PREPARATION OF FOAMED SELF-INSULATING BLOCKS USING FLY ASH SINTERED CERAMSITE

HUANG Jianli; JIN Yiying; SHU Zhifei; MA Xinxin; CHU Xu

doi:10.13205/j.hjgc.202306020

Volume 41 Issue 6

Jun. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(6): 151-156

HUANG Jianli, JIN Yiying, SHU Zhifei, MA Xinxin, CHU Xu. PREPARATION OF FOAMED SELF-INSULATING BLOCKS USING FLY ASH SINTERED CERAMSITE[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 151-156. doi: 10.13205/j.hjgc.202306020

Citation:

HUANG Jianli, JIN Yiying, SHU Zhifei, MA Xinxin, CHU Xu. PREPARATION OF FOAMED SELF-INSULATING BLOCKS USING FLY ASH SINTERED CERAMSITE[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 151-156. doi: 10.13205/j.hjgc.202306020

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PREPARATION OF FOAMED SELF-INSULATING BLOCKS USING FLY ASH SINTERED CERAMSITE

doi: 10.13205/j.hjgc.202306020

School of Environment, Tsinghua University, Beijing 100084, China

Received Date: 2022-08-09
Available Online: 2023-09-02

Abstract

Abstract

In this paper, foamed self-insulating blocks were prepared using fly ash sintered ceramsite as the main lightweight aggregate. The influence of the ratio of fly ash sintered ceramsite on the mechanical properties and thermal conductivity of the insulating blocks was studied, and the thermal insulation performance of the thermal insulating block was enhanced by adding a certain amount of lightweight commercial ceramsite. The results showed that the thermal conductivity of the blocks decreased with the increasing production of fly ash sintered ceramsite, with a lowest value of 0.47 W/(m·K), when the ratio of fly ash sintered ceramsite at 60%. When the ratio of fly ash sintered ceramsite and commercial ceramsite was 2:1, the thermal conductivity, compressive strength and bulk density of the blocks were 0.33 W/(m·K), 6.89 MPa and 1046.80 kg/m³, respectively, and the thermal conductivity of the block was reduced by 29.79% when compared to the block without adding commercial ceramsite, indicating good thermal insulation performance. This study provides a guideline to produce lightweight thermal insulation building materials using fly ash sintered ceramsite.
- municipal solid waste,
- incineration fly ash,
- ceramsite,
- insulating block,
- foaming,
- thermal conductivity

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References

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