Crystallization of tricalcium silicate blended with different silica powder dosages at high temperature
文献类型：期刊论文
| 作者 | Wei, Tingcong4; Cheng, Xiaowei3,4; Liu, Huiting2; Zhang, Hua2; Zhang, Liwei1; Mei, Kaiyuan1,4; Zhang, Chunmei4; Liu, Kaiqiang4; Zhuang, Jia4 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-01-17 |
| 卷号 | 316页码:13 |
| 关键词 | High temperature Tricalcium silicate Silica powder Microhardness Microstructure Crystallization |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2021.125884 |
| 英文摘要 | The effect of silica powder dosage on the mechanical properties and microstructure of C3S, especially on the crystallization transformation of hydration products, was studied by VHT, XRD, TGA, SEM-EDS and TEM. The results showed that at 230 degrees C, the optimal amount of silica powder added was 40%, and the Vickers hardness increased by 39.21%. With increasing silica powder dosage, the contents of hillebrandite, jaffeite, and rein-hardbraunsite continued to decrease, and the content of xonotlite continued to increase. Coarseness of the microstructure at high temperature was the main reason for the deterioration of mechanical properties, and the dense structure composed of xonotlite was beneficial to improve the mechanical properties. The microscopic morphology and crystal structure of hillebrandite, jaffeite, reinhardbraunsite and xonotlite were confirmed. These hydration products were all single crystals. C-S-H in the C3S-silica powder system decalcified and produced large amounts of Si-OH, and silica powder obtained calcium from C-S-H. Si-OH on the surface of silica powder polymerized with Si-OH in decalcified C-S-H or interacted with silicate ions in the hydration system, which formed xonotlite. |
| 资助项目 | Sichuan Science and Technology Program[2021YFQ0045] ; SWPU Graduate Research Innovation Fund Project[2021CXZD31] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000753465700002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34490]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Cheng, Xiaowei; Zhuang, Jia |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China 2.CNPC Drilling Res Inst, Beijing 102206, Peoples R China 3.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Explorat, Chengdu 610500, Peoples R China 4.Southwest Petr Univ, Sch New Energy & Mat, Chengdu 610500, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Tingcong,Cheng, Xiaowei,Liu, Huiting,et al. Crystallization of tricalcium silicate blended with different silica powder dosages at high temperature[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,316:13. |
| APA | Wei, Tingcong.,Cheng, Xiaowei.,Liu, Huiting.,Zhang, Hua.,Zhang, Liwei.,...&Zhuang, Jia.(2022).Crystallization of tricalcium silicate blended with different silica powder dosages at high temperature.CONSTRUCTION AND BUILDING MATERIALS,316,13. |
| MLA | Wei, Tingcong,et al."Crystallization of tricalcium silicate blended with different silica powder dosages at high temperature".CONSTRUCTION AND BUILDING MATERIALS 316(2022):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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