A novel process for synthesis of tobermorite fiber from high-alumina fly ash
Ding, Jian1,2; Tang, Zhenhua2; Ma, Shuhua2; Wang, Yuejiao2; Zheng, Shili2; Zhang, Yi2; Shen, Shirley3; Xie, Zongli3
2016
发表期刊CEMENT & CONCRETE COMPOSITES
ISSN0958-9465
卷号65期号:JAN页码:11-18
摘要A new two-step process was developed for the synthesis of tobermorite fiber from high alumina fly ash. The results reveal that high alumina extraction efficiency from the fly ash can be achieved In the first step and tobermorite fiber with excellent properties can be produced from the dealuminatton slag in the second step. FETEM images show that typical single crystal fibers with a length of 5-10 mu m and a length-to-diameter ratio of 50-100 have been synthesized successfully. The strength tests after compression molding demonstrate that the compressive and flexural strengths of the products are greater than 0.34 MPa and 0.85 MPa, respectively, with a low bulk density of 218 kg/m(3) and a thermal conductivity of 0.059 W/(m.k). It fully complies with China's national standards for calcium silicate insulation materials. Therefore, the fibers production is very promising to be used in the building external wall thermal insulation application. (C) 2015 Elsevier Ltd. All rights reserved.
关键词High-alumina Fly Ash Dealumination Slag Tobermorite Transmission Electron Microscopy Two-step Process
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cemconcomp.2015.10.017
收录类别SCI
语种英语
关键词[WOS]11 ANGSTROM TOBERMORITE ; C-S-H ; HYDROTHERMAL SYNTHESIS ; AL ; RECOVERY ; SILICATE ; RESIDUE ; COMPLEX
WOS研究方向Construction & Building Technology ; Materials Science
WOS类目Construction & Building Technology ; Materials Science, Composites
项目资助者National Science and Technology Support Program of China(2012BAF03B01)
WOS记录号WOS:000367700400002
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20254
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
3.CSIRO Mfg, Clayton, Vic 3169, Australia
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Ding, Jian,Tang, Zhenhua,Ma, Shuhua,et al. A novel process for synthesis of tobermorite fiber from high-alumina fly ash[J]. CEMENT & CONCRETE COMPOSITES,2016,65(JAN):11-18.
APA Ding, Jian.,Tang, Zhenhua.,Ma, Shuhua.,Wang, Yuejiao.,Zheng, Shili.,...&Xie, Zongli.(2016).A novel process for synthesis of tobermorite fiber from high-alumina fly ash.CEMENT & CONCRETE COMPOSITES,65(JAN),11-18.
MLA Ding, Jian,et al."A novel process for synthesis of tobermorite fiber from high-alumina fly ash".CEMENT & CONCRETE COMPOSITES 65.JAN(2016):11-18.
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