Impregnation of concrete structures - introduction to a PhD-project
2005 (English)In: Proceedings Hydrophobe IV: water repellent treatment of building materials, Freiburg, Switzerland: Aedification Publishers , 2005, 59-68 p.Conference paper (Refereed)
Moisture is the source of most damage in concrete bridges, such as frost damage and reinforcement corrosion. Experiments and field investigations show that impregnation with silanes and siloxanes provide good protection against moisture for at least eight to ten years. But most of the research only verifies this without providing a reason for the positive results. This project analyses how common impregnation substances work in concrete. Additionally, the authors develop models in order to explain these effects. As a first step, it is important to obtain reliable data on how the moisture diffusion coefficient is affected by hydrophobic treatments. Some of the factors investigated are how the water-cement ratio and the impregnation depth will influence moisture transport. One of the goals is to create a computer model to predict the moisture and chloride content over time when the geometry, the material properties of the concrete structure and the environmental conditions are known.
Place, publisher, year, edition, pages
Freiburg, Switzerland: Aedification Publishers , 2005. 59-68 p.
Hydrophobization, Concrete, Model, Mathematic model
IdentifiersURN: urn:nbn:se:kth:diva-6300ISBN: 3-931681-81-5OAI: oai:DiVA.org:kth-6300DiVA: diva2:10978
4th International Conference on Water Repellent Treatment of Building Materials, Stockholm, Sweden, April 12-13 2005
QC 201011172006-10-252006-10-252010-11-17Bibliographically approved