fly ash in BAFA is 2:1. Based on the test results, an increase in the CBR bearing capacity value was seen from 0.78% in the original soil to 18% in samples with a mixture of 5% cement and 16% BAFA with 7 days of curing. The CBR sample S5-B16-C7 is the largest value of all sample variations. The increase in the CBR value is huge from 0,78% to 18.73% This value proves that the combination of mixtures can effectively increase soil-bearing capacity. Based on microscopic testing of CBR samples, it can be seen that the higher the BAFA and Cement content, the rougher and paler the changes in the sample structure are. Conversely, the sample structure is smoother at the lowest BAFA content and cement content, and the sample colour is brighter, approaching the original soil colour. The results of this study indicate that BAFA can be used as pavement materials and provide a solution to the environmental impact of industrial waste.
Pengaruh Penggunaan Semen dan Fly Ash Terhadap Nilai CBR Tanah Lempung Muara Fajar Nugroho, Soewignjo Agus; Satibi, Syawal; Raflyatullah, Raflyatullah
Jurnal Rekayasa Sipil Vol. 17 No. 3 (2021)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.17.3.267-278.2021

Abstract

Tanah merupakan bagian terpenting dari struktur bawah bangunan maupun perkerasan jalan. Tanah berfungsi memikul beban struktur atas, baik itu berupa beban statis maupun dinamis. Pembangunan jalan bebas hambatan (tol) khususnya di Riau, sebagian besar trace jalan melewati daerah dengan deposit tanah lempung lunak. Masalah pokok pada tanah lempung ialah kembang susut yang besar serta daya dukung yang rendah. Stabilisasi kimiawi dengan bahan tambah (additive) diperlukan untuk memperbaiki sifat-sifat tanah tersebut agar bisa digunakan sebagai lapis fondasi atau tanah dasar pada perkerasan jalan. Pencampuran semen dan abu terbang, sebagai additive, merupakan upaya perbaikan tanah. Penelitian ini bertujuan untuk melihat pengaruh pemakaian campuran abu terbang dan semen pada lempung Muara Fajar. Muara Fajar merupakan Desa di Kecamatan Rumbai, Kota Pekanbaru yang deposit tanah berupa lempung plastisitas tinggi, satu daerah yang akan dilewati jalan tol. Penelitian meliputi perubahan plastisitas karena penambahan additive, perubahan kadar air dan berat volume serta perubahan nilai CBR. Pengujian CBR difokuskan pada kondisi pemeraman 7 hari dan perendaman 4 hari, sesuai standar. Kadar semen dipilih 3% dan 5% dengan masing-masing dicampur dengan abu terbang sebesar 5%, 10%, dan 15%. Hasil penelitian menunjukan, penambahan additive menurunkan sifat kembang susut. Perubahan kadar air dan berat volume mulai dari pencampuran sampai dengan perendaman tidak melebihi 20%. penambahan additive meningkatkan kepadatan tanah. Nilai CBR pada kandungan 3% semen tidak bisa digunakan sebagai material tanah dasar. Nilai CBR, untuk kadar semen 5%, dengan pemeraman 7 hari dan rendaman 4 hari, dengan kadar abu terbang 5%, 10%, dan 15% berturut-turut sebesar 29,33%; 31,47%; dan 35,23%. Penambahan 5% semen dan 5% pada tanah memenuhi syarat sebagai sub-base dan sub-grade jalan.
EFFECT OF ADDING WOOD POWDER ASH ON CBR VALUE IN STABILIZED HIGH PLASTICITY CLAY CEMENT AND LIME Nugroho, Soewignjo Agus; Fatnanta, Ferry; Alridho, Muhammad Faizal
ASTONJADRO Vol. 10 No. 2 (2021): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v10i2.5235

Abstract

Cement and lime are widely used as stabilizing agents for soft clays. Some pozzolanic materials have also been used as additives such as asphalt, geosta, fly ash (geopolymer), base ash, salt. Industrial waste such as rice husk ash, coal burning ash (geopolymer) is also used as an alternative for stabilization materials. This research aims to study the effect of sawdust ash, as wood waste, to replace cement and lime on the stabilization of high plasticity clay. The effectiveness of sawdust ash, in this study, was evaluated from the CBR value. The test samples were also reviewed under conditions with and without immersion and with and without curing. Based on the test results, lime is very effective as an additive because it increases the CBR value of more than 100 at a level of 10%. Wood husk ash also increases the CBR value by 100%. The use of cement, lime and wood husk ash requires curing time so that there is a strong bond between the clay and additives. The use of additives without curing did not increase the CBR value. In the stabilization of clay with 10% lime, replacement of lime with wood husk ash by 4%-6%, can be used as a road sub-grade with good quality.
Program Edu-Eco-School: Optimalisasi Lahan Sekolah untuk Budidaya Tanaman Pangan dan Sayuran Berbasis Instalasi Air Penyiraman Nurdin, Nurdin; Fakhri, Fakhri; Suprayogi, Imam; Ermiyati; ‘Audah, Safridatul; Gussyafri, Haji; Saily, Randhi; Novan, Andre; Wibisono, Gunawan; Olivia, Monita; Nugroho, Soewignjo Agus; Joehari Jamili, M.
Pelita Masyarakat Vol. 7 No. 1 (2025): Pelita Masyarakat September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/pelitamasyarakat.v7i1.16007

Abstract

The Edu-Eco-School Program was implemented as a community service activity at SMPS Khazanah Boarding School, Pujud District, with the aim of optimizing school land through the cultivation of food crops and vegetables supported by a water-efficient irrigation system. This program is significant as it aligns with the Sustainable Development Goals (SDGs), particularly Zero Hunger and Climate Action, which emphasize food security and water resource conservation in education. The implementation stages included land condition surveys, the design and construction of a bore well and PVC pipe network as an irrigation system for plant watering, agricultural training, and mentoring up to the harvesting stage. The program successfully transformed underutilized land into a productive garden with various commodities, such as chili, tomato, corn, and vegetables. The harvest not only met the school’s basic needs but also served as a contextual learning medium for students to practice sustainable agriculture. Overall, this program enhanced school community engagement, improved water-use efficiency, and created a productive green area that supports local food security while strengthening environmental education.
Co-Authors ', Muhardi Aditia Siringoringo Adnan Ruziq Ihsan Agus Ika Putra Agus Ika Putra Alridho, Muhammad Faizal Andarsin Ongko Andius Dasa Putra Ari S. Sibarani Ari S. Sibarani Ari Sandhyavitri Ari Sandhyavitri Arie S Sibarani Arie S Sibarani Arisman Adnan Avrilly Zesthree Mauliza Azra Zulnasari Bahrul Junaidi Bambang Sujatmoko Enno Yuniarto Erik Azarya Ginting Ermiyati Fadhilah, Randy Fajar Restuhadi Fakhri, Fakhri Febrizal Ujang Ferry Fatnanta Fikri Hidayat Giri Prayoga Gunawan Wibisono Gunawan Wibisono Gussyafri Hendra Fernando Ihsan, Adnan Ruziq Imam Suprayogi Inna Kurniati Inna Kurniati, Inna Irfan Hasan Jamili, M Joehari K Khairat Khairatu Zaro Khairul Umam Lala Monang Robert Christian Zega Lala Monang Robert Christian Zega Zega Lembasi, Muhammad Khadafi Lingga Panji Subrata, Lingga Panji M Faizal Alridho M. Shoffar Al Hafizh M. Yusuf Agustamar Mamoru Kikumoto Mohammad Saeri Monita Olivia Muhamad Yusa Muhammad Faisal Al Ridho Muhammad Khadafi Lembasi Muhammad Muhshi Muhammad Yusa Muhardi Muhardi Muhardi Novan, Andre Nurdin Nurdin Ongko, Andarsin Prayogo, Giri Puspa Ningrum Raflyatullah Raflyatullah Raflyatullah, Raflyatullah Randhi Saily Reni Suryanita Rian Trikomara Iriana Rofika Ratna Ardiansyah Roni Indra Lesmana Rosma, Iswadi Hasyim Rudy Suryadi, Rudy Rugun Ermina S. Siswanto Safridatul Audah Saputra, Riola Satibi, Syawal Sayoga, Davin Syamsu Herman Syamsul Arifin Unzi Marwan Usman, Fauzan Wulandari, Deny Zega, Christian Robert Zoni Satria Zulnasari, Azra