Schäden, die durch Imprägnierungsmittel verursacht werden - Ursachen und Gegenmassnahmen / Damage caused by Water Repellent Agents - Reasons and Counter-measures
-
M. Sauder
Abstract
In several discussions, but also on the sites, the following thesis can often be heard: "Hydrophobic agents cause damage on stone surfaces!" or "Water repellent properties vanish in a few years!" In spite of this we know that great efforts have been done in research and development of water repellent agents in the past 20 years. So we can choose today between a great amount of different products for nearly every type of application. A lot of damage still occurs. This paper describes the typical destructions from some examples out of 15 years of practical experience and gives an explanation for the origin of the damage. In almost every case there are 2 main factors responsible for the damage: Caused by the lack of essential preliminary examinations on the building, there is no sufficient knowledge about facts and dates concerning the building materials. On the other side application is an important factor, and there is only a very small progress to be seen during the past decades. Mistakes in application lead in a very short time to a great amount of damage - and this may be the main reason for the general "bad reputation" of water repellent agents. Last not least, the architects, civil engineers and the building owners carry a certain responsibility too, especially for the lack of information on these complex topics and the lack of control during application.
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Articles in the same Issue
- Inhalt / Contents
- Impressum
- Editorial
- Imprägniermittel: Schutz von Betonfassaden in einem nassen Klima / Water Repellents: Protection of Facades of Concrete in a Wet Climate
- Wasser- und ölabweisende Oberflächenschutzmassnahmen mit fluorierten Acrylaten auf Naturstein und Beton / Fluorinated Acrylics as an Alternative for Hydrophobie and Oleophobic Coating for Stone and Concrete
- Eindringtiefe eines Hydrophobierungsmittels als Funktion der Qualität, des Feuchtigkeitsgehaltes und des Alters des Betons / Penetration depth of a water repellent agent as a function of quality, humidity and age of concrete
- Schutzbehandlung von Beton mit Silan- und Siloxanpräparaten / Protective Treatment of Concrete with Silane or Siloxane
- Schäden, die durch Imprägnierungsmittel verursacht werden - Ursachen und Gegenmassnahmen / Damage caused by Water Repellent Agents - Reasons and Counter-measures
- Aus der Praxis / Applications
- Mitteilungen und Hinweise / Short Notes
- Neue Bücher / Book Reviews
- WTA - News
- Veranstaltungskalender / Calendar of Events
- Stichwörter und Bezugsquellen
Articles in the same Issue
- Inhalt / Contents
- Impressum
- Editorial
- Imprägniermittel: Schutz von Betonfassaden in einem nassen Klima / Water Repellents: Protection of Facades of Concrete in a Wet Climate
- Wasser- und ölabweisende Oberflächenschutzmassnahmen mit fluorierten Acrylaten auf Naturstein und Beton / Fluorinated Acrylics as an Alternative for Hydrophobie and Oleophobic Coating for Stone and Concrete
- Eindringtiefe eines Hydrophobierungsmittels als Funktion der Qualität, des Feuchtigkeitsgehaltes und des Alters des Betons / Penetration depth of a water repellent agent as a function of quality, humidity and age of concrete
- Schutzbehandlung von Beton mit Silan- und Siloxanpräparaten / Protective Treatment of Concrete with Silane or Siloxane
- Schäden, die durch Imprägnierungsmittel verursacht werden - Ursachen und Gegenmassnahmen / Damage caused by Water Repellent Agents - Reasons and Counter-measures
- Aus der Praxis / Applications
- Mitteilungen und Hinweise / Short Notes
- Neue Bücher / Book Reviews
- WTA - News
- Veranstaltungskalender / Calendar of Events
- Stichwörter und Bezugsquellen
