吸放湿性建築材料の実用的湿気物性同定に関する基礎的検討

概要

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Moisture has large influence on durability of houses, on moisture problems in a crawl space or basement, and also on energy conservation. Hygroscopic materials are getting much attention in this respect, several new materials are being developed. This paper proposes practical identification method of moisture properties of hygroscopic materials. Results are as follows: 1) Approximation by exponential function series to determine balancing weight of hygroscopic materials are discussed. 2) As a case study, sorption curve of diatomite tile, is evaluated by simplified transient absorption and desorption experiment. 3) Parameter identification method to determine vapor conductivity are discussed. Vapor conductivity obtained by the method is not only influenced by surface moisture transfer coefficient, but also significantly influenced by the coefficient of temperature gradient of moisture capacity, especially at the beginning of absorption process.
社団法人日本建築学会の論文
1998-11-30