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Дисертації з теми "Protective Concrete Structures"

Автор: Grafiati

Опубліковано: 7 червня 2025

Оновлено: 2 серпня 2025

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1

Hansson, Håkan. "Warhead penetration in concrete protective structures." Licentiate thesis, KTH, Betongbyggnad, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48009.

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The analysis of penetration of warheads in concrete protective structures is an important part of the study of weapon effects on protective structures. This type of analysis requires that the design load in the form of a warhead is determined, and its characteristic and performance within a protective structure is known. Constitutive equations for concrete subjected to weapon effects have been a major area of interest for a long time, and several material models for concrete behaviour are developed. However, it is not until recent years that it has been possible to use finite element (FE) anal

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2

Jappie, Luqmaan. "Literature review of the use of common protective coatings for concrete structures with experiences in the South African context." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30127.

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INTRODUCTION The main objective of this dissertation is to compile a comprehensive literature review of surface protection systems, including their historical development, specification and use, and to conduct an industry review from the South African market. With a vast amount of deteriorating reinforced concrete structures and fast developing technology of surface treatments, it is important that engineers have a good working understanding of concrete deterioration, repair and the use of surface protection systems. Additionally, engineers need to have a good understanding of the pore struct

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3

Hassanein, Alea El Din Mohamed. "Intermittent cathodic protection of reinforced concrete structures." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287182.

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4

Srour, Mahdi. "Rocking system for seismic protection of reinforced concrete structures." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3255/.

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5

Oleiwi, H. M. "Using cathodic protection to control corrosion of reinforced concrete structures." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/47895/.

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Cathodic protection (CP) has been increasingly used on reinforced concrete structures to protect steel reinforcement from corrosion. However, due to the complexity of environmental conditions, the specifications in national and international standards are still open to discussion in engineering practices for their accurate suitability. To some extent, the design aspects are still based on practical experience. It implies a great deal of estimations and assumptions. The research conducted in the thesis aims to address some of these challenges. To obtain reliable experimental results, the presen

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6

Selander, Anders. "Hydrophobic Impregnation of Concrete Structures : Effects on Concrete Properties." Doctoral thesis, KTH, Brobyggnad inkl stålbyggnad, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12179.

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Hydrophobic impregnations often referred to as water repellent agents, today mainly consisting of alkylalkoxysilanes, are often used on concrete to prolong the service life of the structure. This is accomplished by protecting the reinforcement bars from chlorides or by changing the moisture content inside. When the concrete is treated with a water repellent agent the properties of the surface layer becomes hydrophobic and thereby water droplets are stopped from entering, still allowing water vapour to pass through. This change can reduce chloride ingress and stop heavy rain from penetrating th

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7

Walsh, Michael Thomas. "Corrosion of Steel in Submerged Concrete Structures." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6048.

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This investigation determined that severe corrosion of steel can occur in the submerged portions of reinforced concrete structures in marine environments. Field studies of decommissioned pilings from actual bridges revealed multiple instances of strong corrosion localization, showing appreciable local loss of steel cross-section. Quantitative understanding of the phenomenon and its causes was developed and articulated in the form of a predictive model. The predictive model output was consistent with both the corrosion rate estimates and the extent of corrosion localization observed in the fiel

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8

Christodoulou, Christian. "Repair and corrosion management of reinforced concrete structures." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13577.

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The durability of concrete structures is affected by a number of factors such as environmental exposure, electrochemical reactions, mechanical loading, impact damage and others. Of all of these, corrosion of the reinforcement is probably the main cause for the deterioration of steel reinforced concrete (RC) structures. Corrosion management is becoming increasingly necessary as a result of the growing number of ageing infrastructure assets (e.g. bridges, tunnels etc.) and the increased requirement for unplanned maintenance in order to keep these structures operational throughout their design li

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9

Sohrabi, Mohammad Reza. "Thin layered systems for the repair and protection of concrete structures." Thesis, University of Newcastle Upon Tyne, 1996. http://hdl.handle.net/10443/485.

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Thin layered systems can be considered as a solution to the repair and protection of concrete structures. This subject was studied in the current investigation. Some common uses of these systems include protection, upgrading and rehabilitation of the floor slabs,restoration of appearance of the structures, impermeability, skid resistance, wear resistance, and protection of the reinforcing steel of concrete structures against atmospheric or chemical attack. However it can be said that protection, upgrading and rehabilitation of floor slabs are the main uses for the design of modem thin layered

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10

Cassidy, Eric Dana. "Development and Structural Testing of FRP Reinforced OSB Panels for Disaster Resistant Construction." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/CassidyED2002.pdf.

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11

Das, S. C. "Zinc rich paint as anode system for cathodic protection (CP) of reinforced concrete structures and development of corrosion/CP monitoring probes." Thesis, Coventry University, 2012. http://curve.coventry.ac.uk/open/items/5f6b4228-1557-4cf8-bebd-97b5b70bb594/1.

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Since mid-80‟s cathodic protection (CP) has been recognised as the „‟only technique known to stop corrosion regardless of the levels of chloride contamination in concrete‟‟ (FHWA, 1982) and is proved to be the most cost effective means to extend the useful life of the structure. Cathodic protection is an electrochemical technique to stop/mitigate corrosion by supplying „current‟ from an external source in order to suppress the „internally generated‟ current flow due to corrosion processes. The „external‟ current source could be obtained simply by coupling the steel to another electrochemically

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12

Houndonougbo, Thierry. "Efficacitée et durabilité des revêtements en polymères pour la protection des structures en béton atteintes de réaction sulfatique interne (RSI) : de l’éprouvette à la structure." Electronic Thesis or Diss., Université Gustave Eiffel, 2024. http://www.theses.fr/2024UEFL2009.

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La réaction sulfatique interne (RSI) est une réaction de gonflement interne des matériaux cimentaires générant des contraintes importantes qui conduisent progressivement à la fissuration, à la perte de cohésion et à la ruine des structures de génie civil. Par ailleurs, les échanges hydriques entre le matériau et la lixiviation des alcalins du béton constituent des facteurs favorisant la réaction. Afin d'interrompre ces échanges, des approches par revêtement sont en cours de déploiement depuis quelques dizaines d'années. Cependant, des obstacles à la définition d'une procédure de traitement cla

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13

Ousset, Isabelle. "Contribution à la modélisation par éléments finis des structures en béton armé soumises à des avalanches de neige : Application à la structure de protection de Taconnaz." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0051/document.

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En zone de montagne, les avalanches de neige menacent les personnes et également les structures de génie civil. Ce travail de thèse se focalise sur une structure de protection en BA (Béton Armé) de type mur en L. L'objectif est de caler et valider un modèle EF (Elément Fini) 2D afin d'étudier le comportement de tels ouvrages sous l'effet de champs de pression induits par des avalanches de neige dense et d'évaluer leur vulnérabilité face à cet aléa naturel. Quatre lois de comportement décrivant la rhéologie du béton ont été testées en vue de reproduire le plus précisément possible la ruine du m

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14

Cochlárová, Milena. "Možnosti odstranění zelených řas z betonových konstrukcí." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2014. http://www.nusl.cz/ntk/nusl-217096.

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This master´s thesis deals with the suppression of algal growth on concrete structures. The subject of the work is to design and coatings their own structural concretes containing protective element in order to inhibit the growth of algae. As the coating are tested commercially avaiable and newly created systems. Testing systems are based on the portland cement and chelates of metal (Cu, Ni, Co, Mn, Zn, Al).

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15

Triantafyllidis, Zafeirios. "Structural enhancements with fibre-reinforced epoxy intumescent coatings." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/29514.

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Epoxy intumescent coatings are fire protection systems for steel structural elements that are widely used in applications that protection from severe hydrocarbon fires is required, such as oil and gas facilities. These polymer coatings react upon heating and expand into a thick porous char layer that insulates the protected steel element. In the typical fire scenarios for these applications, the intumescent coatings must resist very high heat fluxes and highly erosive forces from ignited pressurised gases. Hence, continuous fibre reinforcement is embedded in the thick epoxy coating during inst

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16

Huková, Martina. "Stavebně technologická příprava prodejny Smart Light v Bratislavě." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392005.

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The main subject of this diploma thesis is elaboration of construction and technological preparation for the main structure of the Smart Light shop in Bratislava. For main structure has been processed time schedule of the construction, single item budget, machine configuration design, drawing of building site, coordination situation of the building with connection to the infrastructure, safety and health protection during work on building site. Part of the thesis is processing study of main construction technological parts. Diploma thesis in technological prescript focuses on implementation of

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17

Le, Nguyen Khuong. "Contribution à la compréhension du comportement des structures renforcées par FRP sous séismes." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0020/document.

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Анотація:

Dans le cadre de la mise à niveau sismique des bâtiments existants, la technique de renforcement par placage et enrobage de polymères renforcés de fibres (FRP) offre une réponse pertinente. L’objectif de cette thèse est de proposer une modélisation fiable pour la détermination de la réponse quasi-statique et dynamique d’une grande variété d’éléments de structure et d’identifier les apports possibles d’une telle modélisation à la conception. Les stratégies de modélisation s’appuient sur l’utilisation d’éléments finis massifs ou basés sur une cinématique simplifiée (coques multicouches et poutre

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18

Herben, Tomáš. "Bytový dům Hlaváčkova – stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265294.

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The subject of this thesis is the construction and technological project of a residential building Hlavackova. The work is mainly focused on the stage of construction. The work includes technical report building equipment, wider transport relations, design of mechanical assemblies, technological prescription monolithic structures and related inspection and test plans, safety, environmental protection, work contract, draft securing material resources for rough substructure and special use of roads, financing construction costs and schedule of construction.

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19

Malečík, Patrik. "Stavebně technologický projekt části lékařské fakulty." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265464.

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In my master's thesis I deal with constructive technological project of medical faculty of Charles Univerisity. The aim is to solve the structure in terms of financial, time and technology. Constructive technological project of my thesis contains site equipment, time and financial schedule, design of mechanization, technological prescription, inspection and test plan, health and safety, etc.

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20

Prokop, Ondřej. "Kanalizace a ČOV ve Veverské Bítýšce - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240245.

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Master´s thesis deals with construction technology project of Sewerage and wastewater treatment plants. The old building objects will be demolished and there will be built new objects on the same place as before. The target of the reconstruction is reducing the amount of energy and increase technological and technology level of wastewater treatment. One of the part of the reconstruction is build new filling station and the sanitation of pipelines on the other side of the river.

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21

Knotek, Vít. "Skladová hala v Šakvicích - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240405.

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Main goal of this thesis is effective design and comprehensible description of the assembly of reinforced concrete skeleton warehouse in Šakvice. In several chapters of this thesis is for preparing of this investor´s plan solved supplies prefabricated components. As well as their assembly into construction, equipment of construction site, used technologies, quality control and safety of performed works. There is great emphasis on the construction budget and its chronology. The aim was to use the rapid progress of construction of the supporting skeleton, taking into account the financial coast

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22

Kulla, Lukáš. "Statické zajištění zámku." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240358.

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The aim of this final thesis was static protection for castle in Miroslavské Knínice. It was necessary to explore several respects and find signs of violation. Next analyze and propose suitable assurance of individual parts. Separe into the stages of construction and to consider the proposal in terms of ensuring the resistance of materials. Finally create a detailed documentation in the range suitable for performance. Based on engineering geology and visual survey was designed horizontal bracing prestressing cables at three levels. The first level "A" consists of a closed circuit of prestresse

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23

Hladký, Dominik. "Obytný areál Ponavia park v Brně, příprava a organizace stavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409926.

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This thesis deals with the construction process of the apartment house Ponavia Park located in Brno. The thesis solves the individual realization phases of the main building phase. Building site equipment is designed for the projected construction process in three different variations. A technical report is also included in the building site. Critical points within the transport of materials and machines are also verified. A financial plan for the whole building is made as an summarizing time schedule for the apartment building. The sources for the financial plan are the figures taken from the

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24

Muehlenkamp, Erik B. "Electrochemical modeling of cathodic protection systems applied to reinforced concrete structures." Thesis, 2005. http://hdl.handle.net/1957/28991.

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A numerical model for the cathodic protection of steel in reinforced concrete is developed. Parameters are set to represent a three-dimensional section of a bridge beam exposed to the atmosphere and coated with a thermally sprayed zinc anode. Both diffusion of oxygen and conduction of charge within the concrete are considered explicitly through a two-dimensional finite element model. The diffusivity and conductivity are represented as functions of concrete moisture content. Electrochemical reactions considered at the rebar-concrete interface are reduction of oxygen, oxidation of iron, and evol

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25

Xia, Ye. "Cladding Protection of Reinforced Concrete Structural Members against Blast Loading." Thesis, 2017. http://hdl.handle.net/2440/119190.

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With the increasing threat of explosions on infrastructures across the world, the protective techniques against blast loading on existing structures have become more and more significant. As an energy absorptive material, aluminium foam has been introduced to be a sacrificial cladding on structures. This thesis aims to discover the protective effect of aluminium foam on reinforced concrete (RC) structural members which has been a common structural type for existing buildings. Homogeneous aluminium foam was firstly studied both numerically and theoretically. Based on the investigations of homog

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26

Rehani, Manu. "Transport of chloride ions during accelerated cathodic protection of reinforced concrete structures." Thesis, 2000. http://hdl.handle.net/1957/32791.

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Chloride ion migration was studied under accelerated cathodic protection conditions using 6" x 6" x 6" mortar blocks of varying initial chloride content and water to cement ratios. An iron mesh embedded parallel to one face in the blocks acted as the cathode and zinc was thermally sprayed on the opposite face to form an anode. First, the potential response of two blocks was studied at a current density of 3 mA/ft��. One block was outfitted with a heat sink and moisture barrier while the other block was periodically wetted. Second, eight blocks were polarized at various current densities for a

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27

Chen, Chieh, and 陳介. "A study of desalting and protecting corrosion for harbor reinforced concrete structures." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/92910810601187622806.

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碩士<br>國立成功大學<br>土木工程學系專班<br>91<br>Corrosion of steel caused reinforced concrete structures damaged and collapsed in marine environment Chloride could be considered as one of the major important corrosion factor. Therefore, preventing and eliminating chlorides in concrete should be an effective way to prevent steel corrosion. Recent studies pointed out that corrosion theory, deterioration of concrete、polarization and desalinization treatment .In the study, four topics were discussed .They were included steel corrosion improvement, concrete quality, electrolyte variation and chloride rem

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28

Soares, Frederico Cabral da Camara Oliveira. "Energy dissipation devices for structures under blast." Master's thesis, 2018. http://hdl.handle.net/10362/40261.

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Terrorism pose a serious threat nowadays and many countries have the concern of protecting his people and most important buildings. This concern is an opportunity to strengthen the research of the behaviour of buildings under blast in order to reduce the magnitude of the effects of these catastrophic events. The present thesis aims to create a functional system to improve the security of critical buildings, either new or adapting old buildings to receive this new system. This system also tries to be cost efficient, so this can be used in most buildings. This thesis was centred in one

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29

Carlos, Thiago Brazeiro. "Experimental and Numerical Analysis on the Structural Behaviour of RC Beams Strengthened with CFRP Laminates under Fire Conditions." Doctoral thesis, 2019. http://hdl.handle.net/10316/87644.

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Tese de Doutoramento em Engenharia de Segurança ao Incêndio, apresentada ao Departamento de Engenharia Civil da Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>The use of carbon fibre reinforced polymer (CFRP) laminates on strengthening and rehabilitation of reinforced concrete (RC), steel and timber structures has been widely used in the past few years due to the excellent mechanical performance, lightness, ease of application and corrosion resistance at ambient temperature of this composite material. However, it is well known that CFRP strengthening systems are very vulnerab

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