Research Article
Use of Slag in The Wash Water to Restore The Concrete Properties
@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
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.
