利用飞灰烧结陶粒制备实心发泡自保温砌块

黄建立; 金宜英; 舒郅斐; 马欣欣; 褚旭

doi:10.13205/j.hjgc.202306020

利用飞灰烧结陶粒制备实心发泡自保温砌块

doi: 10.13205/j.hjgc.202306020

清华大学环境学院, 北京 100084

基金项目:

国家重点研发项目"固废资源化专项"（2019YFC1906905-5）

详细信息

作者简介:
黄建立(1993-),男,博士研究生,主要从事固废资源化工作。1263006922@qq.com

通讯作者:
金宜英(1974-),副研究员,主要从事固体废物处理处置及资源化利用等研究工作。jinyy@mail.tsinghua.edu.cn

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出版历程
- 收稿日期: 2022-08-09
- 网络出版日期: 2023-09-02

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

School of Environment, Tsinghua University, Beijing 100084, China

摘要

摘要: 以生活垃圾焚烧飞灰烧结陶粒为主要轻集料，制备发泡型实心自保温砌块。研究了飞灰烧结陶粒配比对砌块力学性能和导热系数的影响，并且通过飞灰烧结陶粒与轻质商业化陶粒进行复配，强化保温砌块的保温性能。结果表明：砌块的导热系数随着飞灰烧结陶粒的掺量增加而下降，当添加60%飞灰烧结陶粒时，导热系数最低为0.47 W/（m·K）。当飞灰烧结陶粒与商业陶粒的比值为2：1时，砌块的导热系数、抗压强度和体积密度分别为0.33 W/（m·K）、6.89 MPa和1046.80 kg/m³，其中砌块的导热系数比不添加商业陶粒时降低了29.79%，具有较好的保温性能，为飞灰烧结陶粒制备轻质保温型建筑材料提供借鉴。
- 生活垃圾 /
- 焚烧飞灰 /
- 陶粒 /
- 保温砌块 /
- 发泡 /
- 导热系数
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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参考文献(15)

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