Relevant bibliographies by topics / Concrete tensile strength

Academic literature on the topic 'Concrete tensile strength'

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Published: 4 June 2021
Last updated: 19 February 2023

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Journal articles on the topic "Concrete tensile strength"

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Biel, Timothy D., and Hosin Lee. "Magnesium Oxychloride Cement Concrete with Recycled Tire Rubber." Transportation Research Record: Journal of the Transportation Research Board 1561, no. 1 (January 1996): 6–12. http://dx.doi.org/10.1177/0361198196156100102.

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Either portland cement or magnesium oxychloride cement was used as binders for concretes that incorporated fine rubber aggregate, ranging from 0 to 25 percent by volume. The concretes were tested for their compressive and split tensile strengths to determine whether the use of a magnesium oxychloride cement along with recycled tire rubbers would improve concrete properties. Failure of the concrete around the rubber particles was attributed to tension failure, leading to weak shear failure of the concrete matrix. Both portland and magnesium oxychloride cement concretes lost 90 percent of their compressive strength with 25 percent rubber by volume. The portland cement concrete retained 20 percent of its tensile strength, and the magnesium oxychloride cement concrete retained 35 percent of its tensile strength. Both compressive and tensile strengths of magnesium oxychloride cement rubber concrete were significantly higher than rubberized portland cement rubber concrete.
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Windisch, Andor. "The tensile strength: The most fundamental mechanical characteristics of concrete." Concrete Structures 22 (2021): 1–4. http://dx.doi.org/10.32970/cs.2021.1.1.

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Concrete is an inhomogeneous building material. It has a considerable and reliable compressive strength and a relative low tensile strength which can be even exhausted locally under unfortunate conditions. It is quite obvious that the concrete tensile strength was always reprehended as the most unreliable concrete property. A simple relationship between tensile- and compressive strength is introduced. The mechanical background of the relation tensile- to compressive strength in case of ‘normal’ and high strength concretes is elucidated. Mechanical bond, too, relies completely on the tensile strength. In the design of structural concrete members the tension fields are more characteristic than the compression fields. Effective concrete strengths are not successful. Tensile strength can be applied as ‘yield condition’ for the lower bound solution in the theory of plasticity. The paper intends to contribute to the acceptance of the tensile strength as the more fundamental concrete characteristics.
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Liao, Wen-Cheng, Po-Shao Chen, Chung-Wen Hung, and Suyash Kishor Wagh. "An Innovative Test Method for Tensile Strength of Concrete by Applying the Strut-and-Tie Methodology." Materials 13, no. 12 (June 18, 2020): 2776. http://dx.doi.org/10.3390/ma13122776.

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Tensile strength is one of the important mechanical properties of concrete, but it is difficult to measure accurately due to the brittle nature of concrete in tension. The three widely used test methods for measuring the tensile strength of concrete each have their shortcomings: the direct tension test equipment is not easy to set up, particularly for alignment, and there are no standard test specifications; the tensile strengths obtained from the test method of splitting tensile strength (American Society for Testing and Materials, ASTM C496) and that of flexural strength of concrete (ASTM C78) are significantly different from the actual tensile strength owing to mechanisms of methodologies and test setup. The objective of this research is to develop a new concrete tensile strength test method that is easy to conduct and the result is close to the direct tension strength. By applying the strut-and-tie concept and modifying the experimental design of the ASTM C78, a new concrete tensile strength test method is proposed. The test results show that the concrete tensile strength obtained by this proposed method is close to the value obtained from the direct tension test for concrete with compressive strengths from 25 to 55 MPa. It shows that this innovative test method, which is precise and easy to conduct, can be an effective alternative for tensile strength of concrete.
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Saud, Abdullah F., Hakim S. Abdelgader, and Ali S. El-Baden. "Compressive and Tensile Strength of Two-Stage Concrete." Advanced Materials Research 893 (February 2014): 585–92. http://dx.doi.org/10.4028/www.scientific.net/amr.893.585.

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An experimental investigation was conducted to evaluate the compressive, tensile strength and modulus of elasticity of two-stage concrete (TSC) at different water-to-cement ratios. The primary objectives were to measure the elastic modulus, compressive strength and splitting tensile strength of TSC and to determine if there is a quantifiable relationship between compressive and tensile strength. Behavior of TSC in compression has been well documented, but there are little published data on its behavior in tension and modulus of elasticity. This paper presents the experimental results of preplaced, crushed granite aggregate concreted with five different mortar mixture proportions. A total of 48 concrete cylinders were tested in unconfined compression modulus of elasticity and splitting tension at 28 and 90 days. It was found that the modulus of elasticity and splitting tensile strength of two-stage concrete is equivalent or higher than that of conventional concrete at the same compressive strength. Splitting tensile strength can be conservatively estimated using the ACI equation for conventional concrete.
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Li, Rui, Lei Liu, Zhihua Zhang, and Huaming An. "Experimental Study of Brazilian Tensile Strength of Concrete Under Static Loads." E3S Web of Conferences 206 (2020): 01018. http://dx.doi.org/10.1051/e3sconf/202020601018.

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Concrete is one of the most significant materials in modern society. It is widely used in many projects. Thus it is essential to study the strength and the failure patterns of this material. As well known, the compressive strength is much higher than the tensile strength for concrete. Thus, it is easy to fail due to the tensile strength for concrete. Thus, this paper focuses on the study of the tensile strength of the concrete and its failure patterns. Three types of concretes are made for studying the tensile strengths and the failure patterns of the concretes. Then the Brazilian tensile strength test method is employed in this study. The mythology of calculating tensile strength by the Brazilian tensile strength test method is introduced. Many discs are made for the tests. The Rock mechanics testing machine is used to excavate pressure on the top and bottom of the disc. It is concluded that the failure of the disc is along the vertical diameter between the top and bottom plates contacting the dis. The tensile failure is not obviously influenced by the ratios of the materials while the tensile strength is significantly influenced by the ratios of the concrete. The damage index of concrete is also proposed to describe the capabilities of resisting failure.
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Khasanov, Bakhridin, Ruzimurat Choriev, Zukhra Ismailova, Guzal Eshchanova, and Timur Mirzaev. "Study of the strength properties of modified concrete in tension." E3S Web of Conferences 365 (2023): 02004. http://dx.doi.org/10.1051/e3sconf/202336502004.

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The resistance of concrete to axial tension is much less than the resistance to compression and is largely determined by the adhesion of its components. The low tensile strength of ordinary concrete is explained by the heterogeneity of its structure and the discontinuity of concrete, which contributes to the development of stress concentration, especially under the action of tensile forces. To increase the tensile strength of concrete, it is necessary to eliminate, first of all, the heterogeneity of the structure of concrete - one of the main reasons for the large dispersion of the results of mechanical tests of this material, which affects the experimental determination of compressive strength. A significant difference between the compressive strength for ordinary concrete indicates a rather large spread of such values. This scatter is explained by the different influence of factors on tension and compression. For example, for ordinary concretes, it was found that with an increase in W/C , the tensile strength decreases, but to a lesser extent than the compressive strength. With an increase in the grade of concrete, the tensile strength increases. High-strength concretes, as a rule, prepared on concrete mixes with low W/C and on clean conditioned aggregates in the form of crushed stone and sand, have an increased density, therefore, they have less variation in strength readings both in compression and at stretching [1-4].
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Makrides-Saravanos, Elli, and T. Rezansoff. "The effect of a chloride-based accelerating admixture on the tensile strength of concrete." Canadian Journal of Civil Engineering 12, no. 3 (September 1, 1985): 673–84. http://dx.doi.org/10.1139/l85-074.

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Compression and tension tests were performed on specimens made from high-early-strength concrete, where the strength acceleration was achieved by using a chloride-based accelerating admixture. Comparison with specimens made from concrete without the admixture showed that the concrete with the admixture was significantly weaker in tension for equal compressive strength.Curing times ranged from 3 days to 3 or 4 months while compressive strengths ranged from 16 to 37 MPa depending on the batch and the age at testing. Three types of tension tests, the standard split cylinder test, the standard modulus of rupture test, and a pull-out test were used in the study.Current design equations that relate tensile strength of concrete to the measured compressive strength may overestimate the actual tensile strength of high-early-strength concrete where acceleration is achieved through the addition of an admixture. These equations are found in provisions for anchorage, development, and splicing of reinforcement, shear and torsion strength, and the prediction of service load deflections. Key words: concrete, accelerated strength, tensile strength, admixtures, curing, splitting tensile strength, modulus of rupture, strength correlations.
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He, Xi Xi, and Ping Fang. "Influence of Concrete Strength Grade and Age on Three Tensile Strengths." Advanced Materials Research 450-451 (January 2012): 179–86. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.179.

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Uniaxial tensile strength is one of the important strength parameters of concrete. In this study, two test methods were applied to determine direct tensile strength, splitting tensile strength and flexural strength of fly ash concrete specimens with the same cross section and different strength grades. Relationship among the uniaxial tensile, splitting tensile and flexural strength of concrete were researched. Furthermore, the influence of concrete strength and age to the three tensile strengths were specifically analyzed in the paper.
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Vodička, Jan, Vladimír Křístek, and Václav Ráček. "Strength Classes of Concrete versus Strength Classes of Fibre Concrete." Solid State Phenomena 249 (April 2016): 112–18. http://dx.doi.org/10.4028/www.scientific.net/ssp.249.112.

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Basic characteristics of each produced concrete and fibre reinforced concrete are characterized by the compression strength recorded by the standard sets of tests performed on cylinders and cubes. In addition, for the fibre reinforced concrete, the characteristic tensile strength at formation of microcracks and cracks of standard widths is required. Proofs of the referred characteristic tensile strength should be carried out also by the destructive tests on standard specimens including the methodology provided for their implementation.The rapid development of fibre reinforced concrete, accelerated by manufacturers of fibres and their interest to apply the fibre reinforced concrete in structural practice from where the beneficial effects of the tensile strength can be obtained, resulted in conclusion that there is currently no uniform methodology for evaluation of the tensile strength. Tensile strength studies are performed, for example, according to National standardization Committees and research institutes.At present, the two very different methodologies can be applied to test tensile characteristics of fibre reinforced concrete - MODEL CODE and the Czech national standard – ČSN P 73 2452. The results of the destructive tests, obtained in accordance with the mentioned methodologies are so different that the same strength class for the tested fibre reinforced concrete is not possible to be defined.The paper proves the diversity of methodologies to perform destructive testing, by which it is possible to obtain the tensile characteristics of fibre reinforced concrete needed to define the same strength class. Procedures for evaluation of tensile characteristics from results of destructive tests are also assessed. Significance of the obtained strengths from the point of view of objectivity for the practical application of the fibre concrete in the load-carrying structures are discussed.
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Blazy, Julia, Łukasz Drobiec, and Paweł Wolka. "Flexural Tensile Strength of Concrete with Synthetic Fibers." Materials 14, no. 16 (August 7, 2021): 4428. http://dx.doi.org/10.3390/ma14164428.

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Fiber reinforcement is currently most often used in floors, railway sleepers, prefabricated structural elements such as slabs, beams and tanks, and in small architecture elements. Designing elements or structures made of fiber-reinforced concrete requires knowledge of its basic mechanical parameters. In the case of concretes with metallic fibers, the literature can find many tests and standard guidelines regarding compressive, flexural, tensile strength and fracture energy. The properties of concretes with non-metallic fibers are slightly less recognized, especially concretes with new types of polymer fibers. Additionally, the lack of standardized methods of testing concrete with polymer fibers make their application much more difficult. In the article, the possibility of using the EN 14651 standard to assess the flexural tensile strength of concrete with the addition of 2.0 and 3.0 kg/m3 of synthetic fibers with different geometry and form was presented. There was a 5.5–13.5% increase in the flexural tensile strength depending on the mixture type. Moreover, in the case of fiber-reinforced concretes, the ductility was enhanced and the samples were characterized by significant residual flexural tensile strengths. Additionally, from the workability tests it was concluded that after the incorporation of fibers, the consistency class decreased by one, two or three. Nevertheless, the compressive strengths of concrete with and without fibers were very similar to each other, and varied from 58.05 to 61.31 MPa. Moreover, it was concluded that results obtained from three-point bending tests significantly differed from empirical formulas for the calculation of the flexural tensile strength of fiber-reinforced concretes with dispersed steel fibers present in the literature. As a result, the new formula determined by the authors was proposed for concrete with polymer fibers with a nominal fiber content ≤1.0% and slenderness of up to 200. It must be mentioned that the formula gave a very good agreement with studies presented in different literature positions. In addition, an attempt was made to evaluate the strengths of tested mixes in accordance with the Model Code 2010. However, it occurred that the proposed fiber-reinforced concrete mixtures would not be able to replace traditional reinforcement in a form of steel bars. Furthermore, in uniaxial tensile tests, it was not possible to determine the σ–w graphs, and received results for maximum tensile strength did not show the clear influence of fibers incorporation on concrete. Then, the fracture energy enhancement (from about 16 to 22 times) and dependencies: crack mouth opening displacement–deflection; crack mouth opening displacement–crack tip opening displacement; and crack tip opening displacement–deflection were analyzed. Finally, the results from flexural tensile tests were compared with measurements of the surface displacement field obtained through the Digital Image Correlation technique. It was concluded that this technique can be successfully used to determine the crack mouth and crack tip opening displacements with very high accuracy.
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Dissertations / Theses on the topic "Concrete tensile strength"

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Fields, Kelvin L. "Tension stiffening response of high-strength reinforced concrete tensile members." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0002/MQ35492.pdf.

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Mahjoub-Moghaddas, Hamid. "Tensile and shear impact strength of concrete and fibre reinforced concrete." Thesis, Cardiff University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261439.

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Zheng, Wei, and 鄭偉. "Shock vibration resistance and direct tensile strength of concrete." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242753.

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Zheng, Wei. "Shock vibration resistance and direct tensile strength of concrete." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23273124.

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Srinivasan, Geetha. "Evaluation of indirect tensile strength to identify asphalt concrete rutting potential." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3477.

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Thesis (M.S.)--West Virginia University, 2004.
Title from document title page. Document formatted into pages; contains vii, 65 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 52-53).
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JUNIOR, JOAQUIM NUNES MARTINS. "TENSILE STRENGTH OF A CONCRETE ANCHORING SUBJECTED TO IMPACT LOAD." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8724@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
Este trabalho tem como objetivo estudar a resistência de um sistema de ancoragem composto de pinos com cabeça embutidos no concreto, quando submetidos a cargas de impacto. A variável adotada foi a taxa de carregamento cujos valores mínimo e máximo foram 0,015 kN/s (estático) e 54.885 kN/s, respectivamente. O sistema de ancoragem foi projetado de forma que a ruptura fosse governada pelo arrancamento do cone de ruptura. Foram ensaiados onze blocos de concreto com um pino embutido no concreto, sujeitos a diferentes taxas de aplicação de carga. Foram também ensaiados quinze corpos-de-prova de concreto à compressão diametral e nove pinos à tração, também sujeitos a diferentes taxas de aplicação de carga. O objetivo desses ensaios foi verificar a influência da taxa de carregamento sobre as resistências dos materiais - concreto e aço - que participam do sistema de ancoragem. Os resultados mostraram que a área da superfície e a inclinação do cone de ruptura não sofrem grandes alterações. A carga de ruptura do cone de concreto cresce com a taxa de carregamento, e que esse crescimento pode ser descrito por uma função logarítmica. O mesmo foi observado para a resistência à tração do concreto por compressão diametral e para os pinos.
This work investigates the strength of a concrete anchor system constituted of headed studs embedded in concrete subjected to impact tension load. The main variable was the loading rate which varied from a minimum of 0,015 kN/s (static) to a maximum of 54885 kN/s. The anchor system was designed so that the failure was governed by concrete cone breakout. Eleven concrete blocks with a single headed stud were tested under different loading rates. In addition, fifteen concrete cylinders subjected to compression along a diameter (split cylinder test) and nine headed studs subjected to tension were tested under different loading rates in order to investigate the effects of the loading rate on the strength of concrete and steel separately. The results showed that the area and the angle of the concrete cone were not affected by the loading rate. The failure load of the concrete cone increases as the loading rate increases and this phenomenon can be described by a logarithmic function. The concrete split tensile strength and the steel tensile strength also increase as the loading rate increases.
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Mahawish, Ali Hassan. "Axisymmetric compression testing of concrete by nitrogen." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316326.

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OLIVEIRA, WALTER EDGLEY DE. "EXPERIMENTAL STUDY ON THE TENSILE STRENGTH OF ANCHORAGE PLATES EMBEDDED IN CONCRETE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4239@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
ELETROBRAS TERMONUCLEAR S.A - ELETRONUCLEAR
Placas de ancoragem embutidas em concreto são empregadas, geralmente, com a finalidade de permitir a fixação de elementos para a introdução de cargas concentradas nas estruturas de concreto, bem como viabilizar as ligações estruturais entre componentes pré-fabricados. As placas são ancoradas no concreto através de pinos soldados a elas. Estas placas são bastante empregadas em estruturas de usinas nucleares onde um grande número de equipamentos e tubulações são apoiados na estrutura de concreto. A pesquisa é de natureza experimental e tem como objetivo investigar a redução da resistência à tração de placas de ancoragem com grupo de chumbadores, placas instaladas com pequena distância dos bordos do elemento de concreto, e também de duas placas adjacentes, devido a interferência de seus cones de ruptura. A eficiência de uma armadura de suspensão (que transmite a carga além do cone de ruptura), também é verificada. Os resultados experimentais sugerem uma notável redução da resistência à tração para placas com grupo de chumbadores, e que o uso da armadura de suspensão para placa instalada nas proximidades do bordo do elemento de concreto não é muito eficiente. A armadura de suspensão apresentou um bom rendimento quando foi empregada em placas com grupo de chumbadores. Os resultados teóricos obtidos através de equações desenvolvidas para estimativa da carga de ruptura, apresentaram, de maneira geral, uma boa aproximação quando comparados com os resultados experimentais.
Anchorage plates embedded in concrete are used with the purpose of allowing the fixation of elements for the introduction of concentrated loads into concrete structures, as well as to make possible the structural connections between prefabricated components. The plates are anchored in the concrete through studs welded to them. These plates are used in structures of nuclear power stations where a great number of equipments and pipings are fixed in the concrete structure. The research is of experimental nature and its objective is to investigate the reduction of the tensile strength of multiple studs group, anchorage plates located close to a free edge, and also of two adjacent plates, due to interference of failure concrete cones. The efficiency of an additional reinforcement (that transfers the load beyond the concrete cone), is also addressed. The experimental results suggest a significant reduction of the tensile strength for plates with studs group, and that the use of the additional reinforcement for anchorage plates located close to a free edge is not too efficient. The additional reinforcement presented a good efficiency when it was used in plates with studs group. The theoretical results obtained from equations developed to estimate the concrete failure load show, in a general way, a good agreement with the experimental results.
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Azizipesteh, Baglo Hamid Reza. "Effect of various mix parameters on the true tensile strength of concrete." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12560.

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The primary aim of this research was to develop a method for determining the true uniaxial tensile strength of concrete by conducting a series of cylinder splitting, modulus of rupture (MOR) and cylinder/cube compression tests. The main objectives were: • Critically reviewing previous published research in order to identify gaps in current knowledge and understanding, including theoretical and methodological contributions to the true uniaxial tensile strength of concrete. In order to maintain consistency and increase the reliability of the proposed methods, it is essential to review the literature to provide additional data points in order to add additional depth, breathe and rigor to Senussi's investigation (2004). • The design of self compacting concrete (SCC), normal strength concrete (NSC) and high strength concrete (HSC) mixes and undertaking lab-based experimental works for mixing, casting, curing and testing of specimens in order to establish new empirical evidence and data. • Analysing the data, presenting the results, and investigating the application of validity methods as stated by Lin and Raoof (1999) and Senussi (2004). • To draw conclusions including comparison with previous research and literature, including the proposal of new correction factors and recommendations for future research. 29 batches of NSC, 137 batches of HSC, 44 batches of fly ash SCC and 47 batches of GGBS SCC were cast and their hardened and fresh properties were measured. Hardened properties measured included: cylinder splitting strength, MOR, cylinder compressive strength and cube compressive strength. A variety of rheological tests were also applied to characterise the fresh properties of the SCC mixes, including: slump flow, T50, L-box, V-funnel, J-ring and sieve stability. Cylinders were also visually checked after splitting for segregation. The tensile strength of concrete has traditionally been expressed in terms of its compressive strength (e.g. ft = c x c f ). Based on this premise, extensive laboratory testing was conducted to evaluate the tensile strength of the concretes, including the direct tension test and the indirect cylinder splitting and MOR tests. These tests however, do not provide sufficiently accurate results for the true uniaxial tensile strength, due to the results being based upon different test methods. This shortcoming has been overcome by recently developed methods reported by Lin and Raoof (1999) and Senussi (2004) who proposed simple correction factors for the application to the cylinder splitting and MOR test results, with the final outcome providing practically reasonable estimates of the true uniaxial tensile strength of concrete, covering a wide range of concrete compressive strengths 12.57 ≤ fc ≤ 93.82 MPa, as well as a wide range of aggregate types. The current investigation has covered a wide range of ages at testing, from 3 to 91 days. Test data from other sources has also been applied for ages up to 365 days, with the test results reported relating to a variety of mix designs. NSC, SCC and HSC data from the current investigation has shown an encouraging correlation with the previously reported results, hence providing additional wider and deeper empirical evidence for the validity of the recommended correction factors. The results have also demonstrated that the type (size, texture and strength) of aggregate has a negligible effect on the recommended correction factors. The concrete age at testing was demonstrated to have a potentially significant effect on the recommended correction factors. Altering the cement type can also have a significant effect on the hardened properties measured and demonstrated practically noticeable variations on the recommended correction factors. The correction factors proved to be valid regarding the effects of incorporating various blended cements in the HSC and SCC. The NSC, HSC and SCC showed an encouraging correlation with previously reported results, providing additional support, depth, breadth and rigor for the validity of the correction factors recommended.
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Li, Guang. "The effect of moisture content on the tensile strength properties of concrete." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0004782.

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Books on the topic "Concrete tensile strength"

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Harrington, M. The torque test: A proposed new test to establish the tensile strength of concrete. [London]: Queen Mary and Westfield College, 1998.

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Mirvish, Anthony. The effects of bi-axial tension on the behavior of lap splices in high-strength reinforced concrete shell elements. Ottawa: National Library of Canada, 1996.

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Keller, Thomas. Use of fibre reinforced polymers in bridge construction. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2003. http://dx.doi.org/10.2749/sed007.

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<p>The aim of the present Structural Engineering Document, a state-of-the-art report, is to review the progress made worldwide in the use of fibre rein­forced polymers as structural components in bridges until the end of the year 2000.<p> Due to their advantageous material properties such as high specific strength, a large tolerance for frost and de-icing salts and, furthermore, short installation times with minimum traffic interference, fibre reinforced polymers have matured to become valuable alternative building materials for bridge structures. Today, fibre reinforced polymers are manufactured industrially to semi-finished products and ccimplete structural components, which can be easily and quickly installed or erected on site.<p> Examples of semi-finished products and structural components available are flexible tension elements, profiles stiff in bending and sandwich panels. As tension elements, especially for the purpose of strengthening, strips and sheets are available, as weil as reinforcing bars for concrete reinforcement and prestressing members for internal prestressing or external use. Profiles are available for beams and columns, and sandwich constructions especially for bridge decks. During the manufacture of the structural components fibre-optic sensors for continuous monitoring can be integrated in the materials. Adhesives are being used more and more for joining com­ponents.<p> Fibre reinforced polymers have been used in bridge construction since the mid-1980s, mostly for the strengthening of existing structures, and increas­ingly since the mid-1990s as pilot projects for new structures. In the case of new structures, three basic types of applications can be distinguished: concrete reinforcement, new hybrid structures in combination with traditional construction materials, and all-composite applications, in which the new materials are used exclusively.<p> This Structural Engineering Document also includes application and research recommendations with particular reference to Switzerland.<p> This book is aimed at both students and practising engineers, working in the field of fibre reinforced polymers, bridge design, construction, repair and strengthening.
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Book chapters on the topic "Concrete tensile strength"

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Kim, D. J., K. Wille, A. E. Naaman, and S. El-Tawil. "Strength Dependent Tensile Behavior of Strain Hardening Fiber Reinforced Concrete." In High Performance Fiber Reinforced Cement Composites 6, 3–10. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2436-5_1.

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Weerheijm, J. "Axial Dynamic Tensile Strength of Concrete under Static Lateral Compression." In Fracture and Damage Mechanics V, 991–94. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-413-8.991.

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Nanda, Anil Kumar, and Jaspal Singh. "Relationship Between Compressive Strength and Split Tensile Strength for Sustainable Concrete—A Case Study." In Lecture Notes in Civil Engineering, 733–40. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9554-7_65.

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Le, An Hoang. "Evaluation of the Splitting Tensile Strength of Ultra-High Performance Concrete." In RILEM Bookseries, 1149–60. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58482-5_101.

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Mirza, Olivia, Brendan Kirkland, Kurt Bogart, and Todd Clarke. "Post-Fire Flexural Tensile Strength of Macro Synthetic Fibre Reinforced Concrete." In RILEM Bookseries, 140–50. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58482-5_13.

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Gupta, Abhishek Kumar, Km Shalini Kumari, and Sawan Kumar Gupta. "Comparative Analysis of Tensile Strength for Scrap Electrical Wire-Reinforced Concrete." In Sustainable Technology and Advanced Computing in Electrical Engineering, 11–22. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4364-5_2.

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Varadharajan, S., S. V. Kirthanashri, Mohammad Shahban, Bishnu Kant Shukla, and Gaurav Bharti. "ANN Model for Prediction of Compressive and Tensile Strength of Bacterial Concrete." In Lecture Notes in Civil Engineering, 333–39. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4739-1_31.

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Le, An Hoang. "An Experimental Evaluation of Direct Tensile Strength for Ultra-high Performance Concrete." In RILEM Bookseries, 958–64. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-83719-8_82.

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Campos, Richard, Matias M. Mendez Larrain, Musharraf Zaman, and Victor Pozadas. "Relationships Between Compressive and Splitting Tensile Strengths of Cast and Core High-Strength Concrete Cylinders." In Smart and Green Solutions for Civil Infrastructures Incorporating Geological and Geotechnical Aspects, 58–69. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79650-1_5.

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Neunzig, Christian, Thomas Heiermann, and Michael Raupach. "Determination of the Uniaxial Tensile Strength of Concrete with a Modified Test Setup." In Strain-Hardening Cement-Based Composites, 316–23. Dordrecht: Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1194-2_37.

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Conference papers on the topic "Concrete tensile strength"

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"Prediction of Dynamic Tensile Strength." In SP-175: Concrete and Blast Effects. American Concrete Institute, 1998. http://dx.doi.org/10.14359/5924.

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Renić, Tvrtko, and Tomislav Kišiček. "Direct tensile strength test of concrete." In 4th Symposium on Doctoral Studies in Civil Engineering. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/phdsym.2018.09.

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Boyd, Andrew, Andrew Komar, Gaowei Xu, and Andrea Leone. "Tensile strength for evaluating deterioration in concrete." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.915.

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Li, N., and A. A. A. Molenaar. "Prediction of Tensile Strength of Asphalt Concrete." In Second International Conference on Sustainable Construction Materials: Design, Performance, and Application. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412671.0024.

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"Tensile Strength of Continuous Fiber Bar Under High Temperature." In SP-138: Fiber-Reinforced-Plastic Reinforcement for Concrete Structures - International Symposium. American Concrete Institute, 1993. http://dx.doi.org/10.14359/3954.

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O, J., and R. J. "Direct Tensile Strength in Joint of Roller Compacted Concrete Dams." In Fifth International Conference on Advances in Civil, Structural and Environmental Engineering - ACSEE 2017. Institute of Research Engineers and Doctors, 2017. http://dx.doi.org/10.15224/978-1-63248-122-1-11.

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Oikava, Fernanda F., João de Almeida M. Filho, and Gleicyanne O. de S. Portela. "STEEL FIBERS ADDITION EFFECT OF ON TENSILE STRENGTH OF CONCRETE." In Brazilian Conference on Composite Materials. Pontifícia Universidade Católica do Rio de Janeiro, 2018. http://dx.doi.org/10.21452/bccm4.2018.02.25.

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"Strength Degradation of AR-Glass Filaments Due to Cyclic Tensile Loading." In SP-251: Design & Applications of Textile-Reinforced Concrete. American Concrete Institute, 2008. http://dx.doi.org/10.14359/20151.

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"Tensile Postcrack Behavior of Steel Fiber Reinforced Ultra-High Strength Concrete." In SP-159: International Workshop on High Performance Concrete. American Concrete Institute, 1996. http://dx.doi.org/10.14359/1384.

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Makunza, John K., and G. Senthil Kumaran. "An Experimental Investigation on Suitability of Using Sisal Fibers in Reinforced Concrete Composites." In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.24.

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Fiber reinforcement is widely used in construction engineering to improve the mechanical properties of concrete such as compressive and tensile strengths. Concrete is strong in compression but weak in tension and is a brittle material. In the construction industry, strength, durability and cost are among the major factors for selecting the suitable construction materials. During this investigation, the mechanical properties of sisal fibers reinforced concrete (SFRC) were assessed namely, flexural strength, tensile strength ad interfacial bond strength. The said properties were assessed in two types of reinforcement namely, randomly oriented sisal fibers and parallel oriented sisal fibers reinforcement. In both cases the sisal fibers were varied in volume fractions so as to establish the optimum value. The mechanical properties of flexural and tensile strengths were found to increase considerably with increasing fiber volume fractions until an optimum volume fraction is reached, thereafter, the strengths were found to decrease continuously. The prominent increment of 32.4% in flexural strength at fiber volume fraction of 2.0% parallel reinforced fiber concrete composite was observed. There was very small increment on both flexural and tensile strength for randomly oriented chopped sisal fibers reinforced concrete (SFRC). The Interfacial bond strength was found to be 0.12 N/mm2 and was observed to be prominent for chopped sisal fibers reinforced concrete specimens tested for flexural strength. During failure, fiber pull-out was observed and the composite was observed to behave in a ductile manner whereby the fibers were able to carry more load while full fracture had occurred on the specimen. The water absorption capacity of the SFRC was found to increase with increasing sisal fiber volume fraction.
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Reports on the topic "Concrete tensile strength"

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Moser, Robert, Preet Singh, Lawrence Kahn, Kimberly Kurtis, David González Niño, and Zackery McClelland. Crevice corrosion and environmentally assisted cracking of high-strength duplex stainless steels in simulated concrete pore solutions. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41620.

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This paper presents a study of crevice corrosion and environmentally assisted cracking (EAC) mechanisms in UNS S32205 and S32304 which were cold drawn to tensile strengths of approximately 1300 MPa. The study utilized a combination of electrochemical methods and slow strain rate testing to evaluate EAC susceptibility. UNS S32205 was not susceptible to crevice corrosion in stranded geometries at Cl⁻ concentrations up to 1.0 M in alkaline and carbonated simulated concrete pore solutions. UNS S32304 did exhibit a reduction in corrosion resistance when tested in a stranded geometry. UNS S32205 and S32304 were not susceptible to stress corrosion cracking at Cl⁻ concentrations up to 0.5 M in alkaline and carbonated solutions but were susceptible to hydrogen embrittlement with cathodic overprotection.
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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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EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES AND OPTIMIZATION OF CHOPPED BASALT FIBER REINFORCED CONCRETE. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.251.

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This paper investigated the influence of CBF damage mode of matrix concrete and the strength of matrix concrete under different stress states. The length of basalt fiber is 6 mm. Three basic mechanical properties tests were conducted with five fiber volume admixtures of 0.00%, 0.05%, 0.10%, 0.15% and 0.20% used as the variables. A total of 90 specimens of different sizes were prepared to study the variation rules of compressive strength, splitting tensile strength and flexural strength at different ages of 7d and 28d, the strengthening mechanism of the reinforcing effect of CBF was also analyzed, and the optimal volume fraction of CBFs was obtained. The results can be concluded that (1) the disordered distribution and uniform dispersion of CBF improve the damage morphology of concrete matrix, reflecting a good effect in the enhancing and crack-resisting; (2)The compressive strength and flexural strength increase first and then decrease with increasing of the fiber incorporation amount, and the BFRC reach their strength peak points when the fiber volume ratio is equal to 0.10%; (3) The dispersion of tensile strengths are relatively high, but they still show a trend of slow increasing trend.
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EXPERIMENTAL STUDY ON WELDING RESIDUAL STRESS OF TWO-WAY STIFFENED STEEL PLATES. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.531.

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The immersed tunnel of Shenzhen-Zhongshan Link Project adopts the steel shell-concrete (SSC) composite structure, in which the two-way stiffened steel plate is applied as the surface of steel shell. Since the steel plate stiffened in two-way, the residual stresses could be induced in the complicated welds at the intersections of plates and stiffeners. Therefore, residual stress experimental study on two full-scale specimen of the two-way stiffened steel plate, based on the steel shell details of ShenzhenZhongshan Link Project, was carried out to investigate the distribution of residual stresses by sectioning method. Results show that tensile residual stress could be measured near the welded stiffeners with a maximum of about 0.66 times the yield strength. While the compressive residual stress is between the stiffeners, with a maximum of about 0.35 times the yield strength. Furthermore, in the direction of welded T-shape stiffeners, the difference values between residual stresses of inner and outer surfaces on bottom plates is smaller than that in the direction of welded plate stiffeners, with maximum values of 0.09 times and 0.22 times the yield strength, respectively.
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CTA #34. Web Shear Strength of Prestressed Concrete Members. Precast/Prestressed Concrete Institute, 1987. http://dx.doi.org/10.15554/pci.cta-34.

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Presents an analytical method and design procedure for determining the web shear strength of prestressed concrete members, based on calculating the applied shear which causes a principal tension of 4J at the centroid of the member. Provides design examples and experimental verification.
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