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Artykuły w czasopismach na temat "Tensile Strength and Compressive Strength"

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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 st
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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 (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 mod
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Eid, Rami, Avraham N. Dancygier, and Ghali Jaber. "Mechanical Properties of Low-Performance Concrete (LPC) and Shear Capacity of Old Unreinforced LPC Squat Walls." Materials 14, no. 23 (2021): 7310. http://dx.doi.org/10.3390/ma14237310.

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Low-performance concrete (LPC) is characterized by its low strength and commonly by the presence of large aggregates. This type of concrete was used for construction of load carrying, commonly unreinforced walls in old buildings. The resistance of these buildings with LPC squat walls (of relatively low height-to-length ratio), to in plane horizontal loads, was experimentally investigated in this study. The low compressive strength of these walls, well below that of standard concrete, requires estimation of the relation between the actual LPC compressive strength and its tensile strength, and i
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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 prepla
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Yu, Ziruo, Zhiguang Li, Yuran Jiang, and Yue Wang. "Mechanical Behavior of Reactive Powder Concrete Subjected to Biaxial Loading." Advances in Civil Engineering 2022 (July 1, 2022): 1–11. http://dx.doi.org/10.1155/2022/9246692.

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To investigate the biaxial mechanical characteristics of reactive powder concrete (RPC), RPC plate specimens and bone-shaped specimens were tested under compression-compression and compression-tension loadings, respectively. The strengths and strains of the specimens were recorded, and the crack patterns and failure modes in various stress states were examined. Based on the test data, the characteristics of biaxial strength were analyzed, and a biaxial failure criterion was established. The characteristics of major stress-strain curves and failure modes in different biaxial stress states were
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Gunasekaran, M., and T. Palanisamy. "Effect of fly ash and bagasse ash on the mechanical properties of light weight concrete." Cement Wapno Beton 27, no. 2 (2022): 72–101. http://dx.doi.org/10.32047/cwb.2022.27.2.1.

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Light weight concrete is an important part in the concrete technology. The use of mineral additives in light-weight concrete, to replace fine aggregate with fly ash and bagasse ash, helps to reduce the cement content. The present investigation aims to meet the performance of light weight concrete, by adding fly ash and bagasse ash, as fine aggregate replacement additives. The strength properties such as cube compressive strength, cylinder compressive strength and split tensile strength were investigated after different ages, to find the optimum addition of mineral additives such as fly ash and
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Tu, Nhung Hong, and Cong Thanh Nguyen. "ASSESSMENT OF TENSILE STRENGTH OF CONCRETE IN ACCORDANCE WITH ITS COMPRESSIVE STRENGTH." Scientific Journal of Tra Vinh University 1, no. 41 (2020): 86–96. http://dx.doi.org/10.35382/18594816.1.41.2020.647.

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Concrete is the primary material used in construction. The importance of concrete is shown through its strength criteria which are indispensable in all structural designs of the engineers. This article is to determine the tensile strength of concrete according to the compressive strength through an experimental study for thestrength grade B15, B20, B25 of concrete. In this study, tensile and compressive strength of concrete were determined by tensile test and compression test on the same sample. The experimental results show that the tensile strength of concrete is much smaller than its compre
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Wang, Hao, Xiang-Yu Zhong, He Jia, et al. "Study on the Transverse Properties of T800-Grade Unidirectional Carbon Fiber-Reinforced Polymers." Materials 18, no. 4 (2025): 816. https://doi.org/10.3390/ma18040816.

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This paper focuses on the transverse tensile and compressive mechanical properties of T800-grade unidirectional (UD) carbon fiber-reinforced polymers (CFRPs). Firstly, transverse tensile and compressive tests were conducted on UD composite laminates, yielding corresponding stress–strain curves. The results indicated that, for tension, the transverse tensile modulus, strength, and failure strain were 8.7 GPa, 64 MPa, and 0.74%, respectively, whereas for compression, these values were 8.4 GPa, 197.1 MPa, and 3.43%, respectively. The experimental curves indicated brittle failure under tensile loa
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Yan, Chang Wang, Jin Qing Jia, Ju Zhang, and Rui Jiang. "Compressive Strength and Splitting Tensile Strength of Polyvinyl Alcohol Fiber Reinforced Ultra High Strength Concrete (PFRC)." Advanced Materials Research 150-151 (October 2010): 996–99. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.996.

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The marked brittleness with low tensile strength and strain capacities of ultra high strength concrete (UHSC) with compressive strength of 100 MPa can be overcome by the addition of polyvinyl alcohol (PVA) fibers. The compressive strength and splitting tensile strength of ultra high strength concrete containing PVA fibers are investigated this paper. The PVA fibers were added at the volume fractions of 0%, 0.17%, 0.25%, 0.34% and 0.5%. The compressive strength of the PVA fiber reinforced ultra high strength concrete (PFRC) reached a maximum at 0.5% volume fraction, being an 8.2% improvement ov
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Ramírez, Wladimir, Margarita Mayacela, Luis Contreras, Alejandra Shambi, Francisco Ramírez, and Jonatan Chacón. "Mechanical Properties of Permeable Concrete Reinforced with Polypropylene Fibers for Different Water–Cement Ratios." Buildings 14, no. 9 (2024): 2935. http://dx.doi.org/10.3390/buildings14092935.

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Permeable concrete is a material that allows water filtration, reduces surface runoff, and maintains the natural water cycle. Previous studies have shown that its mechanical properties, particularly its compressive and flexural tensile strengths, are generally lower than those of conventional concrete, with significant variability observed among similar tests. This study investigates the compressive strength, flexural strength, and permeability of polypropylene fiber-reinforced permeable concrete specimens at two water–cement ratios (0.30 and 0.35). The mix design was conducted using the ACI 5
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Rozprawy doktorskie na temat "Tensile Strength and Compressive Strength"

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Annam, Ramyasree. "Study of Mechanical Properties of PVA Fiber-Reinforced Concrete With Raman Spectroscopic Analysis." TopSCHOLAR®, 2015. http://digitalcommons.wku.edu/theses/1460.

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The brittleness of concrete has always been a safety and economic issue of great concern. The low tensile strength of concrete is the cause of its intrinsic brittle nature. This is critical considering the amount of concrete used for the construction of highways, buildings, and other facilities. The mechanical properties of concrete must be improved to provide upgraded construction. Crack resistant and durable concrete has always been a major goal for engineers. Many approaches have been tried to make concrete a better construction material. Fiber reinforcement is an approach which has been sh
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Batista, André Ulisses Dantas [UNESP]. "Avaliação da influência da incorporação de substâncias desinfetantes na resistência à compressão e à tração diametral de dois gessos tipo IV." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/105493.

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Made available in DSpace on 2014-06-11T19:35:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-21Bitstream added on 2014-06-13T19:05:06Z : No. of bitstreams: 1 batista_aud_dr_arafo.pdf: 615250 bytes, checksum: 0ecd726c988be8090372e448348080fd (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O objetivo deste estudo foi analisar a influência da incorporação de três desinfetantes (hipoclorito de sódio a 1%, glutaraldeído alcalino a 2% e digluconato de clorexidina a 2%) em duas diferentes porcentagens de substituição da água da espatulação (50 e 100%) de
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Strömberg, Frida. "Humidity’s effect on strength and stiffness of containerboard materials : A study in how the relative humidity in the ambient air affects the tensile and compression properties in linerboard and fluting mediums." Thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-43474.

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The aim of this thesis was to investigate the difference between containerboard materials strength and stiffness properties in tension and compression, how the mechanisms behind compressive and tensile properties are affected by the relative humidity of the ambient air and how the relative humidity affects the compressive response of the fibre network. These properties are used to predict the lifetime performance of corrugated boxes and to prevent early collapses of the boxes and thereby waste or harm of the transported goods inside. The work also discusses the methods used to evaluate the dif
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Batista, André Ulisses Dantas. "Avaliação da influência da incorporação de substâncias desinfetantes na resistência à compressão e à tração diametral de dois gessos tipo IV /." Araraquara : [s.n.], 2005. http://hdl.handle.net/11449/105493.

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Orientador: João Neudenir Arioli Filho<br>Banca: Sérgio Russi<br>Banca: Sergio Sualdini Nogueira<br>Banca: Cláudia Helena Lovato da Silva<br>Banca: Helena de Freitas Oliveira Paranhos<br>Resumo: O objetivo deste estudo foi analisar a influência da incorporação de três desinfetantes (hipoclorito de sódio a 1%, glutaraldeído alcalino a 2% e digluconato de clorexidina a 2%) em duas diferentes porcentagens de substituição da água da espatulação (50 e 100%) de dois gessos tipo IV, FujiRock EP (M1) e Rock Plus (M2), avaliando-se a resistência à compressão e à tração diametral. Os corpos-de-prova for
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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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Olekambainei, Arip-Kituyan Emmanuel. "The influence of moulding moisture content on the engineering properties of aggregate-lime-natural pozzolan mixes." Diss., Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-06092005-094814.

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Takahashi, Jessica Mie Ferreira Koyama. "Efeito de tempos de simulação do intemperismo natural na deformação permanente dos materiais reembassadores resilientes e na resitencia a tração da sua união com a resina acrilica." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289906.

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Orientador: Marcelo Ferraz Mesquita<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-12T19:45:53Z (GMT). No. of bitstreams: 1 Takahashi_JessicaMieFerreiraKoyama_M.pdf: 3156848 bytes, checksum: e45be536e6455880f4523ac84c0d2894 (MD5) Previous issue date: 2009<br>Resumo: O objetivo neste estudo foi avaliar o efeito de diferentes tempos de envelhecimento acelerado realizado por meio da simulação do intemperismo natural, sobre as propriedades de deformação permanente e resistência à tração da união de dois
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Brown, David Roger. "An assessment of the compaction behaviour of pharmaceutical compacts by means of complementary mechanical tests." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336444.

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Wasserbauer, Jaromír. "Lokální zkoušky mechanických vlastností materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-216510.

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This thesis deals with measurement of hardness and microhardness in relation to structure of homogeneous and heterogeneous materials. In the introduction basic theoretical background is commented, i.e. definitions, terminology, principles of measuring techniques for estimation of hardness, microhardness, tensile strength, compressive strength and bending strength. Follows a brief review of present research results focused on use of described principles in materials engineering. Then the experimental equipment and sample preparation is described. The crucial part of the thesis is summary of ach
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Åkergren, David. "RC Trough Bridges: A Parametric Study using FEM and an Analysis of their Current State." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87260.

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There are approximately 4000 railway bridges in Sweden managed by the Swedish Administration of Transport (Trafikverket), of which a common construction type is the reinforced concrete (RC) trough bridge, which is a structure that consists of a slab carried by two longitudinal main beams which transfer loads towards the supports. A substantial amount of the RC trough bridge population is approaching the end of their service lives which consequently implies that the replacement of some of these bridges can be expected in the near future. Extending their service lives can yield positive effects
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Książki na temat "Tensile Strength and Compressive Strength"

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Carli, Charles G. Tensile and compressive MOE of flakeboards. U.S. Forest Service, 1988.

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C, Pauly Christopher, Pindera M. J. 1951-, and United States. National Aeronautics and Space Administration., eds. Experimental characterization and micromechanical modeling of woven carbon/copper composites. National Aeronautics and Space Administration, 1997.

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Center, Langley Research, ed. Test methods for textile composites. National Aeronautics and Space Administration, Langley Research Center, 1994.

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Center, Lewis Research, ed. Low cost manufacturing approach of high temperature PMC components. National Aeronautics and Space Administration, Lewis Research Center, 1997.

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Center, Lewis Research, and United States. National Aeronautics and Space Administration., eds. Low cost manufacturing approach of high temperature PMC components. National Aeronautics and Space Administration, Lewis Research Center, 1997.

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Association, Portland Cement, ed. Compressive strength of masonry. Portland Cement Association, 1993.

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National Institute of Standards and Technology (U.S.), ed. Tensile strength of an interlocking composite connection. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 2000.

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G, Ifju Peter, and Langley Research Center, eds. Through-the-thickness tensile strength of textile composites. National Aeronautics and Space Administration, Langley Research Center, 1994.

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G, Ifju Peter, and Langley Research Center, eds. Through-the-thickness tensile strength of textile composites. National Aeronautics and Space Administration, Langley Research Center, 1994.

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Balasundaram, Vikram. Effect of moisture on the compressive strength of C.F.R.P. University of Birmingham, 1985.

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Części książek na temat "Tensile Strength and Compressive Strength"

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Behforouz, Babak, Davoud Tavakoli, Behrouz Naderi, and Mohammad Hajmohammadian Baghban. "Sustainable Enhancement of Lightweight Concrete: A Comprehensive Investigation into GGBS and Waste Steel Fiber Incorporation for Improved Strength and Durability." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_68.

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AbstractThis study explores the properties of lightweight concrete incorporating slag and steel fibers. Cubic and cylindrical specimens were created with varying fiber percentages (0%, 1.5%, and 3%) and slag replacements (0%, 10%, 20%, 30%, and 40%). The samples underwent testing for compressive strength at 7, 28, and 90 days, tensile strength at 28 and 90 days, and water absorption at 28 and 90 days. Results indicate an enhancement in both compressive and tensile strength with a 20% slag replacement in all specimens. Additionally, an inverse correlation is observed between overhead percentage
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Najvani, Mohammad Amin D., Daniel Heras Murcia, and Mahmoud Reda Taha. "Evolution of Early-Age Mechanical and Failure Behavior of 3D Printed Polymer Concrete." In Springer Proceedings in Materials. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72955-3_59.

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AbstractThe increasing interest in 3d printing of concrete for infrastructure applications necessitates having a design for this process. Previous research has mostly focused on 3D printable cement-based concrete mixes, with less attention given to 3D printed polymer concrete (PC). PC is a concrete type that uses polymer instead of cement as a binder. It offers improved compressive and tensile strengths, crack resistance and bond strengths, and superior durability than traditional Portland cement concrete, making it an excellent material for 3D printing. This study aims to understand the evolu
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Chen, Yunkai, Peng Deng, and Yao Wang. "Experimental and Analyses on the Deterioration of Mechanical Properties of Transport Bridges Based on Hot and Humid Marine Environment." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-6238-5_3.

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AbstractThe mechanical properties of in-service concrete bridges in the sea are subject to accelerated deterioration due to the harsh environment in which they are located, which poses a serious challenge to bridge transportation work. Therefore, it is necessary to analyse and study the mechanical property evolution of lightweight aggregate concrete in the marine environment and transport engineering design. In order to study the mechanical property degradation law of nano-modified ceramic concrete under the action of dry and wet cycles and temperature, tests were conducted on nano-modified ce
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Deng, Peng, Zhiwei Niu, Kun Yang, Yan Liu, and Xianglong Zhang. "Effect of Water-Binder Ratio, Alkali Mass Fraction and Lightweight Aggregate Size on Mechanical Properties of Alkali-Activated Concrete." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-6238-5_1.

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AbstractAlkali-Activated Ceramsite Concrete (AACC), a novel green building material, is important for the reutilization of industrial waste. Although there has been considerable progress in research on AACC, further investigation is still needed on ceramsite size, early strength, etc. In this paper, 11 groups containing 198 standard cubic specimens were fabricated to investigate the effects of water-binder ratio, alkali mass fraction and ceramsite diameter on compressive strength and splitting tensile strength at different ages. And the slump constant of the mixtures was tested for different w
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Wang, Bo, Huimin Hu, and Jianglong Yao. "Experimental Study on the Effect of Redispersible Latex Powder on Pavement Performance of Road Base." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5814-2_1.

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AbstractThrough unconfined compressive strength test, flexural tensile strength test, freeze-thaw test, dry shrinkage test and SEM, the improvement effect and mechanism of redispersible latex powder on the mechanical properties of recycled cement stabilized macadam were studied. The results show that the flexural and tensile strength of recycled cement stabilized macadam mixture increased and the compressive strength decreased slightly after adding latex powder. With the addition of latex powder, the BDR value of cement stabilized macadam increased, and the frost resistance of the mixture impr
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Liu, Junliang, Guangxiu Fang, Jiaxing Lu, and Han Jin. "Study on the New Preparation Method and Properties of Green Self-Compacting Transparent Concrete." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_11.

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AbstractThrough reading and integrating a large amount of literature, this paper innovatively proposed a new method of making transparent concrete. On this basis, we added fly ash and slag powder to replace cement according to different volume ratios, and developed four new types of green self-compacting transparent concrete with different mix ratios. By testing the compressive strength, tensile strength, elastic modulus and thermal conductivity of these concrete, found that according to (20%, 20%) added fly ash and slag powder cement instead of new green self-dense light transparent concrete
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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. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9554-7_65.

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He, Jingjing, Haodan Lu, Haiting Wang, Wei Hu, Wenbo Wu, and Kunlong Zhao. "Experimental Study on Mechanical Properties of Permeated Crystalline Concrete." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_7.

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AbstractPerformance tests were conducted on concrete with different infiltration crystallization dosages. The influence of the dosage of permeable crystallization on the mechanical properties and durability of concrete is analyzed. The results show that infiltration crystallization has a significant improvement effect on the mechanical properties and durability of concrete. When the infiltration crystallization dosage is 1.2%, the increase in compressive strength, tensile strength, and compressive tensile elastic modulus of concrete reaches its maximum. When the infiltration crystallization do
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He, Jianjun, Guanghui Zheng, Jun Deng, and Zebin Hu. "Experimental Research on Full-Scale Umbrella Shaped Structure." In Novel Technology and Whole-Process Management in Prefabricated Building. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5108-2_59.

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AbstractUmbrella-shape structure (US) were designed and used in the Jixiang service area of expressway, Heyuan Ctiy. To verify the safety of the US, the test of the full-scale US was done. The tested results indicated that the maximum tensile of cantilever steel was 32.96 MPa, which was smaller than the yield strength of steel; the maximum compressive strength of concrete was occurred in root of cantilever concrete beams with 4.98 MPa, which was also smaller than the concrete design strength; the US was in the elasticity stage under 338 kN.
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Faridmehr, Iman, Ghasan Fahim Huseien, Mohammad Hajmohammadian Baghban, and Håvard Lund. "Effect of Discarded Rubber Tire Crumbs and Tile Ceramic Waste Powder on Workability and Strength Properties of Geopolymer Concrete." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_30.

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AbstractCurrently, geopolymers are introduced as sustainable construction materials with high durability performance and lower carbon dioxide emission. This experimental work prepared geopolymer concrete specimens with 30, 40, 50, 60, and 70% of tile ceramic waste powder (TCWPs) as ground blast furnace slag (GBFS) replacement. Then, the natural coarse and fine aggregates, including crushed stone and river sand, were replaced by 10, 20, and 30 vol% of discarded rubber tire crumbs (DRTCs). The effect of TCWPs and DRTCs inclusion on the geopolymer matrix workability, compressive strength, and spl
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Streszczenia konferencji na temat "Tensile Strength and Compressive Strength"

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Ullah, Zeeshan, Muhammad Khurram Rashid, Saima Shafi Ur Rehman, and Maryam Sadia. "The Impact of Silica Fume on the Properties of High-Strength Concrete: Enhancing Strength, Workability, and Durability." In 14th International Civil Engineering Conference. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-c0xt2l.

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Concrete is a fundamental component of many structures and the backbone of the construction industry. While normal-strength concrete is typically used for smaller projects, high-strength, and even ultra-high-strength concrete are increasingly employed in large-scale construction. This type of concrete provides greater structural strength and reduces costs by minimizing the size of structural members compared to normal-strength concrete. High-strength concrete offers additional benefits such as enhanced durability, reduced permeability, and improved resistance to environmental conditions. High-
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Sofyan, Muhammad, Muhammad Aqwam Thariq Arifin, Amry Dasar, and Irma Wirantina Kustanrika. "Effect of Perlite Composition on Compressive and Split Tensile Strength of Fly Ash-Based Geopolymer Concrete." In The 6th International Symposium on Infrastructure Development. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-fl2jxu.

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Geopolymer concrete is an environmentally friendly alternative to cement as it can reduce carbon dioxide gas emissions during the production process. This study uses fly ash, a waste from the combustion of steam power plants, and perlite, a silicate glass rock with high alumina content, as cement replacement materials. Variations of perlite were used in geopolymer concrete mixtures to replace fly ash with percentages of 0%, 10%, 20%, and 30%, with a concentration of 12 M, and a Na2SiO3/NaOH ratio of 2.5 and AA/PM of 0.5. For the treatment of geopolymer concrete using oven curing method at 80°C
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Akram, Waseem, and Majid Ali. "Considering Fiber Reinforced Concrete below Neutral Axis of Beam for Shallow Sections - A Review." In Technology Enabled Civil Infrastructure Engineering & Management Conference. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-dsuqu9.

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The utilization of Fiber Reinforced Concrete (FRC) as a structural material is steadily on the rise. Conventional concrete is characterized by its brittleness, displaying a flexural strength that falls within the range of 10-15% of its compressive strength. Incorporation of fibers into concrete enhances various mechanical properties, including tensile strength, flexural strength, and ductility. An advantageous feature of FRC is its capacity to consider cracked concrete below the neutral axis in the cross-section of a beam to some extent. Important factors influencing the flexural strengths of
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Kulathilaka, U. G. D. U., and N. Somaratna. "Correlation of compressive strength and flexural tensile strength of blended cement concrete." In 3rd SLIIT International Conference on Engineering and Technology. SLIIT, 2024. http://dx.doi.org/10.54389/rssd5288.

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Eurocodes for structural designs have been adopted for Sri Lanka. Hence in Sri Lanka, concrete designs need to be in compliance with the relevant Eurocodes – mainly EN1992 (EC2). In EC2, concrete is categorized by its compressive strength. The other strength parameters are derived from the compressive strength using correlations based on empirical data. A recent trend has been the increasing use of blended cement for concrete in certain applications. But the correlations specified in EC2 are based on data probably related to Ordinary Portland Cement (OPC) concrete. It is important to examine w
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Nguyen, Duy-Liem, Vu-Tu Tran, Thi-Ngoc-Han Vuong, and Tien-Tho Do. "Indirect Tensile Strengths of Crushed-Sand Concretes in Correlation with Its Compressive Strength." In 2020 5th International Conference on Green Technology and Sustainable Development (GTSD). IEEE, 2020. http://dx.doi.org/10.1109/gtsd50082.2020.9303078.

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Pâmmela Caroline Pinazzi da Silva Ribeiro, Michel Melo Oliveira, and Priscilla P. Nelson. "Correlation Between Uniaxial Compressive Strength and Brazilian Tensile Strength Using Different Rock Types." In VII Simpósio Brasileiro de Engenheiros Geotécnicos Jovens. Associação Brasileira de Mecânica dos Solos e Engenharia Geotécnica - ABMS, 2016. http://dx.doi.org/10.20906/cps/gj-13-0005.

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Chularathna, P. K. G. O. T., and N. Somaratna. "Experimental Investigation of Some Strength Parameter Correlation in Blended Cement Concrete." In 3rd SLIIT International Conference on Engineering and Technology. SLIIT, 2024. http://dx.doi.org/10.54389/nvbf2715.

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Sri Lanka has adopted Eurocodes for structural designs. Accordingly, the design of concrete structures should adhere to EN1992 (Eurocode 2). The strength parameters of concrete essential for designs are classified in Eurocode 2 based on the compressive strength of concrete. Most of the other relevant strength parameters are derived using correlations with compressive strength. These correlations based on past empirical test results would typically be valid for concrete made using ordinary Portland cement (OPC). Recently there has been a tendency to use blended cements for concrete. To develop
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Rostami, J., S. Kahraman, X. Yu, et al. "The relation between uniaxial compressive and Brazilian tensile strength." In The 2016 Isrm International Symposium, Eurock 2016. CRC Press, 2016. http://dx.doi.org/10.1201/9781315388502-24.

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Gebauer, Daniel, Steffen Marx, and Gregor Schacht. "Testing Existing Structures – Compressive Strength and Tensile Split- ting Strength of the Lahntal Bridge Limburg." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.1619.

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&lt;p&gt;In 2016, the Lahntal Bridge near Limburg was replaced by a new structure. The existing bridge was deconstructed on a formwork carriage. Before the deconstruction, more than 250 concrete cores and other specimens were taken from the existing structure. The samples are located all over the cross section and the length of the bridge. These specimens are examined for their material prop- erties.&lt;/p&gt;&lt;p&gt;The investigations include the experimental determination of the compressive strength, the tensile splitting strength, the creep behaviour, the chloride ingress, fatigue tests an
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Alkinani, Husam Hasan, Abo Taleb Tuama Al-Hameedi, Shari Dunn-Norman, and Mustafa Adil Al-Alwani. "Statistical Models to Predict Tensile Strength from Unconfined Compressive Strength: Case Study from Southern Iraq." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205589-ms.

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Abstract Tensile strength (To) is an important parameter for creating geomechanical models, especially when tensile failure is the failure of interest. The most common way to estimate the tensile strength is by utilizing Brazilian tests. However, due to material limitation, cost, or time, To is sometimes assumed or estimated empirically. In this work, laboratory test data of To and Unconfined Compressive Strength (UCS) conducted for three zones in southern Iraq (Zubair sandstone, Zubair shale, and Nahr Umr shale) were utilized to create three regression models to estimate To from UCS. The reas
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Raporty organizacyjne na temat "Tensile Strength and Compressive Strength"

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Asvapathanagul, Pitiporn, Simone Galano, Andrea Calabrese, et al. Experimental Investigation of the Self-Healing Potential of Bacteria for Sustainable Concrete Structures. Mineta Transportation Institute, 2023. http://dx.doi.org/10.31979/mti.2023.2239.

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Although concrete is the most widely used building material in the world, its limited tensile strength makes cracking a common phenomenon in concrete elements. This study investigates the potential of autonomous self-healing as an eco-friendly and lowcost method to increase the durability of concrete. The crack-healing potential of different types of high-alkaline-tolerant bacteria or calcite-precipitation microorganisms is investigated. High-alkaline-tolerant bacteria and calcite-precipitation microorganisms were used to retrofit lab-fractured concrete samples. The samples healed with each of
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Calabrese, Andrea, Pitiporn Asvapathanagul, Nisarg N. Patel, et al. Experimental Investigation of the Self-Healing Potential of Bacteria for Sustainable Concrete Structures Phase 2. Mineta Transportation Institute, 2024. http://dx.doi.org/10.31979/mti.2024.2331.

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Concrete is a critical component of so much of the modern construction industry. This material, well known for its versatility, robustness, longevity, and strength, is well-suited for a wide range of structural applications. Nonetheless, the widespread occurrence of cracks in concrete structures, primarily attributed to its limited tensile strength, shrinkage, and overstain, imposes a considerable economic and environmental challenge when it comes to retrofitting these fissures. This study tackles this problem by harnessing bacteria tolerant to high alkaline conditions to enable Microbially In
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Scott, Dylan, Stephanie Wood, Brian Green, and Bradford Songer. Suggested updates for the inclusion of guidance on ultra-high performance concrete to USACE Engineering Manual 1110-2-2000, Standard Practice for Concrete for Civil Works Structures. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/46597.

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Ultra-high performance concrete (UHPC) is a relatively modern class of concrete with properties that include very high compressive strengths, increased tensile strengths, very low permeability, and superior durability compared to conventional, normal-strength concrete. As research of this material continues to progress, its applications under both military and civil works categories expand. However, mixture and structural design guidance using UHPC is limited, particularly in the United States. This special report provides an overview of UHPC as initial guidance for the US Army Corps of Engine
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Groeneveld, Andrew, and C. Crane. Advanced cementitious materials for blast protection. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/46893.

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Advanced cementitious materials, commonly referred to as ultra-high performance concretes (UHPCs), are developing rapidly and show promise for civil infrastructure and protective construction applications. Structures exposed to blasts experience strain rates on the order of 102 s-1 or more. While a great deal of research has been published on the durability and the static properties of UHPC, there is less information on its dynamic properties. The purpose of this report is to (1) compile existing dynamic property data—including compressive strength, tensile strength, elastic modulus, and energ
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Whisler, Daniel, Rafael Gomez Consarnau, and Ryan Coy. Novel Eco-Friendly, Recycled Composites for Improved CA Road Surfaces. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.2046.

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The continued use of structural plastics in consumer products, industry, and transportation represents a potential source for durable, long lasting, and recyclable roadways. Costs to dispose of reinforced plastics can be similar to procuring new asphalt with mechanical performance exceeding that of the traditional road surface. This project examines improved material development times by leveraging advanced computational material models based on validated experimental data. By testing traditional asphalt and select carbon and glass reinforced composites, both new and recycled, it is possible t
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Scott, Dylan, Stephanie Wood, Bradford Songer, et al. Development and characterization of ultra-high-performance concrete for the rehabilitation of navigation lock structures. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47684.

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This report details the history of vertical lock wall repairs and the development and laboratory characterization of an ultra-high-performance concrete (UHPC) using locally sourced materials for improved durability of lock walls subjected to impact and abrasion from navigational vessels. This UHPC, referred to as Lock-Tuf, has been designed for use in a precast environment with ambient curing methods and serves as a material proof-of-concept for future lock wall rehabilitations. Mechanical properties such as unconfined compressive strength, flexural response, tensile capacity, impact resistanc
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Graville, B. A. L51707 Factors Affecting Heat Affected Zone Root Strains in Pipeline Girth Welds and Repairs. Pipeline Research Council International, Inc. (PRCI), 1993. http://dx.doi.org/10.55274/r0010219.

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A previous study on hydrogen cracking in the heat affected zone of pipeline girth welds and repairs found that large strains in the HAZ transverse to the weld played a major role in causing cracking. Large transverse strains were believed to arise from bending of the weld due to the thermal contraction of the weld around the pipe circumference. Large root strains were simulated in the laboratory using a bend test which enabled the effect of material composition and strength to be studied. In the bend test, the specimen deflection at the onset of cracking, indicated by a drop in load, was used
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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.), 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 b
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Garcia Aramendiz, Johan Sebastián, Leonardo Forero Varela, and Jorge Alberto Medina Perilla. Evaluation of the effect of cellulose nanofibers in thermoplastic starch films. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.bbb.9.

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Thermoplastic starches (TPS) are important bio-based, biodegradable polymers used in flexible packaging. However, their mechanical properties, processability, and high hydrophilicity limit their applications. This study examines the effects of chemical modifications and mechanical reinforcements on TPS matrices. Combinations of native and acetylated TPS, reinforced with native (CNF) and acetylated cellulose nanofibers (CNFA) at 1%, 2%, 3%, and 10%, were analyzed. TPS films were prepared with CNF using compression molding, followed by structural, morphological, mechanical, and hygroscopic analy
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Vargas Rojas, Manuela, Felipe Salcedo Galán, and Jorge Medina Perilla. Processability study of thermoplastic starch/poly(Butylene Succinate Adipate) blends in a reactive extrusion. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.bbb.3.

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Growing concerns about ocean contamination from fossil fuel based polymers have created a demand for biodegradable alternatives, particularly for packaging applications. Thermoplastic starch (TPS) is a promising, eco-friendly biopolymer but has poor mechanical properties and high hydrophilicity. To address these issues, this article explores modifying starches through reactive extrusion and blending them with other biodegradable polymers. The study evaluates blends of native or acetylated starch with poly(butylene succinate) adipate (PBSA), using glycerol as a plasticizer and tartaric acid as
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