Using hazardous barium slag as a novel admixture for alkali activated slag cement
文献类型：期刊论文
| 作者 | Huang, Xiao2,3; Xin, Chen2,3; Li, Jiang-shan2,3; Wang, Ping2,3; Liao, Shuai2,3; Poon, Chi Sun1,2; Xue, Qiang2,3
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| 刊名 | CEMENT & CONCRETE COMPOSITES
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| 出版日期 | 2022 |
| 卷号 | 125页码:11 |
| 关键词 | Alkali activated slag Barium slag Unconfined compressive strength Pore structure Hydration products |
| ISSN号 | 0958-9465 |
| DOI | 10.1016/j.cemconcomp.2021.104332 |
| 英文摘要 | Barium slag (BS) is a hazardous industrial solid waste formed during the production of barium carbonate. The accumulated stock of BS in China has exceeded 10 million tons, which urgently needs to be recycled in an efficient and sustainable way. BS contains a lot of soluble Ba2+ with a leaching concentration up to 2000 mg/L in water. Meanwhile, Ba2+ is an alkali-earth metal which can activate ground granulated blast furnace slag (GGBFS). This paper explores the possibility of incorporation BS as an admixture for alkali activated slag (AAS) cement. The mechanical property and microstructure evolution of AAS pastes with addition of BS are investigated in comparison with pure AAS paste. The results indicate that the addition of BS could significantly enhance mechanical strength of AAS paste, attributing to the increased hydration degree and the formation of dense pore structure. In addition, the leaching concentration of Na+ shows a significant decline by incorporation of BS in AAS paste, associated with the changed composition of hydration products. Therefore, BS is a promising admixture for AAS cement and holds great potential for promotion and application. |
| 资助项目 | National Key Research and Development Program[2019YFC1804002] ; National Natural Science Foundation of China[42007260] ; National Natural Science Foundation of China/Hong Kong Research Grants Council[51861165104] ; University Grants Committee Joint Research Scheme[51861165104] ; China Postdoctoral Science Foundation[2021M693364] ; Youth Innovation Promotion Association CAS[2017376] ; CAS Pioneer Hundred Talents Program in China |
| WOS研究方向 | Construction & Building Technology ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000744276500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34380]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jiang-shan; Xue, Qiang |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China 2.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Xiao,Xin, Chen,Li, Jiang-shan,et al. Using hazardous barium slag as a novel admixture for alkali activated slag cement[J]. CEMENT & CONCRETE COMPOSITES,2022,125:11. |
| APA | Huang, Xiao.,Xin, Chen.,Li, Jiang-shan.,Wang, Ping.,Liao, Shuai.,...&Xue, Qiang.(2022).Using hazardous barium slag as a novel admixture for alkali activated slag cement.CEMENT & CONCRETE COMPOSITES,125,11. |
| MLA | Huang, Xiao,et al."Using hazardous barium slag as a novel admixture for alkali activated slag cement".CEMENT & CONCRETE COMPOSITES 125(2022):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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