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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
Source PublicationCEMENT & CONCRETE COMPOSITES
ISSN0958-9465
Volume65Issue:JANPages:11-18
AbstractA 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.
KeywordHigh-alumina Fly Ash Dealumination Slag Tobermorite Transmission Electron Microscopy Two-step Process
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cemconcomp.2015.10.017
Indexed BySCI
Language英语
WOS Keyword11 ANGSTROM TOBERMORITE ; C-S-H ; HYDROTHERMAL SYNTHESIS ; AL ; RECOVERY ; SILICATE ; RESIDUE ; COMPLEX
WOS Research AreaConstruction & Building Technology ; Materials Science
WOS SubjectConstruction & Building Technology ; Materials Science, Composites
Funding OrganizationNational Science and Technology Support Program of China(2012BAF03B01)
WOS IDWOS:000367700400002
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20254
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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