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Equilibrium relative humidity method used to determine the sorption isotherm of autoclaved aerated concrete

机译:平衡相对湿度法确定高压灭菌加气混凝土的吸附等温线

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The sorption isotherm of porous building material is basic information needed for the design and maintenance of materials. The equilibrium moisture content (EMC) method is used to determine this physical property. In this study, the equilibrium relative humidity (ERH) method was used to determine the adsorption data for autoclaved aerated concrete at seven temperatures and found that the ERH method could be used to determine the sorption data within a short time. Comparing with previous published data, no significant difference could be found at humidity >20%. Two different sizes of samples (small and large) revealed the same EMC data throughout the whole relative humidity (RH) range. The Oswin equation was the best ERH model for adsorption isotherm data. A temperature term could be incorporated into model for the adsorption data. Sorption isotherm data for other building materials could be determined with the ERH method.
机译:多孔建筑材料的吸附等温线是材料设计和维护所需的基本信息。平衡水分含量(EMC)方法用于确定该物理性质。在这项研究中,平衡相对湿度(ERH)方法用于确定高压灭菌加气混凝土在七个温度下的吸附数据,并发现ERH方法可用于在短时间内确定吸附数据。与以前发表的数据相比,湿度> 20%时没有发现显着差异。在整个相对湿度(RH)范围内,两种不同大小的样品(大小)均显示相同的EMC数据。 Oswin方程是吸附等温线数据的最佳ERH模型。可以将温度项纳入吸附数据的模型中。其他建筑材料的吸附等温线数据可以使用ERH方法确定。

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