New test methods to verify the performance of chemical injections to deal with rising damp
article
The injection of chemical products, meant to penetrate in the capillaries of the materials composingan affected wall, is perhaps the most diffused method to deal with rising damp. The majority of thesechemical products are hydrophobic treatments; they can be either solvent-based or (increasingly) water-based. Traditionally, these products are liquid. In the last years however, a tendency towards the use ofcream-like products can be observed. From practice, quite contradictory opinions arrive with respect tothe effectiveness of injections and quite often disputes develop between building owner and executingcontractor on the performance of the treatment. Sometimes the slow drying of humid walls is used tocover a failing treatment; in other cases, it is not clear whether the injection or a simultaneously appliedrestoration plaster is responsible for a visual improvement. Research was performed in order to establisha method to evaluate the effectiveness of injection methods in a simple and quick way, both for assessingperformance in practice and for use in laboratory. Interesting side effect of the research program was thatalso several essential parameters, influencing the effectiveness of chemical products, became evident. Inthis article, focus will be on the quick assessment method for practice
TNO Identifier
800468
Source
Journal of Cultural Heritage, 315, pp. 1-8.
Pages
1-8
Files
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