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首页> 外文期刊>Transport in Porous Media >Correlation of Water Vapor Permeability with Microstructure Characteristics of Building Materials Using Robust Chemometrics
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Correlation of Water Vapor Permeability with Microstructure Characteristics of Building Materials Using Robust Chemometrics

机译：使用稳健的化学计量学将水蒸气渗透率与建筑材料的微观结构特征相关

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摘要

This paper studies various microstructure parameters of natural and artificial building materials and aims to their correlation to the water vapor permeability. Three categories of building materials were investigated: stones, bricks, and plasters. Mercury intrusion porosimetry was applied in order to obtain the materials microstructure characteristics, a variety of pore size distributions and pore structure measurements, such as total porosity. The water vapor permeability of materials was determined experimentally according to ASTM standard E96-00. A robust principal component regression approach, coupled with multiple outlier detection, was applied in order to correlate water vapor permeability values to pore size distributions. A good quality correlation model was found by utilizing relative specific pore volume and relative specific pore surface distributions, whereas using pore structure measurements, such as total porosity, the correlation results were very poor. From the results, specific ranges of pore size distribution, corresponding to pores radius sizes greater than (10,upmu text{ m }) and between 1.778 and (0.421,upmu text{ m }), contribute to the water vapor permeability of the materials.
机译：本文研究了天然和人造建筑材料的各种微观结构参数，旨在使其与水蒸气渗透性相关。研究了三类建筑材料：石头，砖块和灰泥。为了获得材料的微观结构特征，各种孔径分布和孔隙结构测量值（例如总孔隙率），采用了汞侵入孔隙率法。材料的水蒸气渗透性是根据ASTM标准E96-00通过实验确定的。为了将水蒸气渗透率值与孔径分布相关联，应用了鲁棒的主成分回归方法以及多个异常值检测。利用相对比孔体积和相对比孔表面分布发现了良好的质量相关模型，而使用孔结构测量（如总孔隙率），相关结果非常差。根据结果​​，孔径分布的特定范围，对应于大于（10，且在1.778和（0.421，μm）之间的孔半径大小），有助于材料的水蒸气渗透性。

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