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Saturday, 20 July 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

Using methylsilicones in radiation-chemical protection of concrete

Friday, 27 June 2014

An influence of the atmosphere components on composite material such as concrete leads to the reduction of its strength and changes in its structure.

Excluding water from a concrete body makes it possible to slow down corrosion
Source: Roman Milert - Fotolia.com

Excluding water from a concrete body makes it possible to slow down corrosion
Source: Roman Milert - Fotolia.com

Having excluded water from a concrete body it is possible to slow down the processes of its corrosion essentially. Traditional waterproofing means have various components with different viscosity in their structure. When applying them on a porous structure of a cement stone chromotropic separation of a hydrophobisator with the loss of its efficiency occurs.

Compressive strength and waterproofness were determined

The impregnation of concrete by unsaturated organosiloxanes of low viscosity and their blends with dimethylsilyl and methylhydridesilyl oligomers followed by their irradiation induced curing have been studied by Ukrainian researchers. Samples of modified cement stone and determination of their physical-mechanical properties, namely compressive strength, waterproofness and frost resistance as well as an influence of impregnation on hydrophobicity of cement stone surface were obtained. Positive effect of the modification proposed on service properties and durability of radiation-chemically modified concrete was observed.

The study is published in: Macromolecular Symposia, Rouen Symposium in Advanced Materials – Part I, Volume 340, Issue 1, pages 28–36, June 2014

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