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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal Teknik Sipil Journal of Civil Engineering Jurnal Teknik Sipil Journal of Advanced Civil and Environmental Engineering Jurnal Penelitian Pendidikan IPA (JPPIPA) Civil Engineering Dimension Jurnal Aplikasi Teknik Sipil Jurnal Manajemen Aset Infrastruktur dan Fasilitas Logic : Jurnal Rancang Bangun dan Teknologi Portal: Jurnal Teknik Sipil Journal of Infrastructure and Facility Asset Management Publikasi Riset Orientasi Teknik Sipil (Proteksi) Seminar Nasional Ilmu Terapan Journal Integration of Management Studies
Januarti Jaya Ekaputri
Civil Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Utilization Of Buton Asphalt Solid Waste (ASW) Waste Bitumen Extraction In Concrete Aulia, Siti Aja; Ekaputri, Januarti Jaya
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 7, No 1 (2024): April
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.7.1.48-64

Abstract

Indonesia has 650 million tons of Buton Rock Asphalt (Asbuton) deposits.  The mineral residue, known as Asphalt Solid Waste (ASW). The extraction left ASW by 65-90% of asbuton’s weight. However, 770 thousand tons/year of ASW remain underutilized, causing environmental pollution due to its hydrocarbon content. Based on XRD results, Asbuton minerals were dominated with 46% CaCO3, which are potential as a subtitute material in concrete. However, its hydrocarbon content at 68,911 ppm raises concerns. To prevent ASW hydrocarbons from contaminating concrete, solidification was attempted. This study investigates solidification by making Artificial Coarse Aggregate (ACA) products and using ASW as a subtitute for gravel in concrete. The ACAs were produced from a mixture of ASW and cement, molded into 50 x 100 mm cylinders, crushed after twenty eight-days moist curing, and tested according to ASTM C33 standard of gravel. ASW replaced 0-12.5% by volume of sand and ACA replaced 0-12.5% by volume of gravel in concrete with a target compressive strength of 45 MPa at twenty eight-days. Heat of hydration and shrinkage were tested to indentify the impact of CaCO3 from ASW on concrete. The results showed that ACA could reduce 9% of ASW hydrocarbons. However, the ACA produced did not meet the gravel standard in ASTM because ACA absorption reached 6.75% and abrasion test up to 57%. Neverthless, ASW’s high absorption reduced heat hydration by 10% and shrinkage by 83% compared to normal concrete.
Flocculant Assisted Treatment of Suspended Sidoarjo Mud Thilal Syihabuddin; Januarti Jaya Ekaputri; Chikako Fujiyama
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.11880

Abstract

This study investigates the use of lime-based flocculants as a treatment method for Sidoarjo mud (LUSI) to improve solid–liquid separation and reduce the environmental impact of its discharge into the Porong River. Several commercial lime-derived flocculants were tested through jar experiments to evaluate their effectiveness in promoting particle aggregation and enhancing settling behavior under conditions similar to the existing treatment pond. The results indicate that a mud-to-water ratio of 1:4 provided the most efficient sedimentation performance, reflected by faster settling rates and clearer supernatant. Among the flocculants examined, differences in chemical composition and particle morphology influenced the degree of aggregation and overall clarity of the treated water. The treatment substantially reduced turbidity and suspended solids, while also lowering chloride levels in the clarified water. These findings suggest that lime-based flocculants are a feasible option for mitigating the environmental burden of LUSI mud disposal by improving separation efficiency.
Capillary Imbibition of Concrete Containing Cold Bonded Fly Ash-Based Lightweight Aggregate in a Salt Environment Risdanareni, Puput; Sulton, Mohammad; Nindyawati, Nindyawati; Rosyidi, Ditya Hafidz; Ekaputri, Januarti Jaya; Razak, Rafiza Binti Abd.; Abdullah, Mohd Mustafa Al Bakri
Civil Engineering Dimension Vol. 28 No. 1 (2026): MARCH 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.1.23-33

Abstract

Cold bonded lightweight aggregate generated from fly ash (FA LWA) has become an interesting approach to increase the consumption of fly ash and prevent over-mining of natural aggregate. However, using the cold-bonded hardening method could increase the number of open pores in LWA, making the concrete containing this LWA face an increased risk of degradation due to water ingress. Thus, in this research, the effect of using FA LWA in concrete on the mechanical and transport properties in a salt environment is being investigated. Three aggregate replacement ratios of 0, 50, and 100% were applied, while the salt environment was mimicked with NaCl and Na2SO4 solutions. The results show that the optimum replacement rate of FA LWA was 50%. Regarding the transport properties, exposing concrete to a salt environment (NaCl or Na2SO4) proved to slow down the capillary imbibition rate slightly.
Analisis Pemanfaatan Zat Aditif pada Reclaimed Asphalt Pavementuntuk Lapisan Beton Aspal: Additive Utilization Analysis in Reclaimed Asphalt Pavement for Asphalt Concrete Layer Ari Widayanti; Ria Asih Aryani Soemitro; Januarti Jaya Ekaputri
Jurnal Manajemen Aset Infrastruktur & Fasilitas Vol 4 No 1 (2020): Jurnal Manajemen Aset Infrastruktur & Fasilitas
Publisher : Departemen Teknik Sipil ITS

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

Abstract

Infrastruktur dan fasilitas transportasi merupakan hal-hal yang sangat diperlukan untuk menunjang aktivitas masyarakat, pembangunan dan pengembangan wilayah. Manajemen aset infrastruktur dan fasilitas transportasi perlu dikelola dengan baik. Dalam rangka penghematan sumberdaya alam, maka pemanfaatan RAP sebagai hasil pengerukan sebagian perkerasan jalan sangat diperlukan. RAP merupakan material sisa, sehingga terdapat kelemahan yang dapat mempengaruhi kinerja teknisnya. Oleh karena itu memerlukan penambahan material lain untuk dapat memperbaiki sifat material RAP. Penambahan zat aditif mampu memperbaiki sifat RAP terutama dari sisi kelemahan aspal RAP pada lapisan aspal beton. Tujuan studi ini adalah memperoleh hasil analisis terhadap sifat fisik dan kimia zat aditif untuk memperbaharui sifat aspal RAP pada lapisan aspal beton. Metode yang digunakan adalah studi literatur dari peneliti terdahulu dan analisis zat aditif terhadap parameter pengujian aspal. Hasil yang diperoleh adalah pemanfaatan zat aditif berpengaruh terhadap nilai penetrasi, daktilitas, viskositas aspal. Penambahan zat aditif pada RAP dapat meningkatkan nilai penetrasi aspal RAP dan mengurangi viskositas, sehingga mengurangi getas pada aspal RAP dan meningkatkan kinerja campuran aspal beton. Zat aditif NR aman dan layak digunakan untuk aditif pada perkerasan jalan dengan RAP.
Karakteristik Material Pembentuk Reclaimed Asphalt dari Jalan Nasional di Provinsi Jawa Timur Ari Widayanti; Ria Asih Aryani Soemitro; Januarti Jaya Ekaputri; Hitapriya Suprayitno
Jurnal Manajemen Aset Infrastruktur & Fasilitas Vol 1 No 1 (2017): Jurnal Manajemen Aset Infrastruktur & Fasilitas
Publisher : Departemen Teknik Sipil ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26151847.v1i1.3759

Abstract

Jalan merupakan salah satu aset infrastruktur yang sangat penting dalammemperlancar arus distribusi barang dan pergerakan masyarakat. Pembangunaninfrastruktur yang meningkat dewasa ini membutuhkan material yang meningkat pula,perlu diimbangi dengan alternatif material lain yang tersedia di alam. Reclaimed Asphaltmerupakan material yang dihasilkan dari pengupasan konstruksi perkerasan jalan.Penambahan lapis perkerasan akan menyebabkan elevasi jalan semakin meningkat,sehingga kondisi permukaan jalan semakin tidak ideal. Volume Reclaimed Asphalt yangsemakin menumpuk, dan pemanfaatan yang belum optimal merupakan hal yang perlumendapat perhatian saat ini. Metode yang digunakan adalah metode studi literatur daripeneliti terdahulu pada pada jalan nasional di Provinsi Jawa Timur. Hasil yangdiperoleh adalah karakteristik agregat Reclaimed Asphalt memenuhi syarat SpesifikasiBina Marga Tahun 2010 Revisi 3, sedangkan parameter penetrasi dan daktilitas aspalReclaimed Asphalt tidak memenuhi persyaratan. Untuk itu perlu adanya penambahanmaterial baru untuk mengantisipasi kelemahan yang terjadi sehingga dapat memenuhispesifikasi teknis material perkerasan jalan.
Evaluating the Socio-Economic Effects of Fly Ash and Agricultural Waste on the Construction Sector Irwanda Laory; Januarti Jaya Ekaputri; Andri Kusbiantoro; Raden Aswin Rahadi; Davin H. E. Setiamarga; Augusta Adha; Kurnia Fajar Afgani
Journal Integration of Management Studies Vol. 2 No. 2 (2024)
Publisher : Integrasi Sains Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58229/jims.v2i2.232

Abstract

The building industry significantly impacts environmental degradation due to its reliance on conventional materials such as cement and concrete, which are associated with high carbon emissions and substantial energy consumption. This study explores the socio-economic impacts of substituting fly ash and agricultural waste for traditional construction materials. A comprehensive review of 50 peer-reviewed papers, industry reports, and online sources reveals that these alternative materials offer considerable benefits. Cost savings average between 15% and 20%, driven by reduced material costs and lower disposal requirements. Environmentally, using fly ash and agricultural waste significantly reduces greenhouse gas emissions, with fly ash cutting emissions by approximately 25% and agricultural waste by about 20%, primarily due to decreased energy consumption. Furthermore, technical assessments show that these materials enhance the strength and durability of concrete, meeting or exceeding conventional standards. The study also highlights broader socio-economic advantages, including support for rural economies through new markets for agricultural by-products and job creation in recycling and construction sectors. These findings suggest integrating fly ash and agricultural waste into construction practices can positively impact economic growth and environmental sustainability. However, the study acknowledges limitations such as reliance on secondary data and potential geographic biases. Future research should prioritize original data collection, long-term performance assessments, and investigation of regional material-use variations. This study underscores the practical and environmental benefits of incorporating these sustainable materials, contributing to a more eco-friendly construction industry.
Penggunaan Fly Ash sebagai Agregat Buatan PenggantiAgregat Alami pada Campuran Beton Adriyan Candra Purnama; Januarti Jaya Ekaputri
Jurnal Manajemen Aset Infrastruktur & Fasilitas Vol 5 No 2 (2021): Jurnal Manajemen Aset Infrastruktur & Fasilitas
Publisher : Departemen Teknik Sipil ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26151847.v5i2.14498

Abstract

Beton merupakan bahan komposit yang tersusun dari campuran agregat kasar, agregat halus, semen, dan air. Semakin gencarnya pembangunan infrastruktur, mengakibatkan ketersediaan bahan baku berkurang. Bahan baku material beton berupa agregat kasar dan agregat halus yang berasal dari alam jika terus diambil secara berlebihan akan mengancam kondisi lingkungan. Oleh karena itu, perlu dilakukan alternative material pengganti agregat alam dengan agregat buatan. Fly ash yang merupakan limbah dari sisa pembakaran batu bara dapat dimanfaatkan sebagai agregat buatan pengganti agregat natural. Agregat buatan kasar dan halus dibentuk dengan menggunakan pasta berbahan dasar fly ash. Agregat buatan berbahan dasar pasta fly ash memiliki kuat tekan hingga 50,4 MPa. Agregat kasar dan agregat halus dari bahan buatan ini digunakan sebagai campuran pada beton. Hasil menunjukan bahwa beton dengan menggunakan agregat natural memiliki kuat tekan sebesar 26,59 MPa dari kuat tekan rencana 25 MPa, sedangkan beton dengan menggunakan agregat buatan memiliki nilai kuat tekan 24,76 MPa. Hal ini menunjukan bahwa fly ash dapat digunakan sebagai alternatif pengganti agregat natural, dikarenakan kuat tekan yang dihasilkan beton dengan agregat buatan memiliki nilai kuat tekan yang hampir sebanding dengan beton dengan agregat natural.
Pengaruh Penambahan Mikroba untuk Meningkatkan Kepadatan Pasta Berbahan Fly Ash: The Influence of Microbes Additionto Increase Performance of Fly Ash-Based Paste Annisa Rahmadina; Januarti Jaya Ekaputri
Jurnal Manajemen Aset Infrastruktur & Fasilitas Vol 5 No 3 (2021): Jurnal Manajemen Aset Infrastruktur & Fasilitas
Publisher : Departemen Teknik Sipil ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26151847.v5i3.15358

Abstract

Industri konstruksi membutuhkan inovasi bahan bangunan untuk memenuhi persyaratan ekologis dan ekonomi. Bahan bangunan inovatif dapat memberikan kontribusi besar bagi efisiensi sumber daya. Studi ini dilakukan untuk mengetahui pengaruh penambahan mikroba kedalam pasta berbahan fly ash yang dapat digunakan sebagai bahan alternatif bahan konstruksi bangunan. Mikroba yang digunakan merupakan jenis sporosarcina pasteurii. Volume mikroba yang ditambahkan 0-5000 ml/m3. Pasta tersebut dimanfaatkan sebagai bahan agregat buatan. Pengujian karakterisasi agregat yang dilakukan seperti berat jenis, resapan, keausan dan porositas. Hasil pengujian karakterisasi agregat buatan kemudian dibandingkan dengan agregat natural. Hasil penelitian menunjukkan pada umur 7 hari, kuat tekan pasta dengan penambahan volume mikroba maksimum memiliki kekuatan yang lebih tinggi dan pori yang rendah. Selain itu, berat jenis agregat buatan lebih ringan daripada berat jenis agregat agregat natural. Nilai penyerapan dan keausan agregat buatan ini lebih tinggi jika dibandingkan dengan agregat natural. Pori yang lebih tinggi pada agregat buatan berdampak pada karakteristik agregat yang lebih rendah dibandingkan dengan agregat natural. Walaupun demikian, dibuktikan bahwa dari uji karakteristik, agregat buatan ini masuk dalam persyaratan dan dapat digunakan sebagai pengganti agregat natural.
Capillary Imbibition of Concrete Containing Cold Bonded Fly Ash-Based Lightweight Aggregate in a Salt Environment Puput Risdanareni; Mohammad Sulton; Nindyawati Nindyawati; Ditya Hafidz Rosyidi; Januarti Jaya Ekaputri; Rafiza Binti Abd. Razak; Mohd Mustafa Al Bakri Abdullah
Civil Engineering Dimension Vol. 28 No. 1 (2026): MARCH 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.1.23-33

Abstract

Cold bonded lightweight aggregate generated from fly ash (FA LWA) has become an interesting approach to increase the consumption of fly ash and prevent over-mining of natural aggregate. However, using the cold-bonded hardening method could increase the number of open pores in LWA, making the concrete containing this LWA face an increased risk of degradation due to water ingress. Thus, in this research, the effect of using FA LWA in concrete on the mechanical and transport properties in a salt environment is being investigated. Three aggregate replacement ratios of 0, 50, and 100% were applied, while the salt environment was mimicked with NaCl and Na2SO4 solutions. The results show that the optimum replacement rate of FA LWA was 50%. Regarding the transport properties, exposing concrete to a salt environment (NaCl or Na2SO4) proved to slow down the capillary imbibition rate slightly.
Co-Authors . Faimun Abda Abda Abdullah, Mohd Mustafa Al Bakri Achmad Freddya Eka Prasandha Adlizie Rifkianda Muhammad Adriyan Candra Purnama Afgani, Kurnia Fajar Ahyudanari, Ervina Aji, Pujo Andri Kusbiantoro Annisa Rahmadina Antonius Antonius Ari Widayanti Ari Widayanti Ari Widayanti Ari Widayanti Ari Widayanti Augusta Adha Aulia, Siti Aja Azwar Annas Bari, M. Shahib Al Buntara S. Gan Chikako Fujiyama Davin H. E. Setiamarga Diana, Nur Ayu Dimas Setiyo Nugroho Ditya Hafidz Rosyidi Dora Melati Nurita Sandi Dwa Desa Warnana Han Ay Lie Hendrawan Setyo Warsito Herry Budianto Hitapriya Suprayitno, Hitapriya Hung Thanh Nguyen Ign. Harry Sumartono Imam Junaidi Indarto Indarto Irawan, Candra Irwanda Laory Junaedi Utomo M. Shahib Al Bari M. Shofi’ul Amin Makno Basoeki Mohammad Sulton Mohammad Sulton Mohd Mustafa Al Bakri Abdullah Nikmatus Solikha Nindyawati Nindyawati Nindyawati Nindyawati Nobuhiro Chijiwa Prastyanto, Catur Arif Puput Risdanareni Puput Risdanareni Raden Aswin Rahadi Rafiza Binti Abd. Razak Ratna Handayani Razak, Rafiza Binti Abd. Ria Asih Aryani Soemitro Ridho Bayuaji Rosyidi, Ditya Hafidz Sidiq Purnomo Thilal Syihabuddin Toni Budi Santoso Trihanyndio Rendy Satrya Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Triwulan Tu Dac Ho Vandi Alextrianto Widi Astuti Winda Agustin Wiwik Handayani Yeni Rochsianawati Yusak Nurrizki