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Artigos de revistas sobre o tema "Protective Concrete Structures"

Autor: Grafiati

Publicado: 7 de junho de 2025

Última modificação: 2 de agosto de 2025

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1

Korolko, Serhiy, and Bohdan Seredyuk. "Nanomodified rapid hardening concretes reinforced with dispersed basaltic fibers." Military Technical Collection, no. 24 (May 20, 2021): 57–63. http://dx.doi.org/10.33577/2312-4458.24.2021.57-63.

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The article considers modern perspectives and directions of using fast – hardening high – strength concretes for protection against striking factors of action of different types of weapons. It is shown that the use of concrete materials in weapons and military equipment is one of the important components of defense structures and protective fortifications during hostilities as platoons and bases, and structures for the protection of civilians. The possibility of obtaining such concretes for the creation of special purpose fortifications is shown. Developed concrete structures have increased st

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2

Kobayashi, Kazusuke. "Protective Coating for Concrete Structures." Concrete Journal 23, no. 8 (1985): 20–23. http://dx.doi.org/10.3151/coj1975.23.8_20.

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Kostyuk, Tetiana, Andriy Plugin, Dmytro Plugin, Oleksandr Bondarenko, and Olena Dedenova. "MECHANISM FOR CREATING A CEMENT COMPOSITE WITH ENHANCED HYDROPHYSICAL AND RADIATION PROTECTION PROPERTIES." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 206 (December 11, 2023): 101–11. http://dx.doi.org/10.18664/1994-7852.206.2023.296647.

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In modern conditions, the environmental component of building protective materials is guaranteed by the creation of composites capable of protecting underground and above-ground parts of buildings and structures in flooded areas from the filtration of radiation-contaminated water, industrial wastewater, radon, etc. Therefore, the problem of developing modern, including radiation-protective materials for the construction industry is urgent. Concrete is a good moderator and absorber of fast neutrons and intensively absorbs gamma radiation. Concrete consists of cement, sand and gravel. Cement con

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Klingsch, Eike Wolfram, Andrea Frangi, and Mario Fontana. "Fire Protection of High-Performance Concrete Using Protective Lining." Applied Mechanics and Materials 82 (July 2011): 758–63. http://dx.doi.org/10.4028/www.scientific.net/amm.82.758.

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The paper presents results of experimental and numerical analyses on the fire behavior of concrete elements protected by sprayed protective linings. Particular attention is given to high- (HPC) and ultrahigh performance concrete (UHPC), as HPC and UHPC tend to exhibit explosive spalling in fire due to low porosity. The results provide basic input data for the development of simplified rules for the fire design of concrete structures protected by sprayed protective linings.

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Årskog, V., K. Borgund, and Odd E. Gjørv. "Effect of Concrete Hydrophobation against Chloride Penetration." Key Engineering Materials 466 (January 2011): 183–90. http://dx.doi.org/10.4028/www.scientific.net/kem.466.183.

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For concrete structures in chloride containing environments, hydrophobic surface treatments are often used as an additional protective measure for protecting the embedded steel against corrosion. In recent years, silane-based hydrophobic agents that can be used as concrete admixtures for making the whole concrete hydrophobic have also been introduced. In the present paper, the protective effectiveness of such an admixture against chloride penetration has been investigated. For comparison, some field investigations on the effectiveness of a traditional surface hydrophobation of two concrete har

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6

Bilyk, S. І., and А. S. Bilyk. "COMPARISON OF THE METHODS OF PENETRATION OF THE ENEMY'S AIR ATTACK MEANS IN REINFORCED CONCRETE STRUCTURES OF CRITICAL INFRASTRUCTURE FACILITIES PROTECTION." Modern structures of metal and wood, no. 28 (August 2024): 75–84. http://dx.doi.org/10.31650/2707-3068-2024-28-75-84.

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On the basis of the literature review, trends in the development of studies of engineering protection of critical infrastructure objects were revealed. The review of scientific works revealed the direction of improving the physical and mechanical properties of building protective structures. It is noted that large-scale experimental and theoretical studies of reinforced concrete structures and reinforced concrete protective plates with the use of fiber were carried out.

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Kamaitis, Zenonas. "MODELLING OF CORROSION PROTECTION FOR REINFORCED CONCRETE STRUCTURES WITH SURFACE COATINGS/GELŽBETONINIŲ KONSTRUKCIJŲ SU PAVIRŠINĖMIS DANGOMIS KOROZINĖS APSAUGOS MODELIAVIMAS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 14, no. 4 (2008): 241–49. http://dx.doi.org/10.3846/1392-3730.2008.14.23.

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Corrosion is a serious problem for the durability of reinforced concrete structures. These structures need to be protected from corrosion in a variety of exposure conditions ranging from atmospheric to continuous immersion in water or chemicals. One of the ways to protect reinforced concrete structures from corrosion is to use protective coatings. The surface barriers of non‐degradable materials are able to slow down considerably the rate of deterioration of concrete structures and to overcome most durability problems associated with external attack. Design of durability of concrete structures

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HAIKO, H. I., A. L. HAN, V. V. VAPNICHNA, and I. O. MATVIICHUK. "ANALYSIS OF PROGRESSIVE DESIGN SOLUTIONS FOR UNDERGROUND CIVIL PROTECTION STRUCTURES." Bridges and tunnels: Theory, Research, Practice, no. 26 (November 26, 2024): 31–40. http://dx.doi.org/10.15802/bttrp2024/315286.

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Purpose. Analysis of progressive types and structures of underground civil defense structures against air strikes, development and implementation of innovative solutions in the practice of construction and reconstruction of protective objects, especially for cases of direct impact of ammunition into the perimeter of an underground structure. Methodology. Comparative analysis and differentiation of protective structures, improved methods of renovation and application of existing underground facilities for a new (protective) purpose; methods of finding new technical solutions for the protection

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9

van Breugel, K. "Establishing performance criteria for concrete protective structures." Structural Concrete 2, no. 3 (2001): 133–43. http://dx.doi.org/10.1680/stco.2001.2.3.133.

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10

Zhu, Xingji, Can Zhao, Longjun Xu, Yujin Wang, Shibin Lin, and Guochen Zhao. "Numerical Integration Study of Penetration and Blasting Damage for Composite Underground Protective Structure with Reinforcement Layers." Buildings 14, no. 6 (2024): 1848. http://dx.doi.org/10.3390/buildings14061848.

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In response to the increasing threat of powerful earth-penetrating weapons, underground protective structures typically employ composite structural systems with reinforced steel layers. However, current numerical studies often simplify the entire structural system to plain concrete when assessing damage effects, and penetration and blasting processes are treated separately using a restart method. In this paper, we adopt an integrated simulation approach to analyze the resistance performance of composite protective structures with reinforcement layers. The results reveal significant differences

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11

Krot, A., Viktoriya A. Ryazanova, Azat I. Gabitov, Askar M. Gaisin, and Anastasiya R. Chernova. "Operational Reliability of Exterior Walls of Buildings." Materials Science Forum 968 (August 2019): 317–23. http://dx.doi.org/10.4028/www.scientific.net/msf.968.317.

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Problem of heat insulation and reliability of enclosing structures of buildings is the current issue nowadays due to strict requirements thereto. Protection of exterior walls of autoclaved aerated concrete blocks against negative impacts may be achieved by waterproof plastering combining decorative function either, i.e. decorative and protective system. Such system is possessing hydrophobic properties protecting against inflow of rainwater and condensate accumulating in the wall surface during seasonal periods. Application of decorative and protective “Baumit” system has been tested in heat ef

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Potapov, Yuri B., Sergey A. Pinaev, Arutyun A. Arakelyan, and Andrei D. Barabash. "Polymer-Cement Material for Corrosion Protection of Reinforced Concrete Elements." Materials Science Forum 871 (September 2016): 104–9. http://dx.doi.org/10.4028/www.scientific.net/msf.871.104.

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The paper presents composition of innovative material used for corrosion protection of reinforced concrete structures and experimental data on the increase in cracking of reinforced concrete elements coated with polymer-cement protective layer against corrosive media.

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13

Rozental, N. K., and G. V. Chekhnii. "Protection of reinforced concrete structures in biologically aggressive environments." Bulletin of Science and Research Center of Construction 42, no. 3 (2024): 47–55. https://doi.org/10.37538/2224-9494-2024-3(42)-47-55.

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Introduction. The corrosion of concrete and reinforced concrete structures of buildings and facilities in biologically aggressive environments is considered and protective measures are indicated. All the presented materials are resulted from long-term surveys of numerous reinforced concrete structures of buildings and structures for various purposes along with full-scale corrosion tests of concrete samples in biologically aggressive corrosive environments.Aim. To summarize the results of the performed work on the corrosion and protection of reinforced concrete in biologically aggressive enviro

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14

TATENO, Hideo. "Maintenance and Surface Protective Coating for Concrete Structures." Journal of the Japan Society of Colour Material 94, no. 3 (2021): 69–74. http://dx.doi.org/10.4011/shikizai.94.69.

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15

Tom, Joe G., Charles A. Weiss, Philip G. Malone, and Andrew Virostek. "Durable Roadside Protective Structures for Low-Volume Roads." Transportation Research Record: Journal of the Transportation Research Board 1819, no. 1 (2003): 221–24. http://dx.doi.org/10.3141/1819a-32.

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Data compilations on accidents nationwide show that 30% of all traffic fatalities and 16% of all injuries occur when a vehicle goes into a ditch or strikes a fixed obstacle on the roadside. Highway traffic barriers and crash cushions are not economical for use on low-volume roads, even though they could be helpful in reducing fatalities and injuries. Sand-filled barrels and metal barriers that undergo controlled deformation are relatively expensive and require significant investments in placement, inspection, maintenance, and repair. A crash cushion design based on scrap tires encased in foame

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16

Liu, Dunwen, Yinghua Jian, Yu Tang, et al. "Comprehensive Testing of Sulfate Erosion Damage of Concrete Structures and Analysis of Silane Coating Protection Effect." Sensors 22, no. 20 (2022): 7991. http://dx.doi.org/10.3390/s22207991.

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In order to study the protection performance of silane coating on in-service concrete structures in a sulfate environment, we collect concrete samples in the field to simulate the concrete erosion process by accelerated erosion with wetting–drying cycles. We place the samples into protected, exposed and control groups corresponding to a corrosive environment with silane protection, corrosive environment without protection and general environment for three different service conditions. A combination of ultrasonic velocimetry, CT (Computed Tomography) scan imaging, NMR (Nuclear Magnetic Resonanc

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17

Dyachkov, V. V. "Prospects for the use of steel reinforcement with protective coatings in reinforced concrete structures." Concrete and Reinforced Concrete 616, no. 2 (2023): 5–13. http://dx.doi.org/10.37538/0005-9889-2023-2(616)-5-13.

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Introduction. Corrosion of steel reinforcement is one of the main factors of destruction of reinforced concrete structures exposed to aggressive environment. The use of steel reinforcement with protective coatings applied to its surface in factory conditions is one of the important directions in the creation of durable reinforced concrete structures.Aim. To show possible prospects for the use of various reinforcement protective coatings in Russia to increase the durability of reinforced concrete structures under the influence of aggressive environment. To develop proposals on the need to carry

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18

Melchers, Robert E. "Long-Term Durability of Marine Reinforced Concrete Structures." Journal of Marine Science and Engineering 8, no. 4 (2020): 290. http://dx.doi.org/10.3390/jmse8040290.

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The sustainability of reinforced concrete is critical, particularly for structures exposed to marine environments. Chlorides are implicated in causing or accelerating reinforcement corrosion and potentially earlier expensive repairs, yet there are many older reinforced concrete structures in good condition for many decades despite very high chloride levels at the reinforcement. The reasons for this are reviewed briefly, together with recent experimental work that better defines the role of chlorides. One is initiation of reinforcement corrosion but only through localized pitting at air-voids i

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19

Hou, Xin Ning, and Yong Sheng Zhang. "Talking about the Importance of the Construction of the Reinforced Protective Layer Control." Applied Mechanics and Materials 256-259 (December 2012): 859–62. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.859.

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Reinforced protective layer to ensure the durability of reinforced concrete structures important tectonic structures plays a vital role. Reinforced concrete reinforced the lack of a protective layer will affect the durability of the components, in serious cases, the member failure early. Meticulous construction, requires not only the structure of acceptable quality, also require durability is better. This paper tries to force mechanism of reinforced concrete together, combined with years of construction practice, to talk about the importance of control in the construction of reinforced protect

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20

Sobczyk, Kamil, Ryszard Chmielewski, and Krzysztof Duda. "The concept of a prefabricated structure for protection of critical infrastructure facilities." Bulletin of the Military University of Technology 67, no. 2 (2018): 133–44. http://dx.doi.org/10.5604/01.3001.0012.0979.

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The paper presents the concept of a protective structure in the form of a prefabricated reinforced concrete protective dome intended for protection of a single critical infrastructure facility [1]. Unlike non-movable cast-in-place reinforced concrete structures, the protective structure can be assembled and disassembled repeatedly with the use of dedicated joining sockets. To provide the concept with a high mobility, the dimensions of single modules of the prefabricated reinforced concrete protective dome meet the transport limits dictated by the horizontal and vertical clearance of roads. A n

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21

Korolko, Sergyy, Myroslav Sanytskyy, Tetiana Kropyvnytska, Artem Dziuba, and Yuriy Shabatura. "Prospects of the use of high-tension fiber concrete as the basis for the formation of protective shelters and fortification structures during the russian-ukrainian war." Military Technical Collection, no. 28 (May 25, 2023): 25–33. http://dx.doi.org/10.33577/2312-4458.28.2023.25-33.

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This article analyzes the current state of protective shelters and fortification structures, foresees the modern possibilities of using fastening and basalt-type structures to increase the stability of concrete fortifications both during the construction of buildings for the protection of the civilian population, and for the creation of dugouts, fortifications and fire structures for the protection of personnel in accordance. Studies of the physical and mechanical properties of fiber concrete modified with plasticizers and active mineral additives using basalt and polypropylene fibers ha

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22

Kamaitis, Zenonas. "STRUCTURAL DESIGN OF POLYMER PROTECTIVE COATINGS FOR REINFORCED CONCRETE STRUCTURES. PART II: EXPERIMENTAL VERIFICATION." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 13, no. 1 (2007): 19–26. http://dx.doi.org/10.3846/13923730.2007.9636415.

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The ingress of various gases, liquids and ions from the environment is responsible for the deterioration of concrete structures. A large number and variety of protective surface treatments and coatings on the base of polymers have been developed for application to concrete surfaces in those instances, where special protection against aggressive attack is necessary. At the same time, new protective systems are continually appearing, whose adaptability to specific environments must in every case be proved. Semi‐empirical predictive models for the deterioration over time are presented enabling de

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Stankiewicz, Natalia, and Michał Bołtryk. "Thin Protective Layers Made out of Special Concretes." Solid State Phenomena 259 (May 2017): 101–5. http://dx.doi.org/10.4028/www.scientific.net/ssp.259.101.

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All concrete and reinforced concrete engineering structures degrade over time when they are exposed to the surrounding environment. In particular, the concrete protective layer of reinforcing steel is rapidly degraded, which can lead to failure of the structure. Adequate durability of concrete coatings must be taken into consideration. This property can be ensured by modifying the composition of the concrete mix. This can be done through the implementation of appropriate admixtures and additives into cement composites. This modification, called material and structural protection, can be used i

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Martinola, G. "Zementgebundene Beschichtungen zum Schutz und zur Instandsetzung von Stahlbetonbauwerken / Protective and repair layers for concrete structures." Restoration of Buildings and Monuments 6, no. 3 (2000): 243–72. http://dx.doi.org/10.1515/rbm-2000-5475.

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Abstract Cement based layers are frequently used during the repair of reinforced concrete structures nowadays. They restore the protection of the reinforcement against the penetration of aggressive substances. Protective coatings can also be applied to new structures in order to improve their durability. This paper discusses a concept for the improvement of durability of existing and new reinforced concrete structures using protective layers. To offer protection and to prevent the transport of harmful substances inside the reinforced concrete structure these layers have to be free from cracks

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Zhang, Shao Jun. "The Construction Quality Control Measures of Reinforced Concrete Cover Research." Applied Mechanics and Materials 599-601 (August 2014): 1094–97. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1094.

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reinforced concrete structures reinforced protective layer deviation will directly affect the mechanical properties and durability of the reinforced concrete member, in relation to the structure of the use of safety and service life. The control to the protective layer of reinforced concrete structures include the following aspects: to do a good job of double sample, reinforced the blue prints.the design, production and installation of template engineering, reinforcing steel bar colligation molding process, placed, binding of fixed steel protective layer block and the requirements on the insta

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KRIVTSOV, Yu V., Yu M. GROSHEV, S. A. KOMOV, and G. P. EREMINA. "USE OF MAGNETIC NON-DESTRUCTIVE TESTING TO EVALUATE THICKNESS OF CONCRETE PROTECTIVE LAYER FOR ENCLOSING AND BEARING STRUCTURES AT NPP." Bulletin of Science and Research Center of Construction 35, no. 4 (2023): 149–55. http://dx.doi.org/10.37538/2224-9494-2022-4(35)-149-155.

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Introduction. This article discusses methods and means of controlling the diameter and position of reinforcement and the thickness of the concrete protective layer, along with the contemporary techniques and devices for diagnostic and non-destructive testing of concrete. A comparative analysis of the applicability of contemporary devices was carried out.Aim. In this work, magnetic non-destructive testing was used to assess the thickness of the concrete protective layer, along with establishing the location of the upper row of rod reinforcement and embedded parts. Based on analyzing the interac

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Zou, Si Yu, Ran Huang, An Cheng, and Wei Ting Lin. "Evaluation of Protective Effectiveness and Microstructure of Silicate Concrete Sealer." Applied Mechanics and Materials 368-370 (August 2013): 892–96. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.892.

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This study employed Taguchi method to identify key factors influencing the protection provided by the surface treatment of reinforced concrete structures. We evaluated the protective characteristics of silicate concrete sealer (SCS) as well as its underlying mechanisms. An L12 (27) orthogonal array was produced using seven control factors and two levels to obtain the necessary data from only twelve experiments. Tests were performed to evaluate compressive strength, water absorption, and permeability. The major factors influencing the effectiveness of SCS included the water-binder ratio of the

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Jeon, Sangwoo, and Samuel Edward Rigby. "Design and numerical assessment of a rapid-construction corrugated steel-concrete-steel protective structure." International Journal of Protective Structures 10, no. 4 (2019): 470–85. http://dx.doi.org/10.1177/2041419619830703.

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A protective structure should be sufficiently resilient to protect its occupants from the harmful effects of an impact or explosion. In many instances, protective structures are also required to be assembled quickly, and be cost-effective. Steel-concrete-steel (SCS) sandwich structures combine the benefits of steel; ductility and anti-scabbing, and concrete; energy absorption and rigidity. Despite these favourable characteristics, the performance of profiled-plate steel-concrete-steel structures under blast and impact loads has yet to be studied in detail. This article presents the results fro

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Sakharov, Volodymyr, and Oleksandr Lytvyn. "The effect of an explosive shock wave on the plate of a protective structure of a critical infrastructure." Bases and Foundations, no. 47 (December 22, 2023): 107–14. http://dx.doi.org/10.32347/0475-1132.47.2023.107-114.

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The article presents the outcomes of an analysis on the stress-strain conditions of reinforced concrete structures subjected to an explosive shock wave resulting from the detonation of a combat unit from a kamikaze drone against a protective screen. When designing protective structures for critical infrastructure, employing computer simulation enables an assessment of the genuine impact of explosive loading on the structural elements' strength. The active phase of explosive loading is exceptionally brief, lasting only a fraction of a second. Under such circumstances, modeling is best performed

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Patapavičius, Andrius. "ASSESSMENT OF THE RELIABILITY OF THE REINFORCED CONCRETE LAYER IN STRUCTURES." Mokslas - Lietuvos ateitis 12 (July 7, 2020): 1–4. http://dx.doi.org/10.3846/mla.2020.11395.

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An urgency to use probability-based methods and probabilistic reliability indices in long-term quality assessments and predictions of reinforced concrete products and structures is under consideration. Carbonation nature and depth of protective concrete covers of reinforcement bars and stirrups are analysed. Effect of water-cement ratio on the carbonation rate of protective concrete covers is discussed. Analyzes of reliability of structures reinforcement with composite as spiral (transverse) usage and influence. Presented applied equations and the calculation example demonstrate a simplicity a

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Kurshpel, A. V., and T. E. Lyskova. "On increasing the crack resistance of reinforced concrete structures by introducing fiberglass nets into the protective layer of concrete." Stroitel nye Materialy, no. 8 (September 7, 2024): 17–24. http://dx.doi.org/10.31659/0585-430x-2024-827-8-17-24.

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Under operating conditions, the protective layer of concrete undergoes significant internal and external influences that lead to the formation of cracks. To increase the reliability and durability of reinforced concrete structures, it is proposed to install fiberglass nets in the protective layer of concrete, which is most susceptible to various aggressive influences during the operation of structures. The purpose of this work was to study the effect of fiberglass nets on increasing the crack resistance of the protective layer of concrete. The forces in the stretched concrete and in the rods o

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Lastivka, Oles. "Effectiveness of corrosion protection of reinforced concrete with thermoplastic powder coatings." Transfer of innovative technologies 7, no. 1 (2024): 34–40. https://doi.org/10.32347/tit.2024.71.01.02.

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Abstract. In modern construction, there is a persistent trend of increasing levels of corrosive aggressiveness, which negatively affects the reliability and durability of reinforced concrete buildings and structures. Achieving their effective protection from corrosion under the complex influence of various destructive environmental factors, while considering environmental protection regulations, as well as the economic and technological aspects of sustainable development, determines the focus of scientific research towards the use of innovative, durable protective coatings, among which thermop

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Hua, Quan, Changyun Wu, Yangshun Zhu, et al. "Design and Preparation of a Novel Double-Modified Cement-Based Protective Coating Material and Its Improved Protection Performance Against Chloride Corrosion." Coatings 15, no. 3 (2025): 277. https://doi.org/10.3390/coatings15030277.

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The service of reinforced concrete structures (RCSs) in harsh coastal environments is often threatened by chloride corrosion. The penetration of chloride ions through concrete pores into the steel/concrete interface will cause the depassivation and corrosion of steel rebars, which will lead to the deterioration and failure of RCSs durability. It is important to repair and protect the corrosion damage of existing concrete structures and ensure their high durability, and the high performance of repairing and protecting materials is crucial. In this paper, a novel cement-based protective coating

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Zhang, Chenghan, and Jianchuan Zhuang. "Research on the Influence of Rainwater Erosion on Reinforced Concrete Structures and its Protection Methods." Highlights in Science, Engineering and Technology 137 (April 10, 2025): 131–36. https://doi.org/10.54097/h9pc7162.

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Today, global temperature warming and industrialization have exacerbated the problem of acid rain, resulting in severe erosion risks of reinforced concrete structures. Reinforced concrete structures are widely used in daily life, especially in bridges, buildings, water conservancy and other infrastructure. Studying the erosion principle of reinforced concrete structures by rainwater and the protective precautions of the structure can reduce the maintenance cost of reinforced concrete structures, put forward suggestions for modern protective measures, more rational use of resources, maximize th

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Yatsenko, Anna A., Mikhail V. Chernyshov, and Karina E. Savelova. "Numerical simulation of damage to the deformed state of the coating slab of a special structure." E3S Web of Conferences 515 (2024): 01025. http://dx.doi.org/10.1051/e3sconf/202451501025.

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In this paper, we strived to the goal to ensure various special structures against damage factors of high-explosive blast. Together with application of combined blast protection devices, we considered reinforcement of constructive elements and simulated the impact and interaction of detonating projectile with reinforced concrete wall. Various packages of computational mechanics which belong to ANSYS family were applied to numerical simulations, as well as the developed numerical model of reinforced media which can be effective in development of combined blast-protective structures for urban en

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Štoller, Jiří, and Petr Dvořák. "Field Tests of Cementitious Composites Suitable for Protective Structures and Critical Infrastructure." Key Engineering Materials 722 (December 2016): 3–11. http://dx.doi.org/10.4028/www.scientific.net/kem.722.3.

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The paper deals with field tests of cementitious composites suitable for protective structures and critical infrastructure. The tests of ballistic resistance against contact and distant explosions are performed according to the NATO standards. The results of tests of plain concrete, steel fibre reinforced concrete and high performance fibre reinforced concrete are analysed.

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Karkhut, Ihor. "Improving the crack resistance of inclined cross-sections of reinforced concrete containment shells in areas of emergency loads of pushing." Eastern-European Journal of Enterprise Technologies 4, no. 7 (118) (2022): 31–41. http://dx.doi.org/10.15587/1729-4061.2022.262337.

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The object of this research was the crack resistance of inclined sections of concrete and reinforced concrete fragments of protective structures under the action of emergency dynamic loads. The characteristics of dangerous emergency dynamic loads on protective structures (seismic, aircraft attack), the experience of increasing the crack resistance of inclined sections with various materials and design measures under static effects have been described. Areas of influence of dynamic loads on reinforced concrete structures reinforced with horizontal grids near the upper and lower faces need to in

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Ihor, Karkhut. "Improving the crack resistance of inclined cross-sections of reinforced concrete containment shells in areas of emergency loads of pushing." Eastern-European Journal of Enterprise Technologies 4, no. 7 (118) (2022): 31–41. https://doi.org/10.15587/1729-4061.2022.262337.

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The object of this research was the crack resistance of inclined sections of concrete and reinforced concrete fragments of protective structures under the action of emergency dynamic loads. The characteristics of dangerous emergency dynamic loads on protective structures (seismic, aircraft attack), the experience of increasing the crack resistance of inclined sections with various materials and design measures under static effects have been described. Areas of influence of dynamic loads on reinforced concrete structures reinforced with horizontal grids near the upper and lower faces need to in

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Sharmila, S., and P. Keerthana. "Development of surface coating for underwater concrete structures." International Journal of Engineering & Technology 7, no. 1.9 (2018): 189. http://dx.doi.org/10.14419/ijet.v7i1.9.9819.

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Surface coating is the most focused research problem in the construction sites to repair the deteriorated concrete. Surface coating is an most necessary process to be performed in concrete to avoid the issues such as aesthetics, sealing, chemical resistance or abrasion resistance. These coatings are termed as special resins with proper compositions of materials which can prevent the transmission of water and contaminants while at the same time keeping the structure safe. This research work focuses on preparation of surface and the protective surface coating to protect the concrete. High perfor

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40

Petrova, Olena, Tetiana Manushkina, Natalia Shevchuk, and Tetiana Kachanova. "Modern Materials for Fire Protection of Reinforced Concrete Agro-Industrial Structures." Key Engineering Materials 952 (August 18, 2023): 105–10. http://dx.doi.org/10.4028/p-bnrf9f.

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This article presents the results of fire properties of modern materials, namely geopolymer fire-insulating mixtures of domestic production to provide fire protection of reinforced concrete structures of the agroindustrial complex. According to the data of the fire test, it has been established that with the thickness of a fire-proof geopolymer coating of 10 mm no heating of the surface of a reinforced concrete specimen (300<380 °С) or of the armature at the depth of its embedding (124.5<500 °С) up to the limit states has been noted. It they shown that the protective coating reduces the

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41

Wu, Jianqin, Jiannan Zhou, Ying Xu, et al. "Dynamic Responses of Blast-Loaded Shallow Buried Concrete Arches Strengthened with BFRP Bars." Materials 15, no. 2 (2022): 535. http://dx.doi.org/10.3390/ma15020535.

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This paper proposes a prefabricated basalt fiber reinforced polymer (BFRP) bars reinforcement of a concrete arch structure with superior performance in the field of protection engineering. To study the anti-blast performance of the shallow-buried BFRP bars concrete arch (BBCA), a multi-parameter comparative analysis was conducted employing the LS-DYNA numerical method, which was verified by the results of the field explosion experiments. By analyzing the pressure, displacement, acceleration of the arch, and the strain of the BFRP bars, the dynamic response of the arch was obtained. This study

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42

Novikov, Nikolay V., Svetlana V. Samchenko, and Galina E. Okolnikova. "Barite-containing radiation protective building materials." RUDN Journal of Engineering Researches 21, no. 1 (2020): 94–98. http://dx.doi.org/10.22363/2312-8143-2020-21-1-94-98.

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Due to the active development of industries using nuclear technology, the creation of highly effective and cost-effective building materials for protection against hazardous ionizing radiation is of increasing interest. Widespread in the field of radiation-protective building materials are barite-containing concrete. The purpose of this article is to establish the prospects of their use in nuclear facilities, as well as to find ways to improve their technical and operational characteristics. For this an analysis of relevant literature and scientific research in the field of radiation-protectiv

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Kazakov, Dmitry, Aleksandr Tkachenko, Arben Arzumanov, Leonid Bolotskikh, and Andrey Mishchenko. "Development of technology for the construction of heat-efficient monolithic vaults from basalt fiber concrete." E3S Web of Conferences 258 (2021): 09041. http://dx.doi.org/10.1051/e3sconf/202125809041.

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The paper considers the issue of erection of structures of buildings and structures from monolithic dispersed-reinforced concrete, capable of performing not only a load-bearing, but also a protective function. The analysis of a number of dispersed-reinforced concretes with both structural and thermal insulation properties has been carried out. An increase in thermal efficiency is expected through the use of industrial porous aggregates. The technical indicators of samples of basalt-fiber-reinforced concrete with fillers: perlite and foam glass have been experimentally investigated. Experimenta

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Gerdes, A., and F. H. Wittmann. "Oberflächenschutzsysteme für das Erstellen von hochbeständigen Betonkonstruktionen / Protective Coatings of Concrete Structures for High Durability." Restoration of Buildings and Monuments 3, no. 5 (1997): 515–34. http://dx.doi.org/10.1515/rbm-1997-5211.

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Abstract In practice concrete structures are often exposed to various environmental impacts which determine strongly durability of concrete and concrete structures. Costs of restoration of damaged concrete structures may be extremely high, in some cases higher than demolition and rebuilding. Not only real costs and financial investment for repair measures may be exorbitant, but limited use and negative impacts on the environment have to be taken into consideration too. In this paper a concept to reach sufficient durability is being developed in which technical, ecological and economical requir

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Oleinik, Pavel, Tatyana Kuzmina, and Konstantin Kuzmin. "Effective technology for strengthening natural slopes and artificial structures." MATEC Web of Conferences 193 (2018): 02040. http://dx.doi.org/10.1051/matecconf/201819302040.

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The problems of strengthening mountain slopes, slopes of artificial structures and banks of water bodies are considered. The methods, materials and structures used for this purpose are given with a brief description of the work performance techniques. The experience of protecting mountain slopes due to the force inertial compaction of the concrete mix prepared in a special hermetic high-speed compulsory concrete mixer is indicated. The mixture under pressure is uniformly transported along the material line at a speed of 120-200 m/s to the nozzle. The schemes of the force inertial compaction of

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Coffetti, Denny, Elena Crotti, Gabriele Gazzaniga, Roberto Gottardo, Tommaso Pastore, and Luigi Coppola. "Protection of Concrete Structures: Performance Analysis of Different Commercial Products and Systems." Materials 14, no. 13 (2021): 3719. http://dx.doi.org/10.3390/ma14133719.

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The increasing demand for reconstructions of concrete structures and the wide availability on the market of surface protective products and systems could lead to misunderstandings in the decision of the most effective solution. Surface protectors have become increasingly widespread in recent years in concrete restoration interventions thanks to their properties: they are able to protect the substrate from aggressive agents and consequently extend the useful life of the structures. The aim of this article is first of all to present the surface protective treatments available on the market, outl

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Topchiy, Dmitriy, and Egor Safenkov. "Foreign and domestic expertise in strengthening concrete structures with carbon fiber." E3S Web of Conferences 164 (2020): 14014. http://dx.doi.org/10.1051/e3sconf/202016414014.

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Over the last 10-15 years, Russia has faced a significant increase in the scope of reconstruction work (including restoration and overhaul) for buildings of various purposes aiming to extend the life cycle of existing facilities and to bring buildings in line with requirements of modern regulatory documents in terms of strength and increase in their energy efficiency. Strengthening the building structures with composite materials is by far the most ‘gentle’ method of restoring building structures and improving their operational performance. At the same time, there is only a small number of pub

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Semko, O. V., N. M. Mahas, A. R. Mishchenko, and R. R. Mishchenko. "MOISTURE EFFECTS ON THE BUILDINGS ENCLOSING STRUCTURES." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 1, no. 50 (2018): 278–84. http://dx.doi.org/10.26906/znp.2018.50.1086.

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Analysis of the most common damages due to moisture effects on brick, reinforced-concrete and wooden buildings enclosing structures has been carried out. Causes of their occurrence and prevention ways have been analyzed. The most dangerous moisture types such as constructional, soil, atmospheric, operational, hygroscopic and condensed have been outlined. Measures to ensure protection against water-saturation of building elements such as eaves size, walls waterproofing, available airways, protective painting, hydrophobic impregnation, sufficient ventilation, heating, water supply systems and dr

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Wang, Hong Song, Wei Wang, Rui Wang, Wen Bin Wang, Lei Li, and Qian Tian. "The Concrete Protective Effect of Silane Impregnated Materials with Different Molecular Chain Structure." Advanced Materials Research 919-921 (April 2014): 439–42. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.439.

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The concrete building protection materials is widely used in the hydraulic and bridge engineering. It was found that integral silane treatment can improve the durability of concrete.Compared with other protective methods, Silicone protect materials is the most convenient and environmentally-friendly.The silicone materials can effectively block the invasion of harmful substances such as water and chloride ions, and prevent the occurrence of the freeze-thaw damage. Few studies reported the protective effects of silane material which have different molecular structures .We found that Silane with

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Tsapko, Yuriy, Olga P. Bondarenko, Oleksii Tsapko, and Maryna Sukhanevych. "Justification of the Efficiency of Application of Plaster for Fire Protection of Concrete Structures." Defect and Diffusion Forum 437 (October 7, 2024): 69–78. http://dx.doi.org/10.4028/p-hdz0vg.

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The problem of using concrete for building structures is to ensure their stability and durability during operation within wide limits. Therefore, the object of research was the change in the properties of concrete during a fire and its protection when applying a heat-insulating layer of plaster, which is able to inhibit the temperature when the flame affects the coating. It has been proven that in the process of thermal action on fire-resistant plaster, the process of thermal insulation of concrete consists in the application of materials with low thermal conductivity as part of the plaster on

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