Thermal Performance Of Rammed Earth Wall

Rammed earth dwellings is a valuable asset in human architectural history,the study about traditional rammed earth dwellings ecological construction experience has a great strategic significance of exploring the development of modern green building and sustainable building;Nevertheless,the public understanding of rammed earth dwellings seems to have some misunderstandings that even the rammed earth construction in our country has been abandoned in once;While the government starts to vigorously promote low-carbon environmental protection slogan about green buildings as a result of the public demand for the interior quality of life also increases;Therefore,how to make a melody back in this traditional form of green building should be concerned among the subjects of construction workers.The paper starts from the thermodynamic performance of dwelling houses,;in the second chapter studies and summarizes the factors affecting the thermal performance of rammed earth materials;The third chapter discusses the forms and characteristics of rammed earth wall of heat preservation and also calciulate about the insulation in winter and summer of the rammed earth wall in different climate zones;The fourth chapter uses the Design Builder software,to simulate the thermal performance of rammed earth construction,and has made the comparison with the original building in Bailong village.Here are some innovations in the following ways:Firstly.Obtained raw soil material chemical composition,grain size distribution,liquid plastic limit indicators,etc through a series of basic experiment rammed earth material thermal physical properties about the region of Xi ’an and Urumqi.then summarize the rule of raw soil material density and the moisture content of raw soil material coefficient of thermal conductivity to give some numerical reference for the design of rammed earth construction in our country.Secondly.According to the building climate division,the rammed earth construction who meets the standards of winter and summer heat insulation about wall thickness in different climate zone has been calculated,then ecommend the thickness value of the heavily rammed earth wall and sandwich thermal insulation rammed earth wall which fits the building conditions in different climate zones.Finally.Utilizing the Design Builder software to simulate the building energy consumption which is based on the original building model and also give one recommendation about one sandwich thermal insulation rammed earth wall construnctions in local zone.