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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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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.
Prediction of SPT value based on CPT data and soil properties using ANN with and without normalization Fernando, Hendra; Nugroho, Soewignjo Agus; Suryanita, Reni; Kikumoto, Mamoru
International Journal of Artificial Intelligence Research Vol 5, No 2 (2021): December 2021
Publisher : Universitas Dharma Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.835 KB) | DOI: 10.29099/ijair.v5i2.208

Abstract

Artificial neural networks (ANN) are now widely used and are becoming popular among researchers, especially in the geotechnical field. In general, data normalization is carried out to make ANN whose range is in accordance with the activation function used. Other studies have tried to create an ANN without normalizing the data and ANN is considered capable of making predictions. In this study, a comparison of ANN with and without data normalization was carried out in predicting SPT values based on CPT data and soil physical properties on cohesive soils. The input data used in this study are the value of tip resistance, sleeve resistance, effective soil overburden pressure, liquid limit, plastic limit and percentage of sand, silt and clay. The results showed that the ANN was able to make predictions effectively both on networks with and without data normalization. In this study, it was found that the ANN without data normalization showed a smaller error value than the ANN with data normalization. In the network model without data normalization, RMSE values were 3.024, MAE 1.822, R2 0.952 on the training data and RMSE 2.163, MAE 1.233 and R2 0.976 on the test data. Whereas in the ANN with data normalization, the RMSE values were 3.441, MAE 2.318, R2 0.936 in the training data and RMSE 2.785, MAE 2.085 and R2 0.963 in the test data. ANN with normalization provides a simpler architecture, which only requires 1 hidden layer compared to ANN without normalization which requires 2 hidden layer architecture.
Pendampingan Pada Aparat dan UMKM Desa untuk Peningkatan Ekonomi Simpang Petai-Kampar Putra, Agus Ika; Yuniarto, Enno; Siswanto, S.; Nugroho, Soewignjo Agus; Satibi, Syawal; Khairat, K; Herman, Syamsu; Saeri, Muhammad; Adnan, Arisman
J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Vol. 8 No. 1 (2024): April 2024
Publisher : IKIP PGRI Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30734/j-abdipamas.v8i1.2812

Abstract

Simpang Petai village was formed due to the expansion of the village in 2008.  As a new village, Simpang Petai lacks facilities to face the challenges of implementing village development. The level of understanding and skills of the village officials for planning system is still very low.  The participation of UMKM in the implementation of village development needs to be carried out and strengthened as one of the bases of village stability and the driving force for improving the village economy.  The PkM Team of the Riau University Village Development Program, as Technical Assistance, helped solve village problems.  Inventarisasi PkM team, compile activities systematically and continuously, to improve the understanding and skills of officials and village communities in the process of preparing and implementing participatory village development planning. The forming of active participation of young people, as drivers of village UMKM, in development as the basis for the resilience of rural communities and the driving force of the village economy.  The activities of Advanced Welding Skills Practice, which with Product orientation, and Management Activities website Desa as the basis for village planning for Community Services and Marketing of Local Products succeeded in improving the economy of UMKM ABSTRAKDesa Simpang Petai terbentuk karena pemekaran desa tahun 2008. Sebagai desa baru, Simpang Petai minim fasilitas menghadapi tantangan melaksanakan pembangunan desa. Tingkat pemahaman dan keterampilan Aparat desa menyusun sistem perencanaan desa masih sangat rendah. Partisipasi UMKM dalam pelaksanaan pembangunan desa perlu dijalankan serta diperkuat sebagai salah satu basis stabilitas desa dan motor penggerak peningkatan Perekonomian desa. Tim Kegiatan Pengabdian Masyarakat Program Bina Desa Universitas Riau, sebagai Technical Assistance, membantu menyelesaikan permasalahan desa. Inventarisasi tim PkM, menyusun kegiatan secara sistematis dan berkesinambungan, yaitu untuk meningkatkan pemahaman dan keterampilan Aparat dan masyarakat desa pada proses penyusunan dan implementasi perencanaan pembangunan desa yang partisipatif. Terbentuknya partisipasi aktif para pemuda, sebagai penggerak UMKM desa, dalam pembangunan sebagai basis ketahanan masyarakat desa dan motor penggerak Perekonomian desa. Kegiatan Praktik Keterampilan Pengelasan Lanjut, yang dengan orientasi Produk, dan Kegiatan Pengelolaan website Desa sebagai basis perencanaan desa untuk Pelayanan Masyarakat dan Pemasaran Produk Lokal berhasil meningkatkan ekonomi UMKM.
Pengaruh Abu Sekam Kayu Pada Nilai Unconfined Compression Strength Lempung Plastisitas Tinggi Terstabilisasi Semen Kapur NUGROHO, Soewignjo Agus; Al Ridho, Muhammad Faisal; Fatnanta, Ferry
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 1 (2022): Volume 12 Nomor 1, Maret 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i1.688

Abstract

Abstrak Perbaikan lempung dengan semen, kapur, dan abu sekam (RHA) terbukti meningkatkan kuat geser dan daya dukung. Kandungan silika abu sekam kayu (ASK) hampir sama dengan RHA. Penelitian melihat pengaruh ASK pada lempung terstabilisasi semen dan kapur. Pengujian Tekan bebas (UCS) dilakukan untuk membandingkan nilai kuat tekan bebas (qu) lempung asli, lempung distabilisasi semen, dan kombinasi semen dan kapur dan/atau ASK. Sampel diuji pada empat kondisi. Hasil UCS tanpa pemeraman, nilai qu seragam. Pada kondisi tanpa pemeraman dan perendaman, nilai qu semua variasi relatif sama. Pada kondisi pemeraman dan tanpa perendaman, nilai qu berkisar 365 kPa sampai dengan 485 kPa untuk campuran dengan ASK dan kombinasi kapur dengan ASK. Penambahan kapur 10% meningkatkan nilai qu lebih 1100 kPa. Hasil UCS membuktikan, kapur lebih optimal meningkatkan nilai qu dibanding ASK. Penggantian kapur dengan ASK 4% sampai 6% meningkatkan nilai qu menjadi 485 kPa (rendaman) dan menjadi 475 kPa (tanpa rendaman). Kata kunci: Abu sekam Kayu, Kapur, lempung, semen, stabilisasi  Abstract Clay stabilized with cement, lime, and rice hush ash (RHA) has been increasing shear strength and bearing capacity. The silica content of wood husk ash (ASK) is almost the same as RHA. The study seen effect of ASK on clay-cement and lime. Unconfined Compression Strength (UCS) is performed and compare unconfining strength values (qu) of clay, clay-cement, and cement and lime and/or ASK. Sampel was tested on four conditions. UCS results without watering, uniform qu value. Conditions non-curing and soaked, the qu values of all variations are relatively the same. In curing and unsoaked conditions, qu values range from 365 kPa to 485 kPa for ASK and lime with ASK. Adding 10% lime increases qu value more than 1100 kPa. Stabilized with lime is more optimal than ASK to increase qu. Subtitution lime with ASK 4% to 6% increases qu value to 485 kPa (soaked) and to 475 kPa (unsoaked). Keywords: clay, cement, lime, sawdust ash, stabilization 
Pengaruh Waktu Terhadap Daya Dukung Fondasi Tiang Pada Tanah Lunak Dengan Variasi Kekasaran Satria, Zoni; Fatnanta, Ferry; Nugroho, Soewignjo Agus
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 16 No. 1 (2020)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.16.1.12-24.2020

Abstract

Kapasitas daya dukung tanah lunak sangat kecil, untuk peningkatan daya dukung digunakan fondasi tiang friksi yang menggunakan kekasaran permukaan tiang dengan waktu pemancangan yang telah ditentukan yaitu 0, 4, 8, 16, 32, dan 64 hari. Tujuan penelitian ini adalah Menentukan seberapa besar peningkatan kapasitas daya dukung fondasi tiang dengan variasi kekasaran permukaan tiang dan waktu pengujian pembebanan. Pengujian pembebanan menggunkan metode CRP (Constant Rate of Penetration Method) sedangkan untuk interpretasi kapasitas aksial tiang pancang menggunakan metode Terzaghi dan Peck. Semua variasi waktu akan dianalisis dan dibandingkan hasil daya dukung aksial dari fondasi tiang polos, kekasaran spasi dan kekasaran penuh. Hasil penelitian menunjukan peningkatan daya dukung selalu meningakat dari umur 0 sampai 64 hari. Kapasitas daya dukung fondasi tiang terbesar terdapat pada tiang kekasaran spasi yaitu 55,9 N. tiang kekasaran penuh sebesar 54,5 N dan tiang polos sebesar 22,8 N. Faktor peningkatan daya dukung (∆10) tiang polos sebesar 0,04,  tiang spasi 0,07 dan tiang penuh 0,09 dengan waktu referensi (t0) = 1 hari. Faktor peningkatan (∆10 ) menunjukan faktor peningkatan kapasitas daya dukung tiang seiringnya dengan pertambahan waktu. 
Perubahan Nilai Kuat Tekan Lempung Lunak Distabilisasi Dengan Kapur dan Limbah Pembakaran Batubara Zulnasari, Azra; Nugroho, Soewignjo Agus; Fatnanta, Ferry
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 17 No. 1 (2021)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.17.1.24-36.2021

Abstract

Suatu bangunan infrastruktur yang akan dibangun terkait langsung dengan aspek yang paling penting yaitu tanah pendukung, karena berfungsi sebagai menerima dan menahan beban struktural diatasnya. Dalam kenyataannya, tidak semua tanah mempunyai perilaku fisik dan mekanis yang baik, salah satu contohnya ditandai dengan kadar air yang tinggi serta kuat tekan maupun daya dukung tanah yang rendah. Untuk mengevaluasi kemungkinan terjadinya kondisi tersebut maka dilakukan stabilisasi terhadap tanah agar memenuhi persyaratan teknis yang diperlukan. Stabilisasi tanah yang akan ditelaah yaitu perbaikan tanah lempung dengan dicampur zat aditive yaitu kapur, abu terbang serta abu dasar. Kapur dan geopolimer abu batubara, yaitu abu terbang abu dasar, sudah banyak digunakan untuk meningkatkan kuat geser dan daya dukung tanah. Tujuan penelitian adalah mengamati perilaku tanah lempung dengan kembang susut tinggi yang distabilisasi dengan kapur, abu terbang dan abu dasar. Perilaku yang diamati adalah peningkatan kekuatan tanah dengan pengujian laboratorium, yaitu nilai kuat tekan bebas Tanah. Pada penelitian ini pengujian kuat tekan dilakukan dengan 6 perlakuan yaitu:  tanpa pemeraman dan tanpa perendaman; tanpa pemeraman dengan perendaman; pemeraman 7 hari dengan tanpa perendaman; pemeraman 7 hari dan perendaman; pemeraman 28 hari dan  tanpa perendaman, serta pemeraman 28 hari dan perendaman. Hasil penelitian menunjukkan bahwa nilai kuat tekan tersebut akan semakin meningkat seiring dengan lamanya waktu pemeraman. Begitu juga dengan semakin bertambahnya persentase zat aditif maka nilai kuat tekan juga cenderung semakin meningkat. Sedangkan dengan perlakuan pemeraman terhadap sampel mengakibatkan penurunan nilai kuat tekan. Nilai kuat tekan tertinggi berada pada Variasi VI sebesar 1506,158 kPa pada kondisi pemeraman 28 hari dan tanpa perendaman dimana persentase bahan tambah yang terkandung yaitu 25% abu terbang, 15% abu dasar dan 5% kapur. Sedangkan nilai Kuat Tekan Bebas terendah pada Variasi III sebesar 120,442 kPa pada kondisi tanpa pemeraman dan perendaman dengan persentase bahan tambah yang terkandung yaitu 10% abu terbang, 15% abu dasar dan 5% kapur.
Permeability Prediction for Expansive Soil Based on Physical Properties Using Artificial Neural Networks Fatnanta, Ferry; Suprayogi, Imam; Ranata, Nicola Rabb; Nugroho, Soewignjo Agus; Putra, Agus Ika
Makara Journal of Technology Vol. 27, No. 2
Publisher : UI Scholars Hub

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

Abstract

Permeability is a soil parameter related to the construction industry to understand the processes of infiltration, runoff, and settlement. The risk of testing errors is inevitable in permeability investigations, especially in expansive soils. Trial and error in permeability testing becomes difficult due to soils with small pore sizes and large shrinkage expansion. Several studies related to soil physical properties that affect permeability have been conducted. However, the correlation results obtained still have poor accuracy. Artificial neural networks (ANN) are machine learning systems that can change their structure to solve problems that are included in the system. The use of ANNs in data learning is applied to help the established model predict future output values with a small error value. This research aims to study the correlation between the physical properties of expansive soil that affect its permeability using ANN correlation and then produce correlation equations for future inputs. The research was conducted with input data in the form of soil liquid limit, soil plasticity index (IP), %fine grains, and soil permeability as output data. Results demonstrated a good correlation between soil physical properties and permeability, revealing high accuracy in the output regression equation.
Co-Authors ', Muhardi Aditia Siringoringo Adnan Ruziq Ihsan Agus Ika Putra Agus Ika Putra Al Ridho, Muhammad Faisal 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 Fernando, Hendra 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 Khairat, K Khairatu Zaro Khairul Umam Kikumoto, Mamoru 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 Mohammad Saeri Monita Olivia Muhamad Yusa Muhammad Khadafi Lembasi Muhammad Muhshi Muhammad Saeri, Muhammad Muhammad Yusa Muhardi Muhardi Muhardi Novan, Andre Nurdin Nurdin Ongko, Andarsin Prayogo, Giri Puspa Ningrum Raflyatullah Raflyatullah Raflyatullah, Raflyatullah Ranata, Nicola Rabb Randhi Saily Reni Suryanita Rian Trikomara Iriana Rofika Ratna Ardiansyah Roni Indra Lesmana Rosma, Iswadi Hasyim Rudy Suryadi, Rudy Rugun Ermina S. Siswanto S. Siswanto Safridatul Audah Saputra, Riola Satibi, Syawal Satria, Zoni Sayoga, Davin Syamsu Herman Syamsu Herman Syamsul Arifin Unzi Marwan Usman, Fauzan Wulandari, Deny Zega, Christian Robert Zoni Satria Zulnasari, Azra