Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials

The alkali activated fly ash-metakaolin based geopolymeric foaming materials were prepared at low temperature by use of fly ash,metakaolin,sodium hydroxide,sodium silicate as the main raw material.The effect of the types and contents of foaming agent on the pore structure and properties of the porou...

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Main Authors: Liu Ruiping, Wang Hui, Guo Fei, Dong Yue
Format: Article
Language:English
Published: Emergency Management Press 2019-02-01
Series:矿业科学学报
Subjects:
Online Access:http://kykxxb.cumtb.edu.cn/article/id/198
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author Liu Ruiping
Wang Hui
Guo Fei
Dong Yue
author_facet Liu Ruiping
Wang Hui
Guo Fei
Dong Yue
author_sort Liu Ruiping
collection DOAJ
description The alkali activated fly ash-metakaolin based geopolymeric foaming materials were prepared at low temperature by use of fly ash,metakaolin,sodium hydroxide,sodium silicate as the main raw material.The effect of the types and contents of foaming agent on the pore structure and properties of the porous geopolymer were studied,and the thermal stability and structure were also investigated. Compared to the aluminum and sodium borate,the foaming effect of hydrogen peroxide was better.The properties of geopolymeric foaming materials prepared in ths paper were with bulk density of 0.985 g/cm<sup>3</sup>,compressive strength of 8.9 MPa,lowest thermal conductivity of 0.10 W/ (m·K) and good thermal insulation effect,when the content of hydrogen peroxide was 0.5%,the conservation temperature was 40 ℃,conservation humidity was 70% and conservation time was 7 d.
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spelling doaj.art-c40f148f9b1e4b53a4a68ace280659352022-12-22T03:39:35ZengEmergency Management Press矿业科学学报2096-21932019-02-0141667110.19606/j.cnki.jmst.2019.01.00920190109Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materialsLiu Ruiping0Wang Hui1Guo Fei2Dong Yue3School of Mechanical Electronic and Information Engineering, China University of Mining and Techonology, Beijing 100083, ChinaSchool of Mechanical Electronic and Information Engineering, China University of Mining and Techonology, Beijing 100083, ChinaSchool of Mechanical Electronic and Information Engineering, China University of Mining and Techonology, Beijing 100083, ChinaSchool of Mechanical Electronic and Information Engineering, China University of Mining and Techonology, Beijing 100083, ChinaThe alkali activated fly ash-metakaolin based geopolymeric foaming materials were prepared at low temperature by use of fly ash,metakaolin,sodium hydroxide,sodium silicate as the main raw material.The effect of the types and contents of foaming agent on the pore structure and properties of the porous geopolymer were studied,and the thermal stability and structure were also investigated. Compared to the aluminum and sodium borate,the foaming effect of hydrogen peroxide was better.The properties of geopolymeric foaming materials prepared in ths paper were with bulk density of 0.985 g/cm<sup>3</sup>,compressive strength of 8.9 MPa,lowest thermal conductivity of 0.10 W/ (m·K) and good thermal insulation effect,when the content of hydrogen peroxide was 0.5%,the conservation temperature was 40 ℃,conservation humidity was 70% and conservation time was 7 d.http://kykxxb.cumtb.edu.cn/article/id/198geopolymerfly ashlightweight foambulk densitythermal insulation materials
spellingShingle Liu Ruiping
Wang Hui
Guo Fei
Dong Yue
Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials
矿业科学学报
geopolymer
fly ash
lightweight foam
bulk density
thermal insulation materials
title Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials
title_full Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials
title_fullStr Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials
title_full_unstemmed Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials
title_short Preparation and characterization of fly ash-metakaolin based geopolymeric foaming materials
title_sort preparation and characterization of fly ash metakaolin based geopolymeric foaming materials
topic geopolymer
fly ash
lightweight foam
bulk density
thermal insulation materials
url http://kykxxb.cumtb.edu.cn/article/id/198
work_keys_str_mv AT liuruiping preparationandcharacterizationofflyashmetakaolinbasedgeopolymericfoamingmaterials
AT wanghui preparationandcharacterizationofflyashmetakaolinbasedgeopolymericfoamingmaterials
AT guofei preparationandcharacterizationofflyashmetakaolinbasedgeopolymericfoamingmaterials
AT dongyue preparationandcharacterizationofflyashmetakaolinbasedgeopolymericfoamingmaterials