Vývoj nových typů kompozitů pro sanace betonů se zvýšenou ochranou výztuže
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Vysoké učení technické v Brně. Fakulta stavební
Abstract
Koroze výztuže je jednou z nejčastějších příčin poruch železobetonových konstrukcí a dochází tak k výraznému zkrácení životnosti stavebních děl. Práce je zaměřena na vývoj unikátního systému správkových hmot s přidanou hodnotou v podobě inhibitorů koreze, které jsou zakomponovány do materiálového složení jednotlivých hmot. Hlavní funkcí nově navrženého systému sanačních hmot je postupné uvolňování migrujících inhibitorů koroze do podkladního betonu po jejich aplikaci a zpomalit tak, nebo dokonce zastavit probíhající korozi ocelové výztuže. Tento efekt má výrazný vliv na prodloužení životního cyklu nejen provedeného sanačního zákroku, ale také na prodloužení životního cyklu celé konstrukce, do které tyto aktivní látky pronikají.
Around the world there is a great number of reinforced concrete structures, who´s life cycle, for which they were designed, is significantly shortened due to action of various aggressive environments, or due to defects created during the construction process. (i.e. insufficient steel reinforcement cover depth). One of the most common causes of problems in reinforced concrete structures is corrosion of steel reinforcement. It is necessary to repair structures degraded in this fashion and return them to their original state. We made a unique polymercement concrete repair system was developed with value added. Corrosion inhibitors, including the newly developed, are implemented into its polymercement matrix, which significantly limit the corrosive processes in all new materials. The principle of proposed solution is application of repair system on a corrosion damaged structure, and then the active substances in the repair material will penetrate into substrate concrete and protect corroded steel reinforcement. Another value added is the application of recycled raw materials into the proposed materials, which has indisputable environmental effect and simultaneously allows for improvement of some properties of the repair materials. Further was developed a new method for detecting corrosion inhibitors in concrete.
Around the world there is a great number of reinforced concrete structures, who´s life cycle, for which they were designed, is significantly shortened due to action of various aggressive environments, or due to defects created during the construction process. (i.e. insufficient steel reinforcement cover depth). One of the most common causes of problems in reinforced concrete structures is corrosion of steel reinforcement. It is necessary to repair structures degraded in this fashion and return them to their original state. We made a unique polymercement concrete repair system was developed with value added. Corrosion inhibitors, including the newly developed, are implemented into its polymercement matrix, which significantly limit the corrosive processes in all new materials. The principle of proposed solution is application of repair system on a corrosion damaged structure, and then the active substances in the repair material will penetrate into substrate concrete and protect corroded steel reinforcement. Another value added is the application of recycled raw materials into the proposed materials, which has indisputable environmental effect and simultaneously allows for improvement of some properties of the repair materials. Further was developed a new method for detecting corrosion inhibitors in concrete.
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TARANZA, L. Vývoj nových typů kompozitů pro sanace betonů se zvýšenou ochranou výztuže [online]. Brno: Vysoké učení technické v Brně. Fakulta stavební. 2017.
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cs
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Fyzikální a stavebně materiálové inženýrství
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2017-04-24
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práce byla úspěšně obhájena
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Standardní licenční smlouva - přístup k plnému textu bez omezení