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All Journal Jurnal Teknik Sipil J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Saliko, Maxidin
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Transportation

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ENVIRONMENTALLY FRIENDLY CONCRETE USING WASTE GLASS POWDER (WGP) AS A PARTIAL SUBSTITUTE OF CEMENT Olii, Muhammad Ramdhan; Sahrul Hidayat, Andi; Saliko, Maxidin; Santoso, Triyadi; Hippy, Mohamad Alfandi; Pakaya, Ririn
JURNAL TEKNIK SIPIL Vol 12, No 2 (2023): Volume 12 Nomor 2 November 2023
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jts.v12i2.32883

Abstract

The utilization of waste materials in concrete production is gaining significant attention as a means to mitigate environmental issues and promote sustainable construction practices. This study investigates the potential of waste glass powder (WGP) as a partial replacement for cement in concrete. The aim is to evaluate the effects of WGP on the properties and performance of concrete, with a focus on enhancing sustainability and reducing the environmental impact associated with cement production. The experimental investigation involved preparing concrete mixtures with varying proportions of WGP, ranging from 10% to 25%, as a partial replacement for cement. Based on the research findings, it can be concluded that the substitution of 20%WGP) for cement is the optimal dosage. The results of various tests and evaluations show that the concrete has desirable properties and performance characteristics at this level of replacement. This 20% substitution ratio strikes a balance between maintaining adequate compresive strength and improving the concrete's sustainability. In conclusion, the incorporation of WGP as a partial replacement for cement in concrete shows promises as an environmentally friendly and sustainable approach. Further research and optimization of mix proportions are recommended to maximize the benefits of utilizing WGP in concrete and promote its widespread application in the construction industry.
Compressive Strength Performance of Rice Husk Ash-Based Geopolymer Concrete with Fly Ash as a Secondary Material Olii, Muhammad Ramdhan; Saliko, Maxidin; Doda, Nurhayati; Nento, Sartan; Olii, Rizky Selly Nazarina
Jurnal Teknik Sipil dan Lingkungan Vol. 10 No. 2: October 2025
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.10.2.259-266

Abstract

Concrete production heavily relies on cement, whose manufacturing significantly contributes to carbon emissions, necessitating alternative materials for sustainable construction. This study investigates the effect of varying compositions of rice husk ash (RHA) and fly ash on the compressive strength and workability of concrete. Five variations of RHA and fly ash ratios (80:20, 75:25, 70:30, 65:35, and 60:40) were tested to identify the optimal mixture. The results show that the 60:40 ratio produced the highest compressive strength of 16.66 MPa and a slump value of 9.5 cm, indicating enhanced workability and mechanical performance. This finding highlights the complementary roles of RHA, which contributes to pozzolanic activity, and fly ash, which enhances hydration and cementitious properties. Excessive RHA content, however, leads to reduced strength due to its lower reactivity. The exponential trend observed in the compressive strength characteristics (R² = 0.9081) confirms the nonlinear relationship between material composition and performance. This research aligns with previous studies demonstrating the benefits of using industrial by-products in concrete. The findings underscore the potential of combining RHA and fly ash as an eco-friendly solution for high-strength concrete, promoting waste utilization and sustainability in the construction industry. Future studies should explore long-term durability and scaling for industrial applications.
Co-Authors Doda, Nurhayati Hippy, Mohamad Alfandi Nento, Sartan Olii, Muhammad Ramdhan Olii, Rizky Selly Nazarina Ririn Pakaya Sahrul Hidayat, Andi Santoso, Triyadi