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Hygrothermal material properties for soils in building science

M. Kehrer ; Simon Pallin (Institutionen för bygg- och miljöteknik, Byggnadsteknologi)
12th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings, Clearwater, United States, 1-5 December 2013 (2013)
[Konferensbidrag, refereegranskat]

Hygrothermal performance of soils coupled to buildings is complicated because of the dearth of information on soil properties. However they are important when numerical simulation of coupled heat and moisture transport for below-grade building components are performed as their temperature and moisture content has an influence on the durability of the below-grade building component. Soils can be classified by soil texture. According to the Unified Soil Classification System (USCA), 12 different soils can be defined on the basis of three soil components: clay, sand, and silt. This study shows how existing material properties for typical American soils can be transferred and used for the calculation of the coupled heat and moisture transport of building components in contact with soil. Furthermore a thermal validation with field measurements under known boundary conditions is part of this study, too. Field measurements for soil temperature and moisture content for two specified soils are carried out right now under known boundary conditions. As these field measurements are not finished yet, the full hygrothermal validation is still missing.



Denna post skapades 2016-06-17.
CPL Pubid: 237837

 

Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Byggnadsteknologi

Ämnesområden

Samhällsbyggnadsteknik

Chalmers infrastruktur