A study on Stabilization of Electric Arc Furnace Slag

Ting Kai Hu, Wei Hao Lee, Ta Wui Cheng, Chih Ta Tsai, Chang Ching Ho, Yu Kang Ling

研究成果: Paper

摘要

The electric arc furnace oxidizing slag is produced by the steel plant as an industrial by-product, with a production of 100 million tons in Taiwan annually. The purpose of this study was to stabilize the EAF oxidizing slag by using oxalic acid as a replacement for fine aggregates in cement mortar process and using geopolymer technology to prevent oxidizing slag expansion. The experimental results showed using oxalic acid could significantly stabilize the EAF oxidizing slag and the mechanical properties. On the other hand, the EAF oxidizing slag in the geopolymer system could completely inhibit the expansion. The test samples in geopolymer system had higher compressive strength than cement system. The 28 days compressive strength of geopolymer system and cement system were 30MPa and 22MPa, respectively. These results gave encouragement that the stabilized EAF oxidizing slag could be replaced as a feasible natural fine aggregate.

原文English
出版狀態Published - 2017 一月 1
事件14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017 - Sapporo, Hokkaido, Japan
持續時間: 2017 九月 262017 九月 29

Conference

Conference14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017
國家Japan
城市Sapporo, Hokkaido
期間17-09-2617-09-29

    指紋

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

引用此

Hu, T. K., Lee, W. H., Cheng, T. W., Tsai, C. T., Ho, C. C., & Ling, Y. K. (2017). A study on Stabilization of Electric Arc Furnace Slag. 論文發表於 14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017, Sapporo, Hokkaido, Japan.