[1]陈新孝,韩笛扬.牛粪灰(CMA)混凝土复合保温砌块设计及墙体传热分析[J].西安建筑科技大学学报(自然科学版),2023,55(01):60-68.[doi:10.15986/j.1006-7930.2023.01.008 ]
　CHEN Xinxiao,HAN Diyang.Design of CMA concrete composite insulation block and wall heat transfer analysis[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(01):60-68.[doi:10.15986/j.1006-7930.2023.01.008 ]
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牛粪灰(CMA)混凝土复合保温砌块设计及墙体传热分析()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
55
期数:
2023年01期
页码:
60-68
栏目:
出版日期:
2023-02-28

文章信息/Info

Title:
Design of CMA concrete composite insulation block and wall heat transfer analysis
文章编号:
1006-7930(2023)01-0060-09
作者:
陈新孝; 韩笛扬
(西京学院 陕西省混凝土结构安全与耐久性重点实验室,陕西 西安 710123)
Author(s):
CHEN Xinxiao;  HAN Diyang
(Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an 710123, China)
关键词:
牛粪灰(CMA);  保温砌块;  热阻;  传热系数
Keywords:
cattle manure ash;  insulation block;  thermal resistance;  heat transfer coefficient
分类号:
TU531.6
DOI:
10.15986/j.1006-7930.2023.01.008
文献标志码:
A
摘要:
牛粪灰(简称CMA)是一种质纯且成分相对稳定的畜禽养殖废弃物生物质灰.为探讨CMA混凝土复合保温砌块热工性能的影响因素,尝试采用单排孔、双排孔、错位双排孔以及保温材料替代横壁的CMA混凝土复合保温砌块,研究了在不同CMA掺量下各保温砌块的热阻值以及组合成墙体后的传热系数.结果表明:随着CMA掺量的增加,砌块的热阻值随之增大,墙体的传热系数随之减小; 在相同孔洞率条件下,砌块纵肋宽度越小,热阻越大,墙体传热系数越小; 在砌块内外横壁替换岩棉板和挤塑聚苯乙烯塑料板后,其保温性能明显提高,并得到了替换材料厚度与墙体传热系数关系.
Abstract:
Cattle manure ash(CMA)is a pure, non-toxic and harmful component of biomass ash. In order to study the factors affecting the thermal performance of CMA concrete composite insulation block, single row hole, double row hole, dislocation double row hole and insulation material were used to replace the transverse wall of CMA concrete composite insulation block. The thermal resistance value of each insulation block and the heat transfer coefficient after the composite wall were studied under different CMA content. The results show that with the increase of CMA content, the thermal resistance of the block increases, and the heat transfer coefficient of the wall decreases. Under the same cavity ratio, the smaller the width of the longitudinal rib, the greater the thermal resistance and the smaller the heat transfer coefficient of the wall. After replacing the rock wool board and extradited polystyrene plastic board on the inside and outside transverse walls of the block, the thermal insulation performance is improved obviously, and the relationship between the thickness of the replacement material and the heat transfer coefficient of the wall is obtained.

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相似文献/References:

[1]陈新孝,周述光,王有熙,等.牛粪灰(CMA)颗粒尺寸对水泥浆流变性的影响试验研究[J].西安建筑科技大学学报(自然科学版),2019,51(06):804.[doi:10.15986/j.1006-7930.2019.06.006]
　CHEN Xinxiao,ZHOU Shuguang,WANG Youxi,et al.Experimental research on effect of the particle size of CMA to cement slurry rheological properties[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(01):804.[doi:10.15986/j.1006-7930.2019.06.006]

备注/Memo

备注/Memo:
收稿日期:2021-08-16修改稿日期:2022-10-06
基金项目:陕西省自然科学基础研究计划项目(2020JM-641),天津市自然科学基金项目(19YFZCSN01140)
第一作者:陈新孝(1964—),男,工学博士,教授,主要从事绿色建筑材料及混凝土耐久性问题研究. E-mail: chenxinxiao@126.com
通信作者:韩笛扬(1996—),男,硕士研究生,主要从事混凝土材料性能和绿色建筑研究. E-mail: 867337090@qq.com
更新日期/Last Update: 2023-02-20