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Impact of accelerated carbonation on geotechnical properties of recycled soil from construction sludge stabilized with paper sludge ash-based stabilizer and blast furnace cement
http://hdl.handle.net/10131/0002002187
http://hdl.handle.net/10131/0002002187645b590a-4a74-47ca-babf-bcc77ad0edb3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
1-s2.0-S2590123025040940-main.pdf (25.5 MB)
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| アイテムタイプ | デフォルトアイテムタイプ（フル）(1) | |||||||||||||||||||||
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| 公開日 | 2025-12-18 | |||||||||||||||||||||
| タイトル | ||||||||||||||||||||||
| タイトル | Impact of accelerated carbonation on geotechnical properties of recycled soil from construction sludge stabilized with paper sludge ash-based stabilizer and blast furnace cement | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 作成者 |
Bui, Anh Thang
× Bui, Anh Thang
ORCID
0009-0008-2494-9129
× Hayano, Kimitoshi
e-Rad_Researcher
40302632
× Yamauchi, Hiromoto
× To, Thi Phuong Anh
ORCID
0009-0009-7786-4206
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| アクセス権 | ||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||||
| 権利情報 | ||||||||||||||||||||||
| 権利情報Resource | https://creativecommons.org/licenses/by/4.0/ | |||||||||||||||||||||
| 権利情報 | Creative Commons Attribution 4.0 International | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 主題 | ||||||||||||||||||||||
| 主題 | Construction sludge(en), Accelerated carbonation(en), Paper sludge ash-based stabilizer(en), Blast furnace cement(en), Recycled soil(en) | |||||||||||||||||||||
| 内容記述 | ||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||
| 内容記述 | In Japan, it is imperative to develop sustainable methods for treating and recycling construction sludge. Use of conventional highly alkaline binder additives such as cement and lime risks environmental contamination. As a sustainable alternative, an accelerated carbonation method using carbon dioxide (CO2) was developed, and its effectiveness in treating recycled sludge stabilized with a paper sludge ash-based stabilizer and blast furnace cement type B was demonstrated. However, a significant research gap remains in understanding how carbonation influences geotechnical properties because most prior studies primarily focused on pH reduction via additive selection. This study addresses this gap through a comparative experimental analysis of carbonated and non-carbonated soil samples. The innovation of this work lies in evaluating carbonation as both an environmental neutralization process and a treatment that alters compaction, strength, and permeability. The results showed that carbonation reduced the soil pH to approximately 8.6, meeting environmental standards, while improving the maximum dry density (ρdmax) and compaction behavior. However, the cone index (qc) results revealed a reduction in the recycled soil strength owing to hydrate decomposition and weakened particle bonds. This can be minimized by maintaining optimal water content before treatment. Furthermore, analysis based on the k15 coefficient (permeability at 15 ◦C) suggests that carbonation affects hydraulic conductivity. In some cases, hydraulic conductivity increases because of ettringite decomposition, leading to the loss of crystalline structure and creation of continuous voids. These findings highlight that, although carbonation offers environmental benefits, its application must be carefully managed to ensure compliance with geotechnical performance requirements. | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 言語 | ||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||
| 関連情報 | ||||||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.rineng.2025.108044 | |||||||||||||||||||||
| 収録物識別子 | ||||||||||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||||||||||
| 収録物識別子 | 2590-1230 | |||||||||||||||||||||
| 収録物名 | ||||||||||||||||||||||
| 収録物名 | Results in Engineering | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 巻 | ||||||||||||||||||||||
| 巻 | 28 | |||||||||||||||||||||
| ページ数 | ||||||||||||||||||||||
| ページ数 | 17 | |||||||||||||||||||||
| 開始ページ | ||||||||||||||||||||||
| 開始ページ | 108044 | |||||||||||||||||||||
| 日付 | ||||||||||||||||||||||
| 日付 | 2025-11-06 | |||||||||||||||||||||
| 日付タイプ | Issued | |||||||||||||||||||||
| 日付 | ||||||||||||||||||||||
| 日付 | 2025-12-18 | |||||||||||||||||||||
| 日付タイプ | Available | |||||||||||||||||||||
