Potential use of foamed mortar (FM) for thermal upgrading of Chinese traditional Hui-style residences

Wei She (Lead / Corresponding author), M. R. Jones, Yunsheng Zhang, Xing Shi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The Hui-style residence is an important architectural heritage of China. The hollow wall structures are widely used to build its exterior wall system. However, the thermal performance of the hollow wall is no longer able to meet the new energy-saving and environmental requirement. This article describes a laboratory study of the development of foamed mortar (FM), with the potential for use in thermal upgrading of the Hui-style hollow wall system without dramatically changing its traditional structure. The key early age, physical, mechanical and thermal properties were systematically measured. Two extended models were respectively developed to calculate compressive strength and thermal conductivity, as a function of porosity. Environment chamber test was also employed to investigate the effectiveness of this novel thermal upgrading approach and the results show that filling the voids with FM can effectively improve the overall thermal resistance of the hollow wall system by 44%, which is almost equal to the overall thermal resistance when using the more expensive commercial inorganic stucco system. In addition, the combination of these two methods yielded an overall thermal resistance of 0.701 m2·K/W, which is even higher than 0.67 m2·K/W for the code required in the hot summer/cold winter climate zone.

Original languageEnglish
Pages (from-to)775-793
Number of pages19
JournalInternational Journal of Architectural Heritage: Conservation, Analysis and Restoration (Internatioinal Journal of Architectural Heritage)
Issue number7
Early online date9 Sept 2014
Publication statusPublished - 3 Oct 2015


  • architectural heritage
  • environment chamber test
  • foamed mortar (FM)
  • Hui-style residences
  • strength model
  • thermal conductive model
  • thermal upgrading

ASJC Scopus subject areas

  • Conservation
  • Visual Arts and Performing Arts
  • Architecture


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