Recycling of blast furnace slag to prepare calcium silicate hydrate by mechanical-chemical co-activation and its application to calcium silicate fireproof board
文献类型：期刊论文
| 作者 | Qi, Fang1,2; Sun, Jian3; Zhu, Ganyu2; Li, Huiquan2,4; Wu, Yongji5; Li, Shaopeng2; Yang, Chennian2; Zheng, Jun2; Zhang, Yimin1 |
| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 165页码:1-12 |
| 关键词 | Calcium silicate hydrate Calcium silicate fireproof board Water quenched slag Mechano-chemical co -activation |
| ISSN号 | 0957-5820 |
| DOI | 10.1016/j.psep.2022.06.062 |
| 英文摘要 | The high-value utilization of water quenched slag (WQS), one of the bulk byproducts originating from the iron manufacturing industry, remains an important subject in the environment. Through a mechano-chemical coactivation strategy, WQS can be used to prepare porous calcium silicate hydrate (C-S-H), which was applied as gelling filler to prepare fiber-reinforced calcium silicate fireproof board (FCSFB) and extremely improved its high-temperature performance and non-combustibility. The optimal activation conditions for WQS are ball milling time of 30 min, reaction temperature of 90 degrees C, reaction time of 5 h, and Ca/Si molar ratio of 1.5:1. The thermal conductivity for FCSFB prepared by the optimal A-WQS is 0.17 W/(m center dot K), and its overheating time of the applied temperature at 803.7 degrees C is 1335.5 s. The improvement mechanism of the performance of FCSFB can be attributed to the transformation of C-S-H toward more high crystallinity flaky tobermorite, which uniformly and closely combined with pulp fiber to form a micro-porous cavity structure to delay flame penetration period. The application of WQS in FCSFB can provide essential guidance for the utilization of other similar solid wastes. |
| WOS关键词 | ALUMINUM ; TESTS |
| 资助项目 | National Key R&D Program of China[2021YFC1910605] ; Projects of National Natural Science Foundation of China[U1810205] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000861634100001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R&D Program of China ; Projects of National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54939]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhu, Ganyu; Zhang, Yimin |
| 作者单位 | 1.Wuhan Univ Sci & Technol, Coll Resources & Environm Engn, State Environm Protect Key Lab Mineral Met Resourc, Wuhan 430081, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.China Coal Res Inst Corp Ltd, Coal Test Ctr, China Coal Technol & Engn Grp, Beijing 100013, Peoples R China 4.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 5.Guangdong Philigreen Bldg Mat Co Ltd, Huizhou 516800, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi, Fang,Sun, Jian,Zhu, Ganyu,et al. Recycling of blast furnace slag to prepare calcium silicate hydrate by mechanical-chemical co-activation and its application to calcium silicate fireproof board[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2022,165:1-12. |
| APA | Qi, Fang.,Sun, Jian.,Zhu, Ganyu.,Li, Huiquan.,Wu, Yongji.,...&Zhang, Yimin.(2022).Recycling of blast furnace slag to prepare calcium silicate hydrate by mechanical-chemical co-activation and its application to calcium silicate fireproof board.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,165,1-12. |
| MLA | Qi, Fang,et al."Recycling of blast furnace slag to prepare calcium silicate hydrate by mechanical-chemical co-activation and its application to calcium silicate fireproof board".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 165(2022):1-12. |
入库方式： OAI收割
来源：过程工程研究所
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