Proceedings of the 11th International Applied Business and Engineering Conference, ABEC 2023, September 21st, 2023, Bengkalis, Riau, Indonesia

Research Article

Use of Slag in The Wash Water to Restore The Concrete Properties

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  • @INPROCEEDINGS{10.4108/eai.21-9-2023.2342900,
        author={Amir  Fauzi and Aulia  Rachman and Edi  Majuar and Sulaiman  Sulaiman and Fauzi A Gani and Ibrahim  Ibrahim and Mulizar  Mulizar and Syarwan  Syarwan and Erna  Yusniyanti},
        title={Use of Slag in The Wash Water to Restore The Concrete Properties},
        proceedings={Proceedings of the 11th International Applied Business and Engineering Conference, ABEC 2023, September 21st, 2023, Bengkalis, Riau, Indonesia},
        publisher={EAI},
        proceedings_a={ABEC},
        year={2024},
        month={2},
        keywords={steel slag setting time heat of hydration compressive strength ion rapid chloride permeability test drying shrinkage},
        doi={10.4108/eai.21-9-2023.2342900}
    }
    
  • Amir Fauzi
    Aulia Rachman
    Edi Majuar
    Sulaiman Sulaiman
    Fauzi A Gani
    Ibrahim Ibrahim
    Mulizar Mulizar
    Syarwan Syarwan
    Erna Yusniyanti
    Year: 2024
    Use of Slag in The Wash Water to Restore The Concrete Properties
    ABEC
    EAI
    DOI: 10.4108/eai.21-9-2023.2342900
Amir Fauzi1,*, Aulia Rachman1, Edi Majuar1, Sulaiman Sulaiman1, Fauzi A Gani1, Ibrahim Ibrahim1, Mulizar Mulizar1, Syarwan Syarwan1, Erna Yusniyanti1
  • 1: Politeknik Negeri Lhokseumawe
*Contact email: amirfauzi@pnl.ac.id

Abstract

Steel slag is a by-product material from the combustion of steel in the electric-arc furnaces. The previous study mentioned the steel slag with 3% cement replacement improved the concrete properties. In addition, the disposal of wash water to the landfill had an impact on the environment. So, there was a desire to reuse the wash water as the mixing water in the concrete. However, it caused a decrease in the concrete properties. This study analyzed 50% wash water of the total mixing water with support of 1% and 2% steel slag of cement replacement. The wash water consisted of the cement water from the previous concrete mixing. This study used the mortar with the w/c of 0.52 as the sample. The results showed that the steel slag with 1% and 2% in 50% wash water in the mixing water had similar properties to conventional concrete, especially setting time, compressive strength, and ion rapid chloride permeability. Yet, it improved the hydration heat and shrinkage of concrete.