Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Advance Sustainable Science, Engineering and Technology (ASSET)
Rahmita Sari Rafdinal
Unknown Affiliation
Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
TEKNOLOGI ZINC CARTRIDGE DAN TI-WIRE SENSOR SEBAGAI TEKNOLOGI PROTEKSI KATODIK DAN PEMANTAUAN KOROSI BAJA TULANGAN BETON PERTAMA DI INDONESIA Hadi Gunawan Sonjaya; Rahmita Sari Rafdinal
Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Vol. 9 No. 1 (2023)
Publisher : Himpunan Pengembangan Jalan Indonesia (HPJI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jhpji.v9i1.6443.31-40

Abstract

Abstract Corrosion of steel rebar in bridge structures is a growing issue worldwide. A pilot research project on corrosion hazards in Indonesia was carried out by employing maintenance technology using sacrificial anode cathodic protection and corrosion monitoring system based on wireless information and communication technology. This paper presents experimental studies on Zinc Cartridge as a concrete repair systems and utilization of Titanium Wire (Ti-Wire) Sensor as a reference electrode in the concrete repair system by applying them to chloride-contaminated concrete exposed to a dry-tropical climate environment. From the reported work, it can be concluded that Zinc Cartridge affords excellent corrosion protection in dry-tropical conditions, and that Ti-Wire Sensor is reliable to be used as a reference electrode for rebar corrosion monitoring in concrete. Keywords: Zinc Cartridge; Ti-Wire Sensor; cathodic protection; corrosion protection; corrosion monitoring Abstrak Korosi baja tulangan pada struktur-struktur jembatan telah tumbuh menjadi suatu masalah di seluruh dunia. Suatu kajian awal tentang dampak korosi di Indonesia telah dilakukan dengan menggunakan sistem pemeliha-raan yang menggunakan teknologi proteksi katodik anode korban dengan dilengkapi teknologi pemantauan korosi berdasarkan sistem informasi dan komunikasi secara nirkabel. Makalah ini menyajikan suatu studi eksperimental tentang Zinc Cartridge sebagai sistem perbaikan beton dan pemanfaatan sensor Titanium Wire (Ti-Wire) sebagai elektrode referensi dalam sistem perbaikan beton, dengan menerapkannya pada beton terkontaminasi klorida yang terpapar lingkungan iklim tropis kering. Berdasarkan hasil studi dan pengamatan yang didapat, diperoleh kesimpulan bahwa Zinc Cartridge System mampu memberikan perlindungan korosi yang sangat baik dalam kondisi lingkungan tropis yang kering, dan sensor Ti-Wire dapat diandalkan untuk digunakan sebagai elektrode referensi untuk pemantauan korosi tulangan pada beton. Kata-kata kunci: Zinc Cartridge; Ti-Wire Sensor; proteksi katodik; perlindungan korosi; pemantauan korosi
Geopolymer Bio-Patch Repair: Microbially-Induced Calcite and Pozzolanic Fly Ash and Rice Husk Ash for Corrosion-Resistant of Reinforced Concrete Repair Pinta Astuti; Angga Jordi Wisnu Nouvaldi; Aprilia Rahmayanti; Pramudya Surya Shabura; Muhammad Etandra Fara Adzani; Dylan Ataa Tsany; Adhitya Yoga Purnama; Rahmita Sari Rafdinal
Advance Sustainable Science Engineering and Technology Vol. 8 No. 1 (2026): November - January
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i1.2729

Abstract

Indonesia’s archipelagic environment subjects concrete structures to severe corrosion and sulfate attacks, necessitating sustainable repair solutions. This study evaluates a geopolymer-based bio-patch repair mortar utilizing fly ash (FA), rice husk ash (RHA), and Bacillus subtilis bacteria to induce Microbially Induced Calcite Precipitation (MICP). While the silica-rich ashes act as pozzolanic materials, the bacteria enhance durability by reducing oxygen levels and lowering corrosion rates. Microscopic analysis confirmed the formation of calcium carbonate ($CaCO_3$) and calcium silicate hydrate (C-S-H), both of which significantly improve mechanical properties. The research identified an optimum mixture of 93% FA, 6% RHA, and 1% bacteria, which achieved a compressive strength of 30 MPa, a density of 2.32 g/cm³, and a low water absorption rate of 3.25%. These results meet standard performance requirements, demonstrating that this eco-friendly geopolymer-MICP system is a viable and innovative contribution to structural repair in aggressive environments.
Co-Authors Adhitya Yoga Purnama Angga Jordi Wisnu Nouvaldi Aprilia Rahmayanti Dylan Ataa Tsany Hadi Gunawan Sonjaya Muhammad Etandra Fara Adzani Pinta Astuti Pramudya Surya Shabura