Desalination Of Historical Masonry Using
Hydrophilic Mineral Wool Boards
Author(s)
P. Michálek, V. Tydlitát, M. Jerman & R. Černý
Abstract
In the desalination measures hydrophilic mineral wool can be considered as a
possible alternative to the commonly used cellulose. Contrary to cellulose, it can
be used repeatedly, and its effectiveness is higher because of the dominant mode
of water transport along the hydrophilic fibers. In this paper, experimental
investigation of desalination potential of several different types of hydrophilic
mineral wools is performed. The obtained results show that high-density
materials are the most effective for this type of application.
Keywords: desalination, hydrophilic mineral wool, water transport, salt
solution transport.
1 Introduction
Avoiding water penetration into components of building structures is a
fundamental principle for their maintenance. The most important mitigation
method is prevention through the physical separation of building materials from
soil moisture and salts with the traditional damp-proof course. This is typically
an impermeable barrier such as plastic, glazed brick, bitumen. Using such
protection measures in historical masonry is, however, mostly not feasible.
Therefore, it is necessary to deal with consequences of salt penetration into the
structural elements and use repeatedly desalination techniques.
In existing salt-laden structures salts can be removed through poulticing and
in some cases the affected masonry may be replaced. However, in the past few
decades the cost of such replacement has led to increasing use of chemical dampproof
courses in the form of injected siloxane.
Hydrophilic mineral wool seems to be a perspective material for desalination
purposes. Hydrophilic admixtures in mineral wool accelerate liquid moisture
Keywords
desalination, hydrophilic mineral wool, water transport, salt
solution transport.
Related Book
Other papers in this volume
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