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
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ISSN | 0950-0618 |
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 |
DOI | 10.1016/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 |
推荐引用方式 GB/T 7714 | 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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