Article Per Year (5 Year)
p-Index From 2021 - 2026
3.189
P-Index
This Author published in this journals
All Journal Media Teknik Sipil Jurnal Sains dan Teknologi Jurnal Teknik Sipil Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Teknik Journal of the Civil Engineering Forum FROPIL (Forum Profesional Teknik Sipil) Jurnal Sinergitas PkM & CSR Riau Journal of Empowerment Jurnal Rekayasa Sipil Jurnal Serambi Engineering Prokons: Jurnal Teknik Sipil APTEK Journal of Applied Materials and Technology Journal of the Civil Engineering Forum SAINSTEK Journal of Infrastructure and Construction Technology
Gunawan Wibisono
Universitas Riau
Agriculture, Biological Sciences & Forestry Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation

Published : 44 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Journal of Applied Materials and Technology

 1 
The Effect of Portland Cement on Fly Ash Bottom Ash Geopolymer Hybrid Concrete Exposed to Peat Water Environment Monita Olivia; Rudy Satriya Pratama; Ferisma Ratu Giri; Iskandar Romey Sitompul; Alfian Kamaldi; Gunawan Wibisono; Edy Saputra
Journal of Applied Materials and Technology Vol. 3 No. 2 (2022): March 2022
Publisher : AMTS and Faculty of Engineering - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.3.2.24-33

Abstract

Geopolymer hybrid concrete is prepared by activating fly ash bottom ash with an alkaline solution and curing with Ordinary Portland Cement (OPC). OPC could be added to the mixture to increase the reaction, promote hydration, and assist in curing at room temperature. Peat water is an acidic organic environment that may reduce the durability of concrete. The purpose of this research is to determine the effect of Portland cement on the properties of FABA geopolymer hybrid concrete exposed to peat water. Portland cement was used in geopolymer as an additive and a substitute. Compressive strength, porosity, and weight change were evaluated for both mixtures. The NaOH molarities were 10, 12, and 14M, the NaOH/sodium silicate ratios were 1.5, 2.0, and 2.5, and the Ordinary Portland Cement percentages were 0, 10, and 15%. Specimens were exposed to peat water for up to 91 days following 28 days of room temperature curing. The geopolymer mixture with 10M NaOH, 2.5M Ms, and 15% OPC had the highest compressive strength and the lowest porosity. The FABA geopolymer hybrid with OPC had a slightly greater compressive strength and a lower porosity than the geopolymer containing OPC as a cement replacement material. In addition, weight change is more stable in geopolymers containing OPC. Based on the performance of both mixes in peat water, it is recommended to use OPC as an additive in FABA geopolymer hybrid concrete.
Properties of concrete containing crumb rubber and rice husk ash mixing with peat water Abdurrahman, Habib; Alfikri, Nur; Rijaldo, Arief; Qoryati, Mia; Marpaung, Horas Saut Maringan; Wibisono, Gunawan; Olivia, Monita
Journal of Applied Materials and Technology Vol. 6 No. 2 (2025): March 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.6.2.79-89

Abstract

This study compares the effects of peat water and normal water as mixing and curing water on the properties of crumb rubber and rice husk ash concrete (CR-RHA). The number of crumb rubber and rice husk ash used on the concrete followed the optimum mixture from a previous study, which was 5% and 10%, respectively. The crumb rubber was treated to overcome the lack of adhesion by soaking it in water for 24 hours. Normal concrete (PCC) was also cast as a control. CR-RHA and PCC concrete were mixed and cured using normal and peat water. Compressive strength, tensile strength, and porosity were tested at 3, 7, 14, 28, and 56 days. In general, CR-RHA concrete and PCC concrete showed lower performance when mixed and cured with peat water compared to normal water. Peat water with high acidity decreased the calcium content and developed the amount of pores in concrete, resulting in strength reduction. However, due to the excess pozzolan from rice husk ash, CR-RHA concrete had better resistance as the strength loss was relatively smaller, respectively 11.4% at 28 days and 10.6% at 56 days. Furthermore, CR-RHA concrete showed lower porosity, higher compressive strength, and tensile strength than PCC concrete due to rice husk ash that improved concrete density by generating CSH and crumb rubber that prevented concrete from spalling in an acidic environment. It was also found that compared to the previous study, pre-treated crumb rubber exhibited better mechanical and durability of concrete.
Co-Authors Abdurrahman, Habib Abrar Rifqi Pratama Afdal Afdal Agus Ika Putra Agus Nugroho, Soewignjo Ahmad Fajriman Aidi Yani Fitri Ainiyyah Fadhilah Alfian Kamaldi Alfian Malik Alfikri, Nur Ali Imron Rusadi Andarsin Ongko Ardian Yolanda Arief Rahman Arief Rijaldo Fajri Arif Rahman Avrilly Zesthree Mauliza Ayu Nofikasari Dhea Fitra Yofani Dinni Yunike Jasril Edy Saputra Eko Soebowo Erwin Erwin Fachrul Willian Fahri Hafisuddin Fahrurrozi Fandy Agisman Febri Paramitha Ramadhani Ferisma Ratu Giri Ferry Fatnanta Frans Rezal Habib Abdurrahman Hasibuan, Putra S Hengki Tornando Ihsanul Muslim Irvan Arisma Iskandar Romey Sitompul Ismeddyanto, Ismeddiyanto Ismi Siska Rahmayani Kairon Wika Rejeki Sembiring Kamaldi, Alfian Khairil Badry Khairul Umam Leo Sentosa M. Shoffar Al Hafizh Marpaung, Horas Saut Maringan Mia Qoryati Milka Novita Manalu Mohd. Rizki Novianto Monita Olivia Monita Olivia Muhamad Yusa Muhammad Alfaridzi Adfan Muhammad Ikhsan Muhammad Riyan Sabri Muhammad Rizky Muhammad Shalahuddin Muhammad Yusa Muhardi Niko Rizaldi Nur Alfikri Nurwijayanti Ori Patinsyah Qoryati, Mia Rahmi Afifi Rahmi Afifi Ramadhan Yanuari Rezha Yaren Ria Larici Rijaldo, Arief Rinaldi Rinaldi Rizqy Ridho Prakasa Rudy Satriya Pratama Satibi, Syawal Shakila Fuadah Lubis Soewignjo Agus Nugroho Sri Djuniati Suci Cahya Ferdilla Surgaroni uga Trivia Ariska Wicaksono Mahestra Noegroho Zakiyul Fuadi