ABSTRACT
A two-dimensional heat, air and moisture transport model called hyglRC is adapted to simulate a well-documented field exposure of an aerated concrete wall section. Difficulties are encountered due to a few missing information on boundary conditions of the exposure and hygrothermal properties of aerated concrete. The paper presents how these inadequacies were overcome to simulate the hygrothermal behavior of the wall section. Appropriate assumptions were made due to justifiable reasons. Then the model provides temporal and spatial distributions of temperature and relative humidity for an extended period that are in excellent agreement with the documented field data. The paper presents the justifications for the assumptions and the comparison of experimental and simulation results.
