CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Ceramic tiles derived from coal fly ash: Preparation and mechanical characterization
Luo, Yang1,2; Zheng, Shili1; Ma, Shuhua1; Liu, Chunli1,2; Wang, Xiaohui1
2017-10-15
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume43Issue:15Pages:11953-11966
Abstract

Coal fly ash (CFA) accounts for a large fraction of the solid waste produced in China. Hence, there is an urgent need for the effective utilization of CFA, for example, as a raw material for ceramics production. In this study, clay-and feldspar-like materials fabricated by alkali activation pre-treatment of CFA were mixed with untreated CFA (regarded as a quartz-like material) and sintered to prepare fully ash-based ceramic tiles. The obtained tiles exhibited excellent sintering properties, e.g., low firing temperature and a wide sintering range; further, they showed better green strength (due to hydrogen bonding) and post-sintering performance (due to fluxing and mullite skeleton effects) than ceramic tiles produced exclusively from untreated CFA. The fully ash-based ceramic tiles sintered at 1100 degrees C exhibited optimal post-sintering properties (bulk density, 2.5 g/cm(3); rupture modulus, 50.1 MPa; and water absorption, 0%). Thus, the proposed method is well suited for preparing a novel kind of ceramic tiles completely derived from CFA, highlighting its importance in the field of fly ash ceramics.

KeywordCoal Fly Ash Alkali Activation Ceramic Tile Zeolite Hydroxysodalite
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.ceramint.2017.06.045
Indexed BySCI
Language英语
WOS KeywordPorcelain ; Behavior ; Alumina
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
Funding OrganizationNational Natural Science Foundation of China(51474199) ; Major State Basic Research Development Program of China(2013CB632601)
WOS IDWOS:000408287900053
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23182
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Luo, Yang,Zheng, Shili,Ma, Shuhua,et al. Ceramic tiles derived from coal fly ash: Preparation and mechanical characterization[J]. CERAMICS INTERNATIONAL,2017,43(15):11953-11966.
APA Luo, Yang,Zheng, Shili,Ma, Shuhua,Liu, Chunli,&Wang, Xiaohui.(2017).Ceramic tiles derived from coal fly ash: Preparation and mechanical characterization.CERAMICS INTERNATIONAL,43(15),11953-11966.
MLA Luo, Yang,et al."Ceramic tiles derived from coal fly ash: Preparation and mechanical characterization".CERAMICS INTERNATIONAL 43.15(2017):11953-11966.
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