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All Journal Journal of Advanced Civil and Environmental Engineering Journal Integration of Management Studies
Laory, Irwanda
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Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Environmental Science

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Evaluating the Socio-Economic Effects of Fly Ash and Agricultural Waste on the Construction Sector Laory, Irwanda; Ekaputri, Januarti Jaya; Kusbiantoro, Andri; Rahadi, Raden Aswin; Setiamarga, Davin H. E.; Adha, Augusta; Afgani, Kurnia Fajar
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.
Performance and Durability of High-Volume Fly Ash Concrete Incorporating Bacillus safensis : A Comparative Study of Class C and Class F Fly Ash Amini, Iqlima Nuril; Syah, Dzikrie Fikriyan; Setiamarga, Davin H. Ekaputra; Basoeki, Makno; Danardi, Luki; Laory, Irwanda; Anda, Martin; Maulana, Mahendra Andiek; Wulandari, Meity; Ekaputri, Januarti Jaya
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 8, No 2 (2025): October
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.8.2.8-21

Abstract

This study investigates the performance and durability of high-volume fly ash (HVFA) concrete enriched with Bacillus safensis, focusing on the comparative influence of Class C and Class F fly ash. Concrete mixtures were prepared with varying proportions of both fly ash types, with and without microbial addition, and tested for fresh and hardened properties including compressive strength, splitting tensile strength, porosity, and workability. Durability was further evaluated using the rapid chloride penetration test (RCPT) and accelerated corrosion test (ACT).Results showed that Class C fly ash, with its higher calcium content, produced a denser microstructure and improved early compressive strength. In contrast, Class F fly ash supported more favorable long-term microbial activity due to greater porosity and water availability. Incorporating Bacillus safensis enhanced compressive strength by up to 8% and significantly reduced chloride ion penetration, particularly in Class F fly ash concrete, through calcium carbonate precipitation within the pores. However, microbial addition was associated with reduced splitting tensile strength, likely due to differences in failure mechanisms. Long-term observations revealed strength gains of up to 13.3% after one year in microbial HVFA concrete.These findings demonstrate the synergistic contribution of Bacillus safensis and the effect of fly ash type to the improvement of sustainability and durability of HVFA concrete.
Co-Authors Adha, Augusta Afgani, Kurnia Fajar Amini, Iqlima Nuril Anda, Martin Basoeki, Makno Danardi, Luki Januarti Jaya Ekaputri Kusbiantoro, Andri Maulana, Mahendra Andiek Raden Aswin Rahadi Setiamarga, Davin H. E. Setiamarga, Davin H. Ekaputra Syah, Dzikrie Fikriyan Wulandari, Meity