Experimental study of the distribution of chemical products against rising damp in substrates with different water saturation degrees
article
Injection of chemicals in masonry walls is a commonly used technique for tackling rising damp. The presence
of a high moisture content in the wall to be injected may sometimes limit the effectiveness of the
intervention. This paper reports an experimental study of curing time, spreading and effectiveness of 15
injection products in bricks with different water saturation degrees. Significant differences in curing
times and percentages of components left after curing were observed among products. The spreading
and the effectiveness of products in (wet) substrates resulted to strongly depend on the solvent and,
in a lesser way, on the active components. Liquid water based silane/siloxane products showed to spread
homogeneously and reduce water uptake the most
of a high moisture content in the wall to be injected may sometimes limit the effectiveness of the
intervention. This paper reports an experimental study of curing time, spreading and effectiveness of 15
injection products in bricks with different water saturation degrees. Significant differences in curing
times and percentages of components left after curing were observed among products. The spreading
and the effectiveness of products in (wet) substrates resulted to strongly depend on the solvent and,
in a lesser way, on the active components. Liquid water based silane/siloxane products showed to spread
homogeneously and reduce water uptake the most
TNO Identifier
466973
Source
Construction and Building Materials, 40(January), pp. 891-898.
Pages
891-898
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