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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Bangunan Civil Engineering Dimension BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang G-Tech : Jurnal Teknologi Terapan Journal Innovation of Civil Engineering (JICE) JAPI: Jurnal Akses Pengabdian Indonesia
Puput Risdanareni
Universitas Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Environmental Science Health Professions Nursing Public Health Transportation Other

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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.
Analysis of the Effect of Bridge Height on the Structural Performance of Steel Network-Bound Arch Bridges with Inclination Abdullah, Daffa Syarif; Alfarisi, Mohammad Salman; Tamami, Fajar; Risdanareni, Puput
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8823

Abstract

Indonesia, with its vast geographical characteristics, requires efficient and sustainable long-span bridges to improve regional connectivity. This study aims to determine the optimal arch height for steel-bound arch bridges with cable network configurations and inward slopes based on structural performance. The analysis was conducted using the finite element method through SAP2000 v.25 on a 150 m span bridge with a cable angle of 74° and variations in arch height of 23 m, 24 m, and 25 m. Structural performance was evaluated based on maximum deflection and normalized structural weight on a scale of 0–1. The results show that increasing the arch height reduces the deflection from 148.55 mm to 131.41 mm with a relatively small increase in weight, which is around 0.5%. The 25 m arch height produces the best performance and is recommended as the optimal configuration for an efficient and sustainable tied arch bridge design.
Co-Authors Abdullah, Daffa Syarif Abdullah, Mohd Mustafa Al Bakri Adi Susetyo Afif Achsanul Choiri Alfarisi, Mohammad Salman B. Sri Umniati Bathista, Moch. Dhoni Boedya Djatmika Cynthia Permata Dewi Ditya Hafiz Rosyidi Dwi Prastiyo Handayani, Agil Fitri Januarti Jaya Ekaputri Mohammad Sulton Nindyawati Nindyawati Pertiwi, Ziza Ayu Razak, Rafiza Binti Abd. Rosyidi, Ditya Hafidz Rr. Poppy Puspitasari Sulasmono, Raden Ian Tamami, Fajar Titi Rahayuningsih Titi Rahayuningsing Wardana, Erik Fadilah Kusuma