Preparation of sintered foamed ceramics derived entirely from coal fly ash
Luc, Yang1,2; Zheng, Shili1; Ma, Shuhua1; Liu, Chunli1,2; Wang, Xiaohui1
2018-02-28
发表期刊CONSTRUCTION AND BUILDING MATERIALS
ISSN0950-0618
卷号163页码:529-538
摘要A new foamed ceramic was successfully synthesized entirely from coal fly ash (CFA). Before sintering, the CFA was pretreated with an alkali activation that evenly coated CFA particles with a layer of hydroxysodalite crystals. Because of the pretreatment, the alkali activated CFA underwent a self-foaming reaction during sintering. When sintered at 1200 degrees C, the foamed ceramics exhibited optimal properties, including an apparent density of 0.41 g/cm(3), porosity of 83.60%, a compressive strength of 8.3 MPa, and thermal conductivity of 0.0983 W/m.K. The leaching toxicity tests revealed that the hazardous heavy metals were encapsulated within the glassy phases during sintering. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Coal Fly Ash Alkali Activation Foamed Ceramic Thermal Insulation Property Leaching Toxicity
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.conbuildmat.2017.12.102
收录类别SCI
语种英语
关键词[WOS]FOAMING AGENT ; WASTE GLASS ; RED MUD ; SILICATE ; DYNAMICS ; CONCRETE ; TILES
WOS研究方向Construction & Building Technology ; Engineering ; Materials Science
WOS类目Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
项目资助者Major State Basic Research Development Program of China(2013CB632601) ; Xilingol Vocational College ; Defar (plain) Technology Co., Ltd.
WOS记录号WOS:000426225200050
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23994
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Luc, Yang,Zheng, Shili,Ma, Shuhua,et al. Preparation of sintered foamed ceramics derived entirely from coal fly ash[J]. CONSTRUCTION AND BUILDING MATERIALS,2018,163:529-538.
APA Luc, Yang,Zheng, Shili,Ma, Shuhua,Liu, Chunli,&Wang, Xiaohui.(2018).Preparation of sintered foamed ceramics derived entirely from coal fly ash.CONSTRUCTION AND BUILDING MATERIALS,163,529-538.
MLA Luc, Yang,et al."Preparation of sintered foamed ceramics derived entirely from coal fly ash".CONSTRUCTION AND BUILDING MATERIALS 163(2018):529-538.
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