Abstract
Cracks in concrete usually have to be closed either to make the structure water tight again or to protect the reinforcement against corrosion. As many cracks are not stable in their width, a repair is only successful, when the injected material can change its volume according to the volume-change of the crack. The volume of gases can be changed to a great amount by applying small external forces. To achieve volume compressibility of.an injecting resin combined with watertightness, plastic micro-balloons or micro-spheres (average diameter 0,04 mm) are inserted into the resin. Using a rubberlike epoxy resin, volume deformations of more than 50% are possible. If the epoxy resin is stiff (modulus of elasticity about 2000 N/mm2) forces can be transmitted still allowing a volume change of 10 to 20%. The applied deformations are fully reversible.
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References
Ivânyi, G.: Sanierung von Rissen durch Epoxidharzinjektionen. Haus der Technik, Essen, 15. 11. 1985.
Kordina, K.; Blume, F.; Günther, J.: Schadensbehebung durch Schließen von Rissen. Institut für Baustoffe, Massivbau und Brandschutz der Technischen Universität Braunschweig, Heft 65, 1984.
Engelke, P.; Ivânyi, G.: Kraftschlüssiges Verpressen von Rissen in Überbauten von Massivbrücken mit Epoxidharzen. Beton-und Stahlbetonbau 80 (1985) 23, S. 29-35, S. 79–52
Kern, E.: Dichten von Rissen und Fehlstellen im Beton durch Injektion von Kunststoffen. VDI-Berichte Nr. 384, 1980.
ACI•Comittee 224: Causes, Evaluation, and Repair of Cracks in Concrete. ACI Journal 81 (1984) 5–6, pp. 211–230.
Asendorf, K.: Prüfverfahren zur Beurteilung von In-jektionsharzen. Tunnel (1985) 2, S. 107–110.
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© 1986 Springer Science+Business Media Dordrecht
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Letsch, R.H. (1986). Resin Injection of Cracks with Changing Width. In: Sasse, H.R. (eds) Adhesion between polymers and concrete / Adhésion entre polymères et béton. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-3454-3_43
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DOI: https://doi.org/10.1007/978-1-4899-3454-3_43
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-412-29050-3
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