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Sorption isotherm measurements for porous materials: A new hygroscopic method by A. Taher; H.J.H. Brouwers is a Engineering article available to read on EtoBox.

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The water sorption of materials can significantly affect their durability. While a wide range of techniques has been already introduced and implemented to measure the sorption behavior of materials, obtaining high-resolution data to describe the water sorption isotherm is still a challenging task. This is especially the case for materials with a complex sorption behavior such as concrete for which the pore structure is very complicated. The level of complexity increases when chloride is present in such structures. In this study, a hygroscopic technique is introduced to measure the sorption behavior of porous materials. By this technique, the sorption isotherm can be obtained by injecting water with a high level of control into a controlled environment where a sample is positioned. The amount of water can be added in steps resulting in high-resolution data for the sorption properties of the sample. The technique is evaluated for two porous materials: Portland cement mortar and sand-lime brick. The results are extensively compared with similar measured data available in the literature. In addition, the performance of the technique is evaluated for porous materials with initial chlori

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Author

A. Taher; H.J.H. Brouwers

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)