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庄    炜¹  ,   曹权宇² ,  李    永³ ,  郝文辉⁴ ,  李效禹⁵

( 1 .  青县住房和城乡建设局 ，河北 沧州 062650 ;  2.  河北融舟科技发展有限公司 ，河北 石家庄 050000 ;

3 .  河北省建筑科学研究院有限公司 ，河北 石家庄 050227 ;  4.  河北科技大学 建筑工程学院，

河北 石家庄 050018 ;  5 .  中国建筑科学研究院有限公司 ，北京 100013)

摘   要：为探究蒸压加气混凝土砌块在建筑节能方面存在的问题，利用 AIRPAK 软件对蒸压加气混凝土砌 块墙体的热工性能进行研究。通过对300 mm 厚的 B04 级蒸压加气混凝土砌块墙体进行不同厚度砌筑灰缝进行建模研究，探讨不同灰缝厚度情况下蒸压加气混凝土砌块墙体传热系数变化情况以及在墙体外侧粘贴分别 25 mm 和50 mm 石墨聚苯板保温时灰缝对墙体传热系数的影响。结果表明： 当砌筑灰缝厚度为8 ~ 15  mm 时 ，墙体传热系数与不考虑灰缝时的传热系数增加比例为 15. 152 % ~ 31 . 313 % ,  在建筑热工计算时不能忽视灰缝对墙体传热造成的影响 ；随着保温层厚度的增加，灰缝对传热系数的影响逐渐减小，但不可忽略 ；当保温层厚度为25 mm 和 50 mm 时，传热系数增加比例分别为 6. 584 % ~ 15. 265  % 和 4. 231  %~ 21 . 154  % 。

关键词：灰缝 ；砌筑砂浆 ；传热系数 ；蒸压加气混凝土砌块

中图分类号：TU37           

文献标志码：A            

文章编号： 1005- 8249   (2024)  04- 0154- 04 

DOI:10. 19860/j.cnki.issn1005 - 8249.2024.04.028

 

ZHUANG Wei ¹  ,  CAO quanyu² ,  LI Yong³  ,  HAO Wenhui⁴ ,  LI Xiaoyu⁵

( 1 . Qingxian Housing and Urban- Rural  Development Bureau ,  Cangzhou 062650 ,  China;

2. Hebei Rongzhou Technology Development Co. ，Ltd. ，Shijiazhuang 050000 ,  China;

3 . Hebei Academy of Building Science Co. ，Ltd. ，Shijiazhuang 050227 ,  China;

4. College of Civil Engineering ,  Hebei University of Science and Technology ,  Shijiazhuang 050018 ,  China;

5 . China Academy of Building Research Co. ，Ltd. ，Beijing 100013 ,  China)

Abstract: In order to explore the problems existing in building energy saving of autoclaved aerated concrete block, the thermal performance of autoclaved aerated concrete block wall is studied by AIRPAK software in this paper. Through modeling research on the ash joint of B04 autoclaved aerated concrete block wall with different thickness of 300 mm, the change of heat transfer coefficient of autoclaved aerated concrete block wall with different ash joint thickness and the influence of ash joint on heat transfer coefficient of wall with 25 mm and 50 mm graphite polystyrene board pasted on the outside of wall are discussed. The results show that when the thickness of the ash joint is 8~15 mm, the increase ratio of the heat transfer coefficient of the wall is 15.152% ~31.313 %, and the influence of the ash joint on the heat transfer of the wall cannot be ignored in the calculation of building thermal engineering. With the increase of the thickness of the insulation layer, the influence of the ash joint on the heat transfer coefficient decreases gradually, but it can not be ignored. When the thickness of insulation layer is 25 mm and 50 mm, the increase ratio of heat transfer coefficient is 6.584% ~15.265 % and 4.231% ~21.154 %, respectively.

Keywords: thickness of ash seam; thermal performance; teat transfer coefficient; tutoclaved aerated concrete block

作者简介：庄   炜  (1988—) ,  男 ，本科 ，助理工程师 ，研究方向：建筑节能管理。

通信作者：李   永  (1981 —) ,   男 ，硕士 ，教授级高级工程师 ，研究方向：建筑热工。

收稿日期：2024- 02- 27