Academic literature on the topic 'Composite reinforced concrete Testing'

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Journal articles on the topic "Composite reinforced concrete Testing"

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Michalek, Peter, Jakub Kralovanec, and Jan Bujnak. "Composite Steel and RPC Testing." Pollack Periodica 15, no. 3 (November 7, 2020): 144–49. http://dx.doi.org/10.1556/606.2020.15.3.14.

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Reactive powder concretes are a set of ultrahigh-strength concrete reinforced with fibers. Their compressive strength is greater than 100 MPa. For assuring connection of steel beams and a concrete slab, steel stud connectors are used. The investigation of that kind of shear connection efficiency, in the case of this higher strength concrete deck using standard push-out test specimens has been executed. The experimental results are presented in the paper.
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Hosseini Mehrab, Alireza, Seyedmahdi Amirfakhrian, and M. Reza Esfahani. "Fracture characteristics of various concrete composites containing polypropylene fibers through five fracture mechanics methods." Materials Testing 65, no. 1 (January 1, 2023): 10–32. http://dx.doi.org/10.1515/mt-2022-0210.

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Abstract This paper investigates and compares the experimental results of fracture characteristics in various polypropylene fiber-reinforced concretes (high strength concrete, lightweight concrete, and engineered cementitious composite) on 90 three-point bend (notched and un-notched) beams. Five widely used fracture mechanics testing methods, such as work of fracture method, stress-displacement curve method, size effect method, J integral method, and ASTM E399, were used to investigate the fracture behavior. Results have demonstrated that fracture energy and fracture toughness improved as the dosage of polypropylene fibers increased in concretes. However, this improvement was different in concretes owing to various results of fracture mechanics testing methods and different properties of each concrete. Aggregates played significant role in the performance of polypropylene fibers on the fracture behavior of concretes. Among testing methods, the ASTM E399 showed the lowest values for the fracture toughness of concretes. Both work of fracture and stress-displacement curve methods exhibited appropriate results for the fracture energy of polypropylene fiber-reinforced concrete composites. The accuracy of size effect method was acceptable for determining size-independent fracture parameters of plain high strength and lightweight concretes. Furthermore, the J integral method showed more relevant results for the fracture toughness of polypropylene fiber-reinforced engineered cementitious composite.
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Wang, Yan Lei, Qing Duo Hao, and Jin Ping Ou. "Experimental Testing of Fiber Reinforced Polymer-Concrete Composite Beam." Advanced Materials Research 168-170 (December 2010): 549–52. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.549.

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A new form of fiber reinforced polymer (FRP)-concrete composite beam is proposed in this study. The proposed composite beam consists of a GFRP box beam combined with a thin layer of concrete in the compression zone. The interaction between the GFRP beam and the concrete was obtained by bonding coarse-sand on the top flange of the GFRP beam. One GFRP box beam and one GFRP-concrete composite beam were investigated in four-point bending test. Load-deflection response, mid-span longitudinal strain distributions and interface slip between GFRP beam and the concrete for the proposed composite beam were studied. Following conclusions are drawn from this study: (1) the stiffness and strength of the composite beam has been significantly increased, and the cost-to-stiffness ratio of the composite beam has been drastically reduced comparing with GFRP-only box beam; (2) a good composite action has been achieved between the GFRP beam and the concrete; (3) crushing of concrete in compression defines flexural collapse of the proposed composite beam..
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Mander, Thomas J., and Zachery I. Smith. "Composite Steel Stud Blast Panel Design and Experimental Testing." Applied Mechanics and Materials 82 (July 2011): 479–84. http://dx.doi.org/10.4028/www.scientific.net/amm.82.479.

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Based on Federal Aviation Authority (FAA) requirements, project specific blast loads are determined for the design of a new airport traffic control tower. These blast loads must be resisted by exterior wall panels on the control tower, protecting building occupants from intentional explosives attack scenarios. Such blast resistant walls are typically constructed of thick reinforced concrete panels or composite steel plate and rolled sections, as conventional building cladding systems have relatively low blast resistance. While these more robust design approaches are valid, the additional cladding mass they represent will significantly increase the base shear and overturning demand in seismic zones. This paper investigates the use of a light structural system comprised of a steel stud wall assembly partially embedded in a thin layer of concrete to obtain composite action. Fiber reinforced polymer (FRP) composites are also included to increase the blast resistance and aid in keeping the panel weight to a minimum. Two full-scale composite steel stud walls are designed, constructed, and tested dynamically in the BakerRisk shock tube. The stud walls consist of back-to-back 150 mm deep, 14 gauge (1.8 mm thick), cold-formed steel studs spaced at 610 mm on center. Both specimens have a 50 mm thick normal weight concrete layer, reinforced with welded wire mesh that is welded to the stud compression flanges to achieve composite action. Two layers of Tyfo® SEH-51A fiber reinforced composites are used on the tension flange of the steel studs. A single layer of Tyfo® SEH-51A composites is used on the tension face of the concrete layer between the studs for one of the specimens. Web stiffeners are used at the bearing support to prevent premature web crippling shear failure of the specimens. The stud walls are analyzed using single-degree-of-freedom (SDOF) models. A non-linear moment-curvature relationship, accounting for actual material constitutive properties, is used for determining the resistance function of the walls. Blast pressure and impulse data from the shock tube tests is used to compare analytical predictions to the measured displacement-time response. Analytical predictions of panel response for both tests are within ten percent of the observed response based on displacement.
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Scarpitti, Nicholas, Nicholas Gavio, Alexander Pol, and Seyed Hamid Reza Sanei. "Recycling Unrecycled Plastic and Composite Wastes as Concrete Reinforcement." Journal of Composites Science 7, no. 1 (January 5, 2023): 11. http://dx.doi.org/10.3390/jcs7010011.

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The land disposal of waste material is a major environmental threat, and recycling efforts must be exponentially improved to mitigate it. In this paper, a feasibility study was conducted to reinforce concrete with waste materials that are not typically recycled. Compression testing was performed to evaluate the mechanical properties of the concrete specimens. The results were compared with a conventional wire mesh reinforcement used in concrete. Alternative reinforcements that are typically disposed of in landfill were used, namely, plastic regrind, carbon fiber scraps, tempered glass, coarse aggregates, and wire mesh. For each reinforcement type, four specimens were manufactured to evaluate the consistency of the results. Cylindrical specimens with ASME standard dimensions of 10.16 cm × 20.32 cm were tested using a Tinius-Olsen compression testing machine after seven days of curing. A constant strain rate of 0.25 MPa/s was applied until a load drop of 30% was detected. The results show that, while the recycled reinforcements had lower compressive strengths than the wire mesh, they maintained a load-carrying capacity of more than 80%. A major improvement was observed in terms of the ductility and toughness of the reinforced concretes. The recycled-carbon-fiber-reinforced specimens showed 12% strain at failure, a major improvement in concrete ductility. The findings of this research indicate that such recycled particles and fibers without any post-processing can be used in the reinforcement of concrete, with a significant improvement in ductility.
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Nevskii, A. V. "CARBON FIBER REINFORCED CONCRETE COLUMNS UNDER STATIC AND DYNAMIC LOADS." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture, no. 4 (August 29, 2018): 111–21. http://dx.doi.org/10.31675/1607-1859-2018-20-4-111-121.

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Many new developments in the field of creating promising building materials relate to polymer fiber composites for reinforcing concrete constructions. The most effective use of such composites is provided by carbon fiber reinforcement. To date, the issues related to design, calculation and use of concrete constructions with carbon composite reinforcement under dynamic compressive loading have not been well studied. Purpose: The purpose of this study is to determine strength of dynamically loaded concrete constructions reinforced with carbon fiber using different methods of modification of deformation properties of concrete. Methodology: Experimental studies include testing two concrete columns with steel rod reinforcement and six concrete columns modified by carbon fiber and carbon composite reinforcement. The columns are tested under axial static and dynamic compressive loads. Research findings: The resulting longitudinal deformations of concrete and carbon-composite reinforcement and the limiting compressive force are determined. Value: New experimental data are obtained for the concrete column strength reinforced with carbon composite rods. The experimental results indicate the effective resistance to compression of carbon composite reinforcement. This phenomenon is observed in the case of carbon fiber and carbon composite reinforcement of compressed concrete constructions under the dynamic load. Practical implications: Resistance of carbon composite reinforcement to the dynamic compression affects the concrete strength, especially when its deformation properties are modified by carbon fiber and carbon composite reinforcement. The obtained results can be used in strength calculations of concrete constructions under the dynamic load.
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Prabakaran, E., D. Vasanth Kumar, A. Jaganathan, P. Ashok Kumar, and M. Veeerapathran. "Analysis on Fiber Reinforced Epoxy Concrete Composite for Industrial Flooring – A Review." Journal of Physics: Conference Series 2272, no. 1 (July 1, 2022): 012026. http://dx.doi.org/10.1088/1742-6596/2272/1/012026.

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Abstract Fiber composites are the having an good scope in construction industry as they are light in weight, durable, economic, and resistant to temperatures. Many researchers concentrate on the composites for the industrial flooring with the fibers. The main objective of this paper is to review the fiber reinforced epoxy for industrial flooring. Epoxy can be used as flooring elements in industries as they deliver good performance. Since, natural and synthetic fibres can be used with filler matrices, which are very much cheaper than the conventional steel fibres reinforced composite concrete flooring and other type of composites here fibre is considered for reinforcing with epoxy or polymer concrete filler matrix. Fibre-polymer and fibre-concrete composite properties has been reviewed for testing procedure for flexural test, bending test, tensile test and based on the results, it is clear that the fibre-polymer concrete composite, which has good mechanical properties and performance than the mentioned composites, can be made for industrial flooring
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Wang, Yan Lei, Qing Duo Hao, and Jin Ping Ou. "Flexural Testing of Fiber Reinforced Polymer-Concrete Composite Bridge Superstructure." Advanced Materials Research 79-82 (August 2009): 1855–58. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1855.

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The concept of the fiber reinforced polymer (FRP)-concrete composite design was exploited in a new type of bridge superstructure. The proposed FRP-concrete composite bridge superstructure is intended to have durable, structurally sound, and cost effective composite system that will take full advantage of the inherent and complementary properties of FRP material and concrete. As a trial case, a prototype bridge superstructure was designed as a simply supported single-span one-lane bridge with a span length of 10 m. The bridge superstructure consists of two bridge decks and each bridge deck is comprised of four FRP box sections combined with a thin layer of concrete in the compression zone. A test specimen, fabricated as a one-third scale model of the prototype bridge superstructure, was subjected to four-points loading to simulate the two heaviest axles of the Chinese design truck load. The test results indicate that the proposed bridge model meets the stiffness requirement and has significant reserve strength.
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Lindner, Marco, Konrad Vanselow, Sandra Gelbrich, and Lothar Kroll. "Fibre-reinforced polymer stirrup for reinforcing concrete structures." Technologies for Lightweight Structures (TLS) 3, no. 1 (January 24, 2020): 17–24. http://dx.doi.org/10.21935/tls.v3i1.117.

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Fibre-plastic composites offer an interesting alternative to concrete reinforcement. In order to expandthe application spectrum of reinforcing elements in fibre composite construction, a new steel-free bracingsystem with reduced radii of curvature was developed. An improvement in load carrying capacity couldbe proven in extensive investigations based on international testing methods and verified by practicaltests. With the help of newly reinforced precast concrete elements from the area of waterways and trafficroutes, a high potential for lightweight construction and resource efficiency can be impressivelydemonstrated.
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Orlowsky, Jeanette, Markus Beßling, and Vitalii Kryzhanovskyi. "Prospects for the Use of Textile-Reinforced Concrete in Buildings and Structures Maintenance." Buildings 13, no. 1 (January 10, 2023): 189. http://dx.doi.org/10.3390/buildings13010189.

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This paper discusses the state of the art in research on the use of textile-reinforced concretes in structural maintenance. Textile-reinforced concretes can be used in structural maintenance for various purposes, including the sealing and protection of the existing building structures, as well as for the strengthening of structures. The first-mentioned aspects are explained in this paper on the basis of example applications. A special focus is placed on the maintenance of heritage-protected structures. The development, characterization, and testing of a textile-reinforced concrete system for a heritage-protected structure are presented. Examples of the application of textile-reinforced concrete for strengthening highway pavements and masonry are also given. In particular, the possibility of adapting the textile-reinforced concrete repair material to the needs of the individual building is one advantage of this composite material.
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Dissertations / Theses on the topic "Composite reinforced concrete Testing"

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Lam, Wai-yin, and 林慧賢. "Plate-reinforced composite coupling beams: experimental and numerical studies." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37311797.

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Richardson, Sarah. "In-Situ Testing of a Carbon/Epoxy IsoTruss Reinforced Concrete Foundation Pile." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1280.pdf.

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Bhutta, Salman Ahmed. "Analytical modeling of hybrid composite beams." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-11102009-020112/.

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Rubin, Ariel. "Strenghtening of reinforced concrete bridge decks with carbon fiber composites." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/19320.

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Yuan, Lie Ping. "Partial interaction behaviour of bolted side plated reinforced concrete beams." Title page, abstract and contents only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phl7161.pdf.

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Includes bibliographical references (p. 185-189) Aims to determine the effect of partial interaction on the behaviour of the concrete beam, plate and bolt connector components of the composite plated beam. Develops design rules for the determination of the ultimate capacity for bolted plate reinforced composite beams.
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Venkata, Vijai Kumar. "Development and testing of hurricane resistant laminated glass fiber reinforced composite window panels /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426111.

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Rafeeq, Ranj. "Torsional Strengthening of Reinforced Concrete Beams Using CFRP Composites." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/3125.

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Few decades ago, there were no guidelines for torsion design of reinforced concrete (RC) beams. Hence, many existing beams in older buildings have a lack of adequate torsional strength since they were not properly designed for torsion. One way to regain/rehabilitate adequate torsional strength is through application of externally bonded carbon fiber reinforced polymers (CFRP). To date, American Concrete Institute (ACI) code, as well as other building codes, do not have recommendations or provisions for strengthening RC beams for torsion using fiber-reinforced polymer (FRP) composites due to the inexistence of conclusive experimental and analytical data. Of the very limited works on this behavior, the majority of the focus has been devoted to experimental works. Realistic spandrel beams in a building that lack torsional strength were modelled in this research, and strengthened to examine various behaviors such as load capacity, deflection, torque, twist, crack propagation, ductility, and failure modes. For this purpose, six RC beams were tested: four reference beams and two strengthened beams were used to observe additional capacity through the use of carbon fiber-reinforced polymer (CFRP) sheets. To strengthen the beams, one layer of sheets was completely wrapped around them. Results show an additional torsional capacity of 63% and 178% relative to their respective reference beams. Through strengthening, modes of failure of the beams changed from brittle torsion-dominated failure to shear-flexure failure in both beams. The study also included crack pattern and ductility of test beams. Cracks became smaller in width and more evenly distributed across the torsion-loaded area, and torsional ductility was enhanced by 266% and 165% respectively. Flexural ductility was also greatly enhanced by more than five folds. Finally, using ACI 318-14, ACI 440.2R-02, and available formulae in the literature, the beams were analyzed and the respective values were compared.
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Sheats, Matthew Reed. "Rehabilitation of reinforced concrete pier caps using carbon fiber reinforced composites." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/19490.

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Lee, Tuan Kuan 1976. "Shear strength of reinforced concrete T-beams strengthened using carbon fibre reinforced polymer (CFRP) laminates." Monash University, Dept. of Civil Engineering, 2003. http://arrow.monash.edu.au/hdl/1959.1/6647.

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Ogura, Hiroki, Venkatesh Naidu Nerella, and Viktor Mechtcherine. "Developing and Testing of Strain-Hardening Cement-Based Composites (SHCC) in the Context of 3D-Printing." Molecular Diversity Preservation International (MDPI), 2018. https://tud.qucosa.de/id/qucosa%3A33325.

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Incorporating reinforcement into the practice of digital concrete construction, often called 3D-concrete-printing, is a prerequisite for wide-ranging, structural applications of this new technology. Strain-Hardening Cement-based Composites (SHCC) offer one possible solution to this challenge. In this work, printable SHCC were developed and tested. The composites could be extruded through a nozzle of a 3D-printer so that continuous filaments could be deposited, one upon the other, to build lab-scaled wall specimens without noticeable deformation of the bottom layers. The specimens extracted from the printed walls exhibited multiple fine cracks and pronounced strain-hardening characteristics under uniaxial tensile loading, even for fiber volume fractions as low as 1.0%. In fact, the strain-hardening characteristics of printed specimens were superior to those of mold-cast SHCC specimens.
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Books on the topic "Composite reinforced concrete Testing"

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Kachlakev, Damian I. Behavior of concrete specimens reinforced with composite materials: Laboratory study. Salem, Or: Oregon Dept. of Transportation, Research Group, 2000.

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Grace, Nabil F. Environmental/durability evaluation of FRP composite strengthened bridges. Southfield, Mich: Lawrence Technological University, Civil Engineering Dept., 2003.

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Kachlakev, Damian I. Testing of full-size reinforced concrete beams strengthened with FRP composites: Experimental results and design methods verification. Salem, OR: Oregon Dept. of Transportation, Research Group, 2000.

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Kachlakev, Damian I. Testing of full-size reinforced concrete beams strengthened with FRP composites: Experimental results and design methods verification. Salem, OR: Oregon Dept. of Transportation, Research Group, 2000.

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Mobasher, Barzin. Mechanics of fiber and textile reinforced cement composites. Boca Raton: CRC Press, 2011.

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N, Swamy R., International Union of Testing and Research Laboratories for Materials and Structures., and University of Sheffield. Dept. of Mechanical and Processd Engineering., eds. Fibre reinforced cement and concrete: Proceedings of the fourth international symposium held by RILEM (the International Union of Testing and Research Laboratories for Materials and Structures) and organized by the Department of Mechanical and Process Engineering, University of Sheffield, UK, Sheffield, July 20-23, 1992. London: E & FN Spon, 1992.

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Pridmore, Anna B. Structural response of near surface mounted CFRP strengthened reinforced concrete bridge deck overhang. La Jolla, Calif: Structural Systems Research Project, Dept. of Structural Engineering, University of California, San Diego, 2008.

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Halicka, Anna. Studium stanu naprężeń i odkształceń w płaszczyźnie styku i strefie przypodporowej elementów zespolonych z udziałem betonów skurczowych i ekspansywnych: A study of the stress-strain state in the interface and support zones of composite structures with shrinking and expansive concretes. Lublin: Wydawnictwo Politechniki Lubelskiej, 2007.

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1931-, Reinhardt H. W., Naaman Antoine E, International Union of Testing and Research Laboratories for Materials and Structures., American Concrete Institute, Universität Stuttgart, and University of Michigan, eds. High performance fiber reinforced cement composites: Proceedings of the International Workshop "High Performance Fiber Reinforced Cement Composites" held by RILEM (the International Union of Testing and Research Laboratories for Materials and Structures) and ACI (American Concrete Institute), Stuttgart University and the University of Michigan, and organized by Stuttgart University, Germany : Mainz, June 23-26, 1991. London: E & FN Spon, 1992.

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L, Gamble W., ed. Reinforced concrete slabs. 2nd ed. New York: Wiley, 2000.

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Book chapters on the topic "Composite reinforced concrete Testing"

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Robins, P. J., S. A. Austin, and C. H. Peaston. "Toughness Testing of Fibre Reinforced Concrete." In Composite Structures 5, 729–42. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1125-3_45.

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Dulude, C., E. Ahmed, S. El-Gamal, and B. Benmokrane. "Testing of Large-Scale Two-Way Concrete Slabs Reinforced with GFRP Bars." In Advances in FRP Composites in Civil Engineering, 287–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_61.

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Monti, Giorgio, Antonio Bilotta, Annalisa Napoli, Emidio Nigro, Floriana Petrone, and Roberto Realfonzo. "Design by Testing and Statistical Determination of Capacity Models." In Design Procedures for the Use of Composites in Strengthening of Reinforced Concrete Structures, 5–38. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-7336-2_2.

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Nour, Omar, Osama Salem, and Ahmed Mostafa. "Experimental Testing of GFRP-Reinforced Concrete Beams with Mid-Span Lap Splices Utilizing Straight- and Hooked-End Bars." In 8th International Conference on Advanced Composite Materials in Bridges and Structures, 103–10. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09409-5_12.

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Mosley, W. H., J. H. Bungey, and R. Hulse. "Composite construction." In Reinforced Concrete Design, 350–73. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-14911-7_13.

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Brigante, Domenico. "Strengthening of Reinforced and Prestressed Reinforced Concrete Structures." In New Composite Materials, 55–93. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01637-5_5.

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Robins, P. J., and S. A. Austin. "Melt Extract Fibre Reinforced Sprayed Concrete." In Composite Structures 3, 242–53. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4952-2_18.

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Yao, Jialiang, Zhigang Zhou, and Hongzhuan Zhou. "Steel Fiber Reinforced Concrete." In Highway Engineering Composite Material and Its Application, 51–80. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6068-8_3.

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Purkiss, J. A. "Some Mechanical Properties of Glass Reinforced Concrete at Elevated Temperatures." In Composite Structures 3, 230–41. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4952-2_17.

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Lukasenoks, Arturs, Andrejs Krasnikovs, Arturs Macanovskis, Olga Kononova, and Videvuds Lapsa. "Short Composite Fibres for Concrete Disperse Reinforcement." In Short Fibre Reinforced Cementitious Composites and Ceramics, 85–95. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-00868-0_6.

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Conference papers on the topic "Composite reinforced concrete Testing"

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"Restrained Shrinkage Tests on Fiber Reinforced Cementitious Composites." In SP-155: Testing of Fiber Reinforced Concrete. American Concrete Institute, 1995. http://dx.doi.org/10.14359/932.

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"Impact Tests on Cement-Based Fiber Reinforced Composites." In SP-155: Testing of Fiber Reinforced Concrete. American Concrete Institute, 1995. http://dx.doi.org/10.14359/934.

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"Experimental R-Curves for Assessment of Toughening in Fiber Reinforced Cementitious Composites." In SP-155: Testing of Fiber Reinforced Concrete. American Concrete Institute, 1995. http://dx.doi.org/10.14359/930.

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Huang, B.-T. "Testing method for interface mode II fracture of plain concrete and fiber-reinforced cementitious composite." In 10th International Conference on Fracture Mechanics of Concrete and Concrete Structures. IA-FraMCoS, 2019. http://dx.doi.org/10.21012/fc10.233093.

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Mirza, Olivia, Andrew Talos, Matthew Hennessy, and Brendan Kirkland. "Behaviour and Design of Composite Steel and Precast Concrete Transom for Railway Bridges Application." In 12th international conference on ‘Advances in Steel-Concrete Composite Structures’ - ASCCS 2018. Valencia: Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/asccs2018.2018.6993.

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Currently most railway bridges in Australia require the replacement of the timber transoms that reside in the railway system. Composite steel and precast reinforced concrete transoms have been proposed as the replacement for the current timber counterparts. This paper outlines the structural benefits of composite steel-concrete transoms for ballastless tracks when retrofitted to existing railway steel bridges. However, in existing studies, it is found that there is little investigation into the effect of derailment loading on reinforced concrete transoms. Therefore, this paper provides an investigation of derailment impact loading on precast reinforced concrete transoms. The paper herein investigates the derailment impact loading of a train through experimental testing and numerical analysis of conventional reinforced concrete transoms. The paper also evaluates the potential use of 3 different shear connectors; welded shear studs, Lindapter bolts and Ajax bolts. The results of the experimental tests and finite element models are used to determine whether each transom is a viable option for the replacement of the current timber transoms on the existing bridges in Australia and whether they provide a stronger and longer lasting solution to the current transom problem.
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"Controlled Crack Growth Tests for Optimization of Micro-Fiber Reinforced Cement Composites." In SP-201: Fracture Mechanics for Concrete Materials: Testing and Applications. American Concrete Institute, 2001. http://dx.doi.org/10.14359/10758.

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Meyer, Nico. "Interacting Threats Mitigated: Carbon Composite System’s Ability to Restore/Increase Pipeline Strength." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63790.

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Fiber Reinforced Polymers (FRPs), a qualified structural building material for several industries, have recently demonstrated additional validation in pressure pipeline applications. With validated durability’s of their own, glass and carbon fiber reinforced polymers (GFRP and CFRP) have demonstrated significant ability to prevent and arrest corrosion in steel and concrete applications while increasing/renewing structural capacities of corroding elements. Although other coatings prevent deterioration of ferrous materials, CFRP and GRFP applications can reinforce and/or effectively replace the pipeline using the existing pipe as a composite form. GFRP and CFRP applications have proven ability in external applications of dented and artificially corroded pressure pipelines with interacting threats of girth and seam welds. The repair systems received cyclic loading up to 72% of the specified minimum yield strength and tested beyond 100,000 and 370,000 pressure cycles without failure for dents and simulated corrosion, respectively. This paper will provide a quick overview of relevant testing on GFRP and CFRP application for corrosion mitigation/rehabilitation with more detail on the recent validation of FRP applications for dented and corroded pressure pipes.
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Huo, Jin, Zirong Hu, and Yuping Sun. "Modeling and Analysis of Concrete-Filled Steel Structure Under Aircraft Impact." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48874.

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Concrete-filled steel structures (SC), or called steel concrete composite structures are composed of steel plates and reinforced concrete. This kind of structures has demonstrated more effective against blast and impact loads, and has been used in risk-sensitive structures such as the nuclear electric power plant and other critical constructions. The comprehensive modeling and analysis is performed in this paper for the full scale SC panel against aircraft impact after the testing results of 1/7.5 scaled model was reviewed and correlated. The methodology, modeling approach, and mesh density sensitivity investigation is presented.
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Young, Andrew C., Steve Hettick, Habib J. Dagher, Anthony M. Viselli, and Andrew J. Goupee. "VolturnUS 1:8-Scale FRP Floating Wind Turbine Tower: Analysis, Design, Testing and Performance." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23454.

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In May of 2013 the VolturnUS 1:8 floating semi-submersible wind turbine was successfully deployed off the coast of Castine, Maine, making the unit the first grid connected offshore turbine in the United States. The VolturnUS 1:8 structure features a 20 kW turbine, a post-tensioned and reinforced concrete semi-submersible base and a fiber reinforced plastic (FRP) tower (E-glass and polyester resin). The VolturnUS 1:8 structure is a geometrically 1:8-scale of a 6 MW floating turbine design and is used to demonstrate the feasibility of both the concrete base and FRP tower and validate the performance of the structure in a scaled environment. Data collected from the deployed 1:8-scale structure will be used for modeling and simulating the behavior of the system at full-scale. The effort was led by the University of Maine’s Advanced Structures and Composites Center (UMaine) and a consortium of industry partners, including FRP manufacturer Ershigs, Inc. An overview of the process and methodology used in the analysis, design and testing of the 1:8 scale FRP floating wind turbine tower is presented. The use of an FRP tower on a floating wind turbine platform offers the benefits of reduced tower mass and maintenance requirements and has the potential to further reduce hull mass by lowering the global center of gravity of the structure. An FRP tower for use on the UMaine semi-submersible concrete VolturnUS 1:8 platform was developed that meets all strength and serviceability criteria and is robust enough to withstand the loading from both wind and waves. An overview of the tower loads analysis and FAST modeling, tower structural design, structural proof testing and preliminary analysis of performance are presented. The VolturnUS 1:8 wind turbine tower is the first time FRP materials have been used in an offshore wind tower application. Further, the methodologies and procedures that were developed in the design of the pilot-scale tower are directly applicable to the design and analysis of composite wind turbine towers at the full-scale level. These “lessons learned” are already in use as Ershigs and UMaine work to design a full-scale composite tower over 80 meters tall for use on the VolturnUS platform with a 6MW wind turbine. The results of the 1:8-scale program demonstrate the successful use of an FRP wind turbine tower on a floating platform and highlights the potential for the use of an FRP tower at the full-scale (6 MW) level.
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Marshall, Peter, Vul Thang, Nicholas Brake, and Paul Corder. "Bond Enhancement in Curved Sandwich Shells." In SNAME 11th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2014. http://dx.doi.org/10.5957/icetech-2014-111.

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As follow-up to recent papers by Marshall et al. (2010, 2012), research on steel-concrete-steel (SCS) sandwich shells for Arctic offshore structures continues at two universities. National University of Singapore is testing heavy transverse reinforcement which ties the outer steel plates together. Lamar University in Texas originally studied the composite ice wall concept in the late 1980s, and is now testing surface treatment with a size-tiered gradation of mini-studs, macro fibers (steel) and micro fibers (synthetic), intended to develop the full bulk properties of the Fiber Reinforced Concrete (FRC) core in radial tension and punching shear. Using ISO’s design non-hydrostatic partial span loading on the Singapore Cone, radial bond stress at the inner steel plate is low and deemed attainable for both the stud enhanced bonding surface and the bulk concrete core. The steel shell serves as prefabricated permanent formwork, and the arched vaults resist external ice loading mainly by compression, provided the sandwich does not disintegrate in an unstable fashion.
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Reports on the topic "Composite reinforced concrete Testing"

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Weiss, Charles, William McGinley, Bradford Songer, Madeline Kuchinski, and Frank Kuchinski. Performance of active porcelain enamel coated fibers for fiber-reinforced concrete : the performance of active porcelain enamel coatings for fiber-reinforced concrete and fiber tests at the University of Louisville. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40683.

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A patented active porcelain enamel coating improves both the bond between the concrete and steel reinforcement as well as its corrosion resistance. A Small Business Innovation Research (SBIR) program to develop a commercial method for production of porcelain-coated fibers was developed in 2015. Market potential of this technology with its steel/concrete bond improvements and corrosion protection suggests that it can compete with other fiber reinforcing systems, with improvements in performance, durability, and cost, especially as compared to smooth fibers incorporated into concrete slabs and beams. Preliminary testing in a Phase 1 SBIR investigation indicated that active ceramic coatings on small diameter wire significantly improved the bond between the wires and the concrete to the point that the wires achieved yield before pullout without affecting the strength of the wire. As part of an SBIR Phase 2 effort, the University of Louisville under contract for Ceramics, Composites and Coatings Inc., proposed an investigation to evaluate active enamel-coated steel fibers in typical concrete applications and in masonry grouts in both tension and compression. Evaluation of the effect of the incorporation of coated fibers into Ultra-High Performance Concrete (UHPC) was examined using flexural and compressive strength testing as well as through nanoindentation.
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Bank, Lawrence C., Anthony J. Lamanna, James C. Ray, and Gerardo I. Velazquez. Rapid Strengthening of Reinforced Concrete Beams with Mechanically Fastened, Fiber-Reinforced Polymeric Composite Materials. Fort Belvoir, VA: Defense Technical Information Center, March 2002. http://dx.doi.org/10.21236/ada400415.

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Bailey, David M., Vincent F. Hock, P. A. Noyce, and M. Restly. Polymer Composite Wrapping and Cathodic Protection System for Reinforced Concrete Piles in Marine Applications. Fort Belvoir, VA: Defense Technical Information Center, June 2013. http://dx.doi.org/10.21236/ada582965.

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Palutke, Karl, Richard G. Lampo, Lawrence Clark, James Wilcoski, Rick Miles, and Darrel Skinner. Demonstration and Validation of a Lightweight Composite Bridge Deck Technology as an Alternative to Reinforced Concrete. Fort Belvoir, VA: Defense Technical Information Center, August 2016. http://dx.doi.org/10.21236/ad1016971.

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Taylor, Benjamin, Yu Qiao, Mark Bowman, and Samuel Labi. The Economic Impact of Implementing Nondestructive Testing of Reinforced Concrete Bridge Decks in Indiana. Purdue University, June 2017. http://dx.doi.org/10.5703/1288284316343.

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Marshall, Orange S., Sweeney Jr., Trovillion Steven C., and Jonathan C. Performance Testing of Fiber-Reinforced Polymer Composite Overlays for Seismic Rehabilitation of Unreinforced Masonry Walls. Fort Belvoir, VA: Defense Technical Information Center, June 2000. http://dx.doi.org/10.21236/ada381207.

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Roesler, Jeffery, Sachindra Dahal, Dan Zollinger, and W. Jason Weiss. Summary Findings of Re-engineered Continuously Reinforced Concrete Pavement: Volume 1. Illinois Center for Transportation, May 2021. http://dx.doi.org/10.36501/0197-9191/21-011.

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This research project conducted laboratory testing on the design and impact of internal curing on concrete paving mixtures with supplementary cementitious materials and evaluated field test sections for the performance of crack properties and CRCP structure under environmental and FWD loading. Three experimental CRCP sections on Illinois Route 390 near Itasca, IL and two continuously reinforced concrete beams at UIUC ATREL test facilities were constructed and monitored. Erodibility testing was performed on foundation materials to determine the likelihood of certain combinations of materials as suitable base/subbase layers. A new post-tensioning system for CRCP was also evaluated for increased performance and cost-effectiveness. This report volume summarizes the three year research effort evaluating design, material, and construction features that have the potential for reducing the initial cost of CRCP without compromising its long-term performance.
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Spletzer, B. L., L. D. Lambert, and V. L. Bergman. Separate effects testing and analyses to investigate liner tearing of the 1:6-scale reinforced concrete containment building. Office of Scientific and Technical Information (OSTI), June 1995. http://dx.doi.org/10.2172/95192.

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Wang, Yao, Mirela D. Tumbeva, and Ashley P. Thrall. Evaluating Reserve Strength of Girder Bridges Due to Bridge Rail Load Shedding. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317308.

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This research experimentally and numerically evaluated the reserve strength of girder bridges due to bridge rail load shedding. The investigation included: (1) performing non-destructive field testing on two steel girder bridges and one prestressed concrete girder bridge, (2) developing validated finite element numerical models, and (3) performing parametric numerical investigations using the validated numerical modeling approach. Measured data indicated that intact, integral, reinforced concrete rails participate in carrying live load. Research results culminated in recommendations to evaluate the reserve strength of girder bridges due to the participation of the rail, as well as recommendations for bridge inspectors for evaluating steel girder bridges subjected to vehicular collision.
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EXPERIMENTAL STUDY ON TRUSS TYPE STEEL REINFORCED CONCRETE JOINTS. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.165.

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"This paper presents an experimental study on the structural behavior of two truss type steel reinforced concrete (SRC) joints. The objective is to characterize the mechanical behavior of SRC joints subjected to static loading. The specimens were scaled from a concrete core tube connected to a mega steel truss. Mechanical behavior of the joint zone is extremely complicated due to the complex geometry and interactive forces among the connected members. Monotonic loading tests were carried out through a self-balanced loading system. Sparse cracks were observed under design loads. Spalling concrete cover was observed for joint B1. Whereas, only a few cracks were observed in the joint D1 after testing. Based on the measured equivalent strains, the interaction zone of steel sections works elastically under 1.5 times of the design loads. This indicates that the joints have sufficient strength to meet the design requirements. The experimental results presented in this paper provides a better understanding of current truss type composite joints and offers ideas for further research based on the authors' findings."
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