Relevant bibliographies by topics / PVA fiber reinforced concrete

Academic literature on the topic 'PVA fiber reinforced concrete'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "PVA fiber reinforced concrete"

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Su, Jun, Jian Ping Liu, and Ming Chen. "Experimental Study on Flexural Toughness Characteristic of Polyvinyl Alcohol (PVA) Fiber Reinforced Concrete." Applied Mechanics and Materials 744-746 (March 2015): 1422–26. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1422.

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In order to study the flexural toughness of PVA fiber reinforced concrete, employ the volume mixing ratio is 0.2%, 0.1%, 0.08%, polyvinyl alcohol (PVA) will be mixed with ordinary C40 concrete to form PVA fibers reinforced concrete. Its flexural toughness properties were tested and the load-deflection curve of all beams is obtained. Based on the ASTM method, the flexural toughness of PVA fiber reinforced concrete is analyzed. The experimental results indicate that the PVA fiber can improve the flexural toughness and the deformation ability of concrete beams remarkably. When the fiber volume ratio is 0.1%, the flexural toughness index I5 and I10 of concrete with PVA fiber are 3.73 and 6.23 times higher than that of the plain concrete respectively. The failure mode of PVA fiber concrete is changed from brittle to ductile fracture.
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Cai, Xin Hua, Zhen He, and Wen Liu. "Experimental Study on Impact Resistance of PVA Fiber Reinforced Cement-Based Composite." Applied Mechanics and Materials 584-586 (July 2014): 1630–34. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1630.

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PVA fiber reinforced cement-based composite is a new high-performance cement-based composite material, which usually manufactured with PVA short fibers (does not exceed 2.5% vol.) and cement-based matrix. It has a significant strain-hardening characteristic and excellent crack controlling ability. Its ultimate tensile strain is up to 3% and crack width is not exceed 100μm. PVA fiber reinforced cement-based composite can be utilized to fabricated high energy absorption opponents, such as protective shield, seismic joint, impact-resistant site, etc. In this paper, the basic mechanical properties of PVA fiber reinforced cement-based composite has been tested and verified first. Then the impact resistance of PVA reinforced cement-based composite has been investigated via drop weight impact test, and compared with ones of plain concrete and steel fiber reinforced concrete with the same strength grade. Through analyzing the test results, it is concluded that PVA reinforced cement-based composite’s impact energy absorption is 48 times than plain concrete, and 9 times than steel fiber reinforced concrete respectively. The impact numbers of PVA reinforced cement-based composite is slightly lower than steel fiber reinforced concrete, but its impact absorption energy after initial cracking is 15 times than steel fiber reinforced concrete. In conclusion, PVA reinforced cement-based composite is an excellent impact material.
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Yan, Yong Dong, Jiang Hong Mao, and Chun Hua Lu. "Experimental Research on the Durability of PVA Fibers Reinforced Concrete." Advanced Materials Research 446-449 (January 2012): 703–7. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.703.

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In order to investigate the effects of polyvinyl alcohol (PVA) fibers on the performance of concrete, such as strength, crack resistance, permeability and chloride penetration properties, experimental research were carried out in this paper . Three types of fiber reinforced concretes with 0, 0.5%, 1.0% volume fractions were designed with the same water to cement ratio of 0.43. Flat band method was used to evaluate the cracking resistance, while AutoCLAM and ASTM C1202 were adopted to measure the permeability of concrete. The experimental results showed that the workability and the compression strength decreased as PVA adding volume increasing. However, the tension and the bending strengths increased for PVA fiber concrete. The number of cracks induced by the shrinkage of concrete was reduced by adding more PVA fibers. The permeability and chloride penetration ascended as PVA volume increasing. However, all the parameters with regards to strength, crack resistance, permeability and chloride penetration for fiber reinforced concrete were more reasonable than those for the specimens without PVA fiber. In additional, a very good correlation between the permeability and the electric flux was found in this paper, that means both AutoCLAM and ASTM C1202 could be used for concrete penetration test.
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Jalal, Asif, Luqmanul Hakim, and Nasir Shafiq. "Mechanical and Post-Cracking Characteristics of Fiber Reinforced Concrete Containing Copper-Coated Steel and PVA Fibers in 100% Cement and Fly Ash Concrete." Applied Sciences 11, no. 3 (January 25, 2021): 1048. http://dx.doi.org/10.3390/app11031048.

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This experimental study investigated the effects of polyvinyl alcohol (PVA) and copper-coated steel (CCS) on the mechanical properties and the post cracking behavior of fiber reinforced concrete (FRC). In designing high-performance concrete mixes, cement replacement materials are the essential ingredients. Therefore, the research objective was to investigate PVA and CCS fiber’s post-cracking performance in 100% cement concrete and concrete with 80% cement and 20% fly ash. The fiber content was fixed as a 0.3% volumetric fraction. CSS fibers required 15% more superplasticizer to achieve the desired slump of fresh concrete than the PVA fibers. Simultaneously, CCS fibers showed a 10% higher compressive strength than the concrete made of PVA fibers. Both fibers exhibited a similar effect in developing tensile and flexural strength. PVA fibers showed a value of 47 Gpa of secant modulus, and CCS fibers resulted in 37 Gpa in 100% cement concrete. In post-cracking behavior, CCS fibers showed better performance than the PVA fibers. The reason for this is that CCS showed 2.3 times the tensile strength of the PVA fibers. In comparing the two concretes, fly ash concrete showed about 10% higher compressive strength at 56 days and about 6% higher tensile and flexural strength. Similarly, fly ash concrete showed more than 15% first crack strength and flexural toughness than the 100% cement concrete in post-cracking behavior. Fiber-reinforced concrete containing PVA or CCS fibers showed enhanced post-cracking characteristics and its use could be preferred in structural applications.
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Wu, Ying, Qiao Yao Sun, and Wei Li. "Improved Bending Strength and early Crack-Resistance Performance of Engineered Cementitious Composites Reinforced by Hybrid-Fiber." Applied Mechanics and Materials 174-177 (May 2012): 1047–50. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.1047.

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The bending strength and crack-resistance performance of blank concretes are poor, which are not favorable to the sustainable development of infrastructure. Engineered cementitious composite (ECC) is a high performance fiber-reinforced cementitious composite designed with micromechanical principles, which can improve concrete bending performance to prolong service life and to reduce maintenance cost of infrastructure, so there is important significance for sustainable development of infrastructure. In this study, we have experimentally evaluated the effectiveness of bending and crack-resistance performance of concretes reinforced by different kinds of fibers which include UF500 cellulose fiber (UF500), polyvinyl alcohol (PVA) fiber, polypropylene (PP) fiber and hybrid-fiber (PVA and UF500 cellulose fibers), respectively. The bending performance of concrete with different kinds of fibers is better than that of blank concrete. In addition, early crack-resistance performance of hybrid-fibres enhanced samples has been improved as confirmed by the three-point bending test.
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Reddy, K. Tharun Kumar, and Srikanth Koniki. "Mechanical properties of concrete reinforced with graded pva fibers." E3S Web of Conferences 309 (2021): 01177. http://dx.doi.org/10.1051/e3sconf/202130901177.

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Concrete is poor in tensile property due to its brittle nature. Improvement in the mechanical properties of concrete is carried by combining the rebars and fibers in concrete. Earlier research state that non-metallic fibres improve pre-crack performance and metallic fibers improve post crack performance. Short fibers resist the micro-cracks at an early stage and long fibers resist macro-cracks. The combination of short and long fibers makes the performance of concrete much effective. In this study, the investigation is done on non-metallic PVA fiber with the lengths of 6mm (Short fiber) and 12mm (Long fiber) by hybridization of fibers on 50MPa concrete. The investigation is done in two stages; in the first stage, the optimum dosage of fiber content and strength effectiveness of strengths is carried. Further, in the second stage the hybridization of fiber is done with the 30% SF + 70% LF, 50%SF + 50% LF, 70% SF + 30% LF for finding the optimum hybrid combination. Mechanical properties of concrete like flexural strength, split tensile strength, compressive strength is investigated. The results obtained by the hybridization of fibers are compared with the mono fiber performance and control mix. Improvement in strength parameters is observed in fiber hybridization. According to the fiber functionality, the hybrid combination of 30% SF + 70% LF showed desired results by improving the overall performance of concrete. More long fibers content improves the crack growth resistance than short fibers in concrete.
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Naik, G. Prashanth, K. Hemalatha, and Srikanth Konik. "Flexural performance of Hybrid Fiber Reinforced Polymer Concrete using PVA fiber." E3S Web of Conferences 309 (2021): 01172. http://dx.doi.org/10.1051/e3sconf/202130901172.

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This paper present the experimental result of flexural behavior of Hybrid Fiber Reinforced Polymer (HFRP) concrete beams reinforced with Glass Fiber Reinforced Polymer (GFRP) rebars and steel bars. This experiment is conducted with the aim of replacing steel reinforcement with GFRP rebars to reduce the risk of corrosion of steel in concrete structures. The data presented in this study is obtained by conducting flexural test experiment on four beams of HFRP beams with various PVA fibre dosage of 0%, 0.25% and 0.5% and one Pure FRP beam. Fly ash is added by 25% in the mix as a mineral admixture to control the shrinkage cracks. The test result showed that by addition of PVA fibre in HFRP concrete enhance the mechanical properties of beam like deflections, ductility, load carrying capacity and flexural capacity. The optimum dosage of PVA fibre is 0.25%. which improve flexural strength by 200% and 31.1% and ductility increased by 112.2% and 55.12% as compared with Pure FRP beam and HFRP beam without PVA fibre.
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Li, Shu Jin, and Hong Ping Qian. "Crack Resistance and Permeability of Hybrid Fiber Reinforced Concrete Application in Understructure Work." Applied Mechanics and Materials 438-439 (October 2013): 257–61. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.257.

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An investigation of early anti-cracking performance and permeability of hybrid cellulose fiber and PVA fiber reinforced concrete is presented in this article. The test results show that, both cellulose fiber and PVA fiber effectively improve the splitting tensile strength. The early anti-cracking performance of concrete is obviously improved by PVA and cellulose hybrid fibers, and there exists the synergistic effect for restrain matrix cracking with hybrid fibers. Based on the practical application of a subway station project during two years, result shows the underground concrete wallboard containing hybrid fibers does not produce obvious cracks and leakage problem.
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Li, Ke Liang, Zhong Zheng Yang, and Wei Ping Nie. "Fiber Reinforced Hydraulic Concrete Using Four Gradations of Aggregates." Advanced Materials Research 243-249 (May 2011): 4614–18. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4614.

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Controlling crack of hyperbolic arch dam with a height of 305 m in Jinping hydropower station is an important problem. To improve the anti-cracking ability and reduce cracking risk of hydraulic concrete, polyvinyl alcohol (PVA) fiber and polypropylene thick fiber were used in hydraulic concrete using four gradations of aggregates. Indoor and productive tests were carried through to comparatively analyze workability, physical and mechanical properties and anti-cracking ability. Workability of fiber reinforced concrete was improved to be in favor of construction. When two kinds of fiber were used in concrete, the anti-cracking ability was greatly enhanced with lower elastic modulus-to-strength ratio and lager ultimate tensile strain. Concrete using PVA fiber had better anti-cracking ability than that of concrete using polypropylene thick fiber. PVA fiber reinforced concrete was applied in Jinping hydropower station. It is proved that PVA fiber reinforced concrete has good properties reaching design requirements of workability, compressive strength, ultimate tensile strain, frost resistance, permeability resistance.
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Hulle, Vrushabh K. "Experimental Study on Fiber Reinforced Concrete Using PVA Fiber and Glass Powder." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (August 31, 2021): 2707–13. http://dx.doi.org/10.22214/ijraset.2021.37708.

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Abstract: Concrete consisting of cement, water, fine and coarse aggregates are widely used in civil engineering constructions. Though making concrete is convenient and inexpensive, its brittle behavior upon tensile loading is one of its undesirable characteristics so that leads to the development of fiber reinforced concrete or engineered cementitious composites to improve this deficient. The Flexural strength of PVA (polyvinyl alcohol) FRC (fiber reinforced concrete) can be 150-200% greater than for normal concrete. According to Structural designers the damage tolerance and inherent tight crack width control of PVA FRC is found to be impressive in recent full-scale structural applications. If proper volume fractions are used the compressive strength PVA FRC can be similar to that of conventional concrete. The aim of this research work is to study compressive and tensile strength of FRC consisting PVA fiber & glass powder and studying the effect of glass powder in it. This research also gives rough idea on crack resistance capacity of FRC. In this paper we studied and provided detailed review on properties of PVA FRC with glass powder and experimentally identified the best ECC mix by analyzing the compressive & the flexural strength at different ratios like 0.5%, 1%, 1.5% of PVA fiber of total dry mix weight and in each case 15% of fine aggregate was replaced by glass powder. By conducting the compressive strength test and flexural strength test the maximum result we get at 28 days is 28.38Mpa and 8.95Mpa respectively which is more durable as compared to conventional concrete by IS 516:1959. So by analysis of results it can be seen that 1% mix is found to be optimum in all aspects. Keywords: PVA FRC, Polyvinyl Alcohol, Fibre Reinforced Concrete, Glass Powder.
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Dissertations / Theses on the topic "PVA fiber reinforced concrete"

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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 shown to improve the quality and durability of concrete. The focus of this research is to develop a mix design of fiber reinforced concrete and then test these materials for both compressive and tensile strength after casting into cubes. The effect of polyvinyl alcohol fibers on the mechanical properties of concrete was also studied. The impacts of moisture and the stress applied on the fibers were determined using Raman spectroscopy.
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Glowania, Micheal, Oliver Weichold, Markus Hojczyk, Gunnar Seide, and Thomas Gries. "Neue Beschichtungsverfahren für PVA-Zement-Composite in textilbewehrtem Beton." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1244043027880-94266.

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Im Rahmen des Transferprojektes T01 „Textilbeschichtung mit hochviskosen Massen“ des Sonderforschungsbereiches 532 (SFB 532) wird die Realisierung und Bewertung eines integrierten Beschichtungskonzeptes zur nachhaltigen Verbesserung der Tragfähigkeit von textilbewehrten Betonbauteilen an der RWTH Aachen University untersucht. Dazu wird eine neue Auftragstechnik für hochviskose Beschichtungsmassen entwickelt, die eine vollständige Penetration von Multifilamentgarnen mit großen Garntitern und einer hohen Anzahl an Filamenten in textilen Gelegen erzielt. Des Weiteren werden aktive Beschichtungsmassen auf der Basis von Polyvinylalkohol-Zement-Compositen, die eine homogene Anbindung aller Einzelfilamente an die Zementmatrix ermöglichen, erforscht.
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Ehrenbring, Hinoel Zamis. "Comportamento de concretos reforçados com microfibras de polipropileno (PP), álcool polivinílico (PVA) e recicladas de poliéster (POL) em relação à retração por secagem restringida e às propriedades mecânicas." Universidade do Vale do Rio dos Sinos, 2017. http://www.repositorio.jesuita.org.br/handle/UNISINOS/6703.

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Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2017-10-17T12:52:51Z No. of bitstreams: 1 Hinoel Zamis Ehrenbring_.pdf: 8050494 bytes, checksum: 6538a92632a1aa3f9d35c647159bef3f (MD5)
Made available in DSpace on 2017-10-17T12:52:51Z (GMT). No. of bitstreams: 1 Hinoel Zamis Ehrenbring_.pdf: 8050494 bytes, checksum: 6538a92632a1aa3f9d35c647159bef3f (MD5) Previous issue date: 2017-08-28
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
itt Performance - Instituto Tecnológico em Desempenho da Construção Civil
UNISINOS - Universidade do Vale do Rio dos Sinos
Concretos com tecnologia avançada tornam-se cada vez mais comuns na indústria da construção civil. O desenvolvimento de produtos minerais e químicos fomenta a geração desses compósitos, possibilitando a inserção de insumos com desempenhos mecânicos melhorados. Todavia, mesmo com inúmeras vantagens, os novos concretos ainda se encontram suscetíveis à incidência de fissuras causadas pela retração. Sendo uma característica inerente às matrizes cimentícias, a retração, quando restringida, pode gerar manifestações patológicas, que prejudiquem a durabilidade da estrutura. Estudos vêm sendo realizados com enfoque na mitigação dessas anomalias, utilizando reforços primários e secundários dentro da matriz cimentícia. Como alternativa, utilizando as fibras como reforços é possível garantir alterações nos comportamentos mecânicos da mistura, a exemplo da resistência à tração, fator de tenacidade, capacidade de deformação e controle de fissuração. Com isso, nessa pesquisa foram empregadas, de maneira isolada e híbrida, microfibras poliméricas em uma matriz cimentícia. As microfibras eram constituídas por polipropileno (PP), álcool polivinílico (PVA) e recicladas de poliéster (POL). Para tanto, avaliou-se o fenômeno da retração por secagem dos compósitos por meio do ensaio de anel restringido, resistência à compressão axial, resistência à tração na flexão, módulo de elasticidade e tenacidade. Conjuntamente, investigou-se a microestrutura dos compósitos, utilizando o ensaio de microscopia eletrônica de varredura (MEV), a fim de identificar a zona de interface entre o reforço e a matriz cimentícia, assim como a integridade física do reforço no concreto. Os compósitos com microfibras apresentaram maior retração por secagem, quando comparados à matriz referência, chegando a deformações superiores a 50 μm/m. Todas as misturas atingiram alto potencial de fissuração, sendo as amostras contendo microfibras de PP e PVA, as quais obtiveram a formação da fissura mais tardiamente (14 dias). Com relação à resistência à compressão axial e tração na flexão, a inserção de microfibras poliméricas promoveu a redução dos valores em relação à matriz referência. Todavia, o uso de microfibras de PVA não promoveu a queda de resistência à tração na flexão da matriz. Já o fator de tenacidade das misturas com fibras foi superior em relação ao concreto referência, ampliando em até 38 vezes os resultados. Verificou-se que a zona de interface formada pelas microfibras de PVA foi menor, quando comparada às demais opções, o que comprovou os bons resultados proporcionados pelo reforço. Também foi possível observar que as microfibras recicladas de poliéster foram agredidas em meio alcalino, diferentemente das demais.
Concretes with advanced technology become increasingly common in the construction industry. The development of mineral and chemical products encourages the generation of these composites, allowing the insertion of inputs with improved mechanical performances. However, even with numerous advantages, the new concretes are still susceptible to the incidence of cracks caused by shrinkage. As an inherent characteristic of cementitious matrices, shrinkage, when restricted, can impair the quality of the structure and, as a result, generate pathological manifestations. Studies have been carried out focusing on the mitigation of these anomalies, using primary and secondary reinforcements within the cementitious matrix. As an alternative, the fibrous reinforcements guarantee changes in the mechanical behavior of the mixture, such as tensile strength, tenacity factor, deformation capacity and cracking control. Thus, in this research, isolated and hybrid polymer microfibers were used in a reference cementitious matrix. The filaments consisted of polypropylene (PP), polyvinyl alcohol (PVA) and recycled polyester microfibers (POL). For this, the phenomenon of the drying shrinkage of the composites was evaluated by means of the restricted ring test, axial compression strength, flexural tensile strength, modulus of elasticity and toughness. The microstructure of the composites was investigated using the scanning electron microscopy (SEM), in order to identify the interface zone between the reinforcement and the cementitious matrix, as well as the physical integrity of the reinforcement in the concrete. The composites with microfibers presented greater drying shrinkage, when compared to the reference matrix, reaching deformations of more than 50 μm/m. All the blends reached a high cracking potential, with the samples containing PP and PVA microfibers which obtained cracking formation later (14 days). With respect to the compressive strength, the insertion of polymer microfibers significantly decreased the values in relation to the reference matrix. The toughness factor of the bundled mixtures was superior in relation to the reference concrete, increasing up to 38 times the results. On the other hand, the tensile strength in the flexion decreased values with the use of the filamentary reinforcements, except for the mixture with PVA microfibres. It was verified that the interface zone formed by the PVA microfibers was smaller, when compared to the other options, which proved the good results provided by the reinforcement. It was also possible to observe that recycled polyester microfibers were attacked in alkaline solution, unlike the others.
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Song, Gao. "Matrix manipulation to study ECC behaviour." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/4647.

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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2005.
192 leaves on CD format, preliminary i-xii pages and numbered pages 1-135. Includes bibliography, list of figures and tables.
ENGLISH ABSTRACT: As a fibre reinforced material, engineered cementitious composite (ECC) has tough, strain-hardening behaviour in tension despite containing low volumes of fibres. This property can be brought about by developments in fibre, matrix and interfacial properties. Poly Vinyl Alcohol (PVA) fibre has been developed in recent years for ECC, due to its high tensile strength and elasticity modulus. However, the strong interfacial bond between fibre surface and matrix is a challenge for its application. This study focuses on the tailoring of matrix and fibre/matrix interfacial properties by cement replacement with fly ash (FA) and Ground Granulated Corex Slagment (GGCS). In this study the direct tensile test, three point bending test, micro-scale analysis, such as X-Ray Fluorescence Spectrometry analysis (XRF), Scanning Electron Microscope (SEM), are employed to investigate the influence of cement replacement, aging, Water/Binder (W/B) ratio, workability on ECC behaviour. This study has successfully achieved the aim that cement replacement by FA and GGCS helps to improve the fibre/matrix interfacial properties and therefore enhances the ECC tensile behaviour. Specifically, a high volume FA-ECC has stable high tensile strain capacity at the age of 21 days. This enables a constant matrix design for the investigation of other matrix influences. The Slag-ECC has a higher tensile strength but lower tensile strain capacity. The combination of FA and GGCS, moderate tensile strength and strain capacity is achieved Both tensile tests and Micro-scale analyses infer that the high volume FA-ECC has an adhesive type fibre/matrix interfacial interaction, as opposed to the cohesive type of normal PVA fibre-ECC. The different tensile behaviour trend of steel fibre-ECC and PVA fibre-ECC with the FA content is presented and discussed in this research. The investigations of aging influence indicate that the high volume FA-ECC has a beneficial effect on the properties of the composite at an early stage. However, at a high age, it has some difficulty to undergo multiple cracking and then leads to the reduction of tensile strain capacity. The modified mix design is made with the combination of FA and GGCS, which successfully increases the interfacial bond and, thereby, improves the shear transfer to reach the matrix crack strength. Therefore, an improved high age tensile behaviour is achieved. The W/B and fresh state workability influence investigations show that the W/B can hardly affect the tensile strain at early age. However, the workability influences on composite tensile strain significantly, because of the influence on fibre dispersion. Other investigations with regard to the hybrid fibre influences, the comparison of bending behaviours between extruded plate and cast plate, the relation between bending MOR and tensile stress, and the relation between compression strength and tensile strength contribute to understand ECC behaviour.
AFRIKAANSE OPSOMMING: As ‘n veselversterkte materiaal, het ontwerpte sementbasis saamgestelde materiale, taai vervormingsverhardingseienskappe in trek, ten spyte van lae veselinhoud. Hierdie eienskap word bewerkstellig, deur ontwikkelings in vesel, matriks en tussenveselbindingseienskappe. Poli-Viniel Alkohol (PVA) vesels is ontwikkel vir ECC, as gevolg van die hoë trekkrag en hoë modulus van hierdie veseltipe. Die sterk binding tussen die PVA-veseloppervlak en die matriks is egter ‘n uitdaging vir sy toepassing. Hierdie studie fokus op die skep van gunstige matriks en vesel/matriks tussenvesel-bindingseienskappe deur sement te vervang met vlieg-as (FA) en slagment (GGCS).In hierdie navorsing is direkte trek-toetse, drie-punt-buigtoetse, mikro-skaal analise (soos die X-straal ‘Fluorescence Spectrometry’ analise (XRF) en Skanderende Elektron Mikroskoop (SEM))toegepas. Hierdie metodes is gebruik om die invloed van sementvervanging,veroudering, water/binder (W/B)-verhouding en werkbaarheid op die meganiese gedrag van ECC te ondersoek.Die resultate van hierdie navorsing toon dat sementvervanging deur FA en GGCS help om die vesel/matriks tussenveselbindingseienskappe te verbeter. Dus is die ECC-trekgedrag ook verbeter. Veral ‘n hoë volume FA-ECC het stabiele hoë trekvervormingskapasiteit op ‘n ouderdom van 21 dae. Dit bewerkstellig ‘n konstante matriksontwerp vir die navorsing van ander matriks invloede. Die Slag-ECC het ‘n hoër treksterkte, maar laer trekvervormingskapasiteit. Deur die kombinasie van FA en GGCS word hoë treksterkte, sowel as gematigde vervormbaarheid in trek verkry. Beide trektoetse en mikro-skaal analise dui aan dat die hoë volume FA-ECC ‘n adhesie-tipe vesel/matriks tussenvesel-bindingsinteraksie het, teenoor die ‘kohesie-tipe van normale PVA vesel-ECC. Die verskille in trekgedrag van staalvesel-ECC en PVA vesel-ECC ten opsigte van die FA-inhoud is ondersoek en word bespreek in die navorsing. Die navorsing toon verder dat die hoë volume FA-ECC goeie meganiese eienskappe het op ‘n vroeë ouderdom. Op hoër ouderdom word minder krake gevorm, wat ‘n verlaging in die trekvervormingskapasiteit tot gevolg het. Met die kombinasie van FA en GGCS, word die vesel-matriksverband verhoog, waardeur ‘n verbetering in die skuifoordrag tussen vesel en matriks plaasvind. Verbeterde hoë omeganiese gedrag word daardeur tot stand gebring. Navorsing ten opsigte van die invoed van die W/B en werkbaarheid dui daarop dat die W/B slegs geringe invloed het op die trekvormbaarheid, terwyl die werkbaarheid ‘n dominerende rol speel in hierdie verband.Verdere studies sluit in die invloed van verskillende vesels, die vergelyking van die buigingsgedrag van geëkstueerde plate en gegote plate, die verhouding tussen buigsterkte en treksterkte, en die verhouding tussen druksterkte en treksterkte dra by tot beter begrip van die gedrag van ECC.
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Hamed, Sarah. "Shear Contribution of Basalt Fiber-Reinforced Concrete Reinforced with Basalt Fiber-Reinforced Polymer Bars." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/34008.

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Cette étude évalue expérimentalement et analytiquement le comportement au cisaillement des poutres en béton renforcé de fibres de basalte (BRFB) renforcées longitudinalement avec des barres en polymère renforcé de fibres de basalte (PRFB). Un nouveau type de macro-fibres de basalte a été ajouté au mélange de béton pour produire le mélange de BRFB. Quatorze poutres (152 x 254 x 2000 mm) sans armature transversale ajouté ont été testées sous une configuration de chargement à quatre points jusqu'à la défaillance. Les poutres ont été regroupés en deux groupes A et B en fonction de leurs rapports portée de cisaillement/profondeur, a/d. Les poutres du groupe A avaient un rapport a/d de 3,3 tandis que celles du groupe B avaient un rapport a/d de 2,5. Outre les rapports a/d, les paramètres étudiés comprenaient la fraction volumique des fibres ajoutées (0,75 et 1,5%) et le taux de renforcement longitudinal des barres en PRFB (0,31, 0,48, 0,69, 1,05 et 1,52). Les résultats des tests ont montré que l’ajout de macro-fibres de basalte au mélange de béton améliorait sa résistance à la compression. Une relation directe entre la fraction volumique de fibres, Vf, et la résistance à la compression a été observée. Les cylindres de béton coulés avec une Vf de 0,75 et 1,5% ont entraîné une augmentation de 11 et 30% de leur résistance à la compression par rapport à ceux moulés en béton standard (sans fibres), respectivement. L'ajout de fibres a également amélioré le mode de défaillance des poutres BRFB-PRFB que les poutres de contrôle coulées avec du béton standard. L’augmentation de la fraction volumique des fibres a réduit l’espacement entre les fissures et gêné sa propagation. Une amélioration significative des capacités de cisaillement des poutres testées a également été observée lorsque les macro-fibres de basalte ont été ajoutées à une fraction volumique Vf de 0,75. L'augmentation moyenne des capacités de cisaillement des poutres des groupes A et B, ayant les mêmes taux de renforcement, était respectivement de 45 et 44%, par rapport à celles des poutres de contrôle. Il a été noté que le gain en capacité de cisaillement des poutres testées était plus prononcé dans les poutres avec a/d= 3,3 que dans les poutres avec a/d = 2,5 lorsque le taux de renforcement augmentait. Au cours de la phase analytique, plusieurs modèles ont été utilisés pour prédire les capacités de cisaillement des poutres. Tous les modèles disponibles surestimaient les capacités de cisaillement des poutres testées avec un rapport moyen Vpre/Vexp compris entre 1,29 et 2,64. Cette observation a montré que ces modèles ne permettaient pas de prédire les capacités de cisaillement des poutres BRFB-PRFB. Un nouveau modèle modifié intégrant le type de renforcement longitudinal, le type de béton fibré et la densité du béton est proposé. Le modèle d’Ashour et al. -A (1992) a été modifié en utilisant un facteur égal au rapport entre le module des barres en PRF, Ef, et celui des barres en acier Es. Ce rapport prend en compte la différence de propriétés entre les barres en PRF et celles en acier, négligée par les modèles précédents. Le modèle proposé prédit bien les capacités de cisaillement des poutres BRFB-PRFB testées dans la présente étude avec des rapports moyens Vpre/Vexp = 0,82 ± 0,12 et 0,80 ± 0,01 pour les poutres des groupes A et B, respectivement. Les capacités de cisaillement des poutres en béton léger testées par Abbadi (2018) ont été prédites avec un rapport moyen Vpre/Vexp = 0,77 ± 0,05. De plus, le modèle prédit bien les capacités de cisaillement des poutres coulées avec du béton qui contient des fibres en acier testées par Awadallah et al. (2014) avec un rapport moyen Vpre/Vexp = 0,89 ± 0,07. Cela indique la large gamme d'applicabilité du modèle proposé. Cependant, il est recommandé d’évaluer le modèle proposé sur un ensemble de données plus large que celui présenté dans cette étude.
This study evaluates both experimentally and analytically the shear behavior of basalt fiber-reinforced concrete (BFRC) beams reinforced longitudinally with basalt fiber-reinforced polymer (BFRP) bars. A new type of basalt macro-fibers was added to the concrete mix to produce the BFRC mix. Fourteen beams (152 x 254 x 2000 mm) with no transverse reinforcement provided were tested under four-point loading configuration until failure occurred. The beams were grouped in two groups A and B depending on their span-to-depth ratios, a/d. Beams of group A had a ratio a/d of 3.3 while those of group B had a ratio a/d of 2.5. Besides the span-to-depth ratios, the parameters investigated included the volume fraction of the fibers added (0.75 and 1.5%) and the longitudinal reinforcement ratio of the BFRP reinforcing bars (0.31, 0.48, 0.69, 1.05, and 1.52). The test results showed that the addition of basalt macro-fibers to the concrete mix enhanced its compressive strength. A direct relationship between the fiber volume fraction, Vf, and the compressive strength was observed. Concrete cylinders cast with Vf of 0.75 and 1.5% yielded 11 and 30% increase in their compressive strengths over those cast with plain concrete, respectively. The addition of fibers greatly enhanced the shear capacity of BFRC-BFRP beams compared to their control beams cast with plain concrete. The increase of the fiber volume fraction decreased the spacing between cracks and hindered its propagation. A significant enhancement in the shear capacities of the tested beams was also observed when the basalt macro-fibers were added at a volume fraction Vf of 0.75%. The average increase in the shear capacities of beams of group A and B, having the same reinforcement ratios, were 45 and 44%, respectively, in comparison with those of the control beams. It was noticed that the gain in shear capacities of the tested beams was more pronounced in beams with a/d = 3.3 than in beams with a/d = 2.5 when the reinforcement ratio increased. In the analytical phase, several models were used to predict the shear capacities of the beams. All of the available models overestimated the shear capacities of the tested beams with average ratio Vpre/Vexp ranging between 1.29 to 2.64. This finding indicated that these models were not suitable to predict the shear capacities of the BFRC-BFRP beams. A new modified model incorporating the type of the longitudinal reinforcement, the type of FRC used, and the density of concrete is proposed. The model of Ashour et al. –A (1992) was calibrated using a calibration factor equal to the ratio of modulus of FRP bars used, Ef, and that of steel bars, Es. This ratio takes into consideration the difference in properties between the FRP and steel bars, which was overlooked by previous models. The proposed model predicted well the shear capacities of the BFRC-BFRP beams tested in the current study with average ratios Vpre/Vexp = 0.82 ± 0.12 and 0.80 ± 0.01 for beams of groups A and B, respectively. The shear capacities of the lightweight concrete beams tested by Abbadi (2018) were predicted with an average ratio Vpre/Vexp = 0.77 ± 0.05. Moreover, the model predicted well the shear capacities of the SFRC beams reinforced with BFRP bars tested by Awadallah et al. (2014) with an average ratio Vpre/Vexp = 0.89 ± 0.07. This indicates the wide range of applicability of the proposed model. However, it is recommended that the proposed model be assessed on larger set of data than that presented in this study
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Hosin, Alyass Azzat. "Fiber reinforced coal combustion products concrete /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1342743231&sid=11&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Valle, Mariano Oñar. "Shear transfer in fiber reinforced concrete." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/72749.

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Hearing, Brian Phillip 1972. "Delamination in reinforced concrete retrofitted with fiber reinforced plastics." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9141.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
Includes bibliographical references (leaves 251-269).
The addition of fiber-reinforced plastic (FRP) laminates bonded to the tension face of concrete members is becoming an attractive solution to the rehabilitation and retrofit of damaged structural systems. Flexural strength is enhanced with this method but the failure behavior of the system can become more brittle, often involving delamination of the composite. This study investigates failure modes including delamination with the use of fiber reinforced plastics to rehabilitate various concrete structures. The focus is on delamination and its causes, specifically in the presence of existing cracks in the retrofitted concrete system. First, delamination processes in FRP retrofitted concrete systems are studied through combined experimental and analytical procedures. The delamination process is observed to initiate in the concrete substrate with micro cracks that coalesce into an unstable macro crack at failure. This macroscopic behavior is modeled through a finite element procedure with a smeared crack approach, which is found to be limited in the ability to represent the stress intensity at the delamination tip. For this reason it is shown that interfacial fracture mechanics can be used to describe the bimaterial elasticity and complex stress intensity at the delamination tip and provide a criterion governing the propagation of delamination using energy methods. Then, peeling processes occurring at existing cracks in the retrofitted system are studied through fracture mechanics based experimental and analytical procedures. An experimental program involving specialized shear notch specimens demonstrates that the location of the notch and laminate development length are influential on the shear crack peeling process. A finite element procedure is used to evaluate the crack driving forces applied at the shear notch crack mouth, and the fracture analysis is extended to evaluate initiation of peeling at the shear notch scenario. Finally, delamination failures in FRP retrofitted reinforced concrete beams representing "real-life" retrofit scenarios are investigated. An experimental and analytical program is conducted to investigate influences on the failure processes. The application of the fracture based peeling analysis to a quantitative design procedure is investigated, and a computational design aid to assist the iterative design procedure is developed.
by Brian Phillip Hearing.
Ph.D.
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Paschalis, Spyridon A. "Strengthening of existing reinforced concrete structures using ultra high performance fiber reinforced concrete." Thesis, University of Brighton, 2017. https://research.brighton.ac.uk/en/studentTheses/c07ce9c7-5880-4108-a0f2-68bf6ea50dd5.

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Most of the new Reinforced Concrete (RC) structures which are built nowadays have a high safety level. Nevertheless, we cannot claim the same for structures built in the past. Many of these were designed without any regulations, or are based on those which have proved to be inadequate. Additionally, it seems that many old structures have reached the end of their service life and, in many cases, were designed to carry loads significantly lower than the current needs specify. Therefore, the structural evaluation and intervention are considered necessary, so they can meet the same requirements as the structures which are built today. Existing techniques for the strengthening and retrofitting of RC structures present crucial disadvantages which are mainly related to the ease of application, the high cost, the time it takes to be applied, the relocation of the tenants during the application of the technique and the poor performance. Research is now focused on new techniques which combine strength, cost effectiveness and ease of application. The superior mechanical properties of Ultra High Performance Fiber Reinforced Concrete (UHPFRC) compared to conventional concrete, together with the ease of preparation and application of the material, make the application of UHPFRC in the field of strengthening of RC structures attractive. The present research aims to investigate the effectiveness of UHPFRC as a strengthening material, and to examine if the material is able to increase the load carrying capacity of existing RC elements. This has been achieved through an extensive experimental and numerical investigation. The first part of the present research is focused on the experimental investigation of the properties of the material which are missing from the literature and the development of a mixture design which can be used for strengthening applications. The second part is focused on the realistic application of the material for the strengthening of existing RC elements using different strengthening configurations. Finally, in the last part, certain significant parameters of the examined technique, which are mainly related to the design of the technique, are investigated numerically. From the experimental and numerical investigation of the present research it was clear that UHPFRC is a material with enhanced properties and the strengthening with UHPFRC is a well promising technique. Therefore, in all the examined cases, the performance of the strengthened elements was improved. Finally, an important finding of the present research was that the bonding between UHPFRC and concrete is effective with low values of slip at the interface.
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Elsaigh, W. A. "Steel fiber reinforced concrete ground slabs : a comparative evaluation of plain and steel fiber reinforced concrete ground slabs." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-03032006-154355/.

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Books on the topic "PVA fiber reinforced concrete"

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Singh, Harvinder. Steel Fiber Reinforced Concrete. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2507-5.

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Vares, Sirje. Cellulose fibre concrete. Espoo, Finland: Technical Research Centre of Finland, 1997.

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Handbook of fiber-reinforced concrete: Principles properties, developments and applications. Park Ridge, N.J., U.S.A: Noyes Publications, 1990.

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Rabinovich, F. N. Dispersno armirovannye betony. Moskva: Stroĭizdat, 1989.

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Vares, Sirje. Fibre-reinforced high-strength concrete. Espoo, Finland: Technical Research Centre of Finland, 1993.

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Concretes with dispersed reinforcement. Rotterdam: A.A. Balkema, 1995.

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Lanu, Matti. Testing fibre-reinforced concrete in some structural applications. Espoo, Finland: Technical Research Centre of Finland, 1995.

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International Symposium on Fiber Reinforced Concrete (1987 Madras, India). Proceedings of the International Symposium on Fibre Reinforced Concrete, Madras, India, December 16-19, 1987. gow Delhi: Oxford & IBH Pub. Co., 1987.

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Naaman, Antoine E. Ferrocement and laminated cementitious composites. Ann Arbor, Mich: Techno Press, 2000.

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True, Graham. GRC production & uses. London: Palladian, 1986.

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Book chapters on the topic "PVA fiber reinforced concrete"

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Li, Wei, and Hongjian Du. "Properties of PVA Fiber Reinforced Geopolymer Mortar." In International Congress on Polymers in Concrete (ICPIC 2018), 557–64. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78175-4_71.

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

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Ferrara, Liberato. "Fiber Reinforced SCC." In Mechanical Properties of Self-Compacting Concrete, 161–219. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03245-0_6.

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Ramesh, M., C. Deepa, and Arivumani Ravanan. "Bamboo Fiber Reinforced Concrete Composites." In Bamboo Fiber Composites, 127–45. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8489-3_8.

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Umair, Muhammad, Muhammad Imran Khan, and Yasir Nawab. "Green Fiber-Reinforced Concrete Composites." In Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, 2309–39. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-36268-3_113.

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Makul, Natt. "Principles of Fiber-Reinforced Concrete." In Structural Integrity, 79–98. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69602-3_4.

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Umair, Muhammad, Muhammad Imran Khan, and Yasir Nawab. "Green Fiber-Reinforced Concrete Composites." In Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, 1–32. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-11155-7_113-1.

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Ji, Guomin, Terje Kanstad, and Steinar Trygstad. "Structural behavior of fiber reinforced concrete foundations." In Computational Modelling of Concrete and Concrete Structures, 264–74. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003316404-32.

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An, Chen, Menglan Duan, Segen F. Estefen, and Jian Su. "Sandwich Pipes Filled with PVA Fiber Reinforced Cementitious Composites." In Structural and Thermal Analyses of Deepwater Pipes, 35–58. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53540-7_4.

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Varela, Benjamin, and Jeffrey W. Rogers. "Mechanical Response of Discontinuous Filament PVA Fiber Reinforced Geopolymers." In Ceramic Engineering and Science Proceedings, 29–34. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118095393.ch3.

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Conference papers on the topic "PVA fiber reinforced concrete"

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Holschemacher, Klaus. "Flexural Behavior of PVA-Fiber Reinforced Lightweight Concrete." In Research, Development and Practice in Structural Engineering and Construction. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-08-7920-4_m-6-0103.

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Yu, Jing, Lingshi Meng, and Christopher Leung. "Pull-out Response of Single Steel Fiber Embedded in PVA Fiber Reinforced Cementitious Matrix." In 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures. IA-FraMCoS, 2016. http://dx.doi.org/10.21012/fc9.021.

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"PVA Polymer Modified Glass Fiber Reinforced Cementitious Composites." In SP-206: Concrete: Material Science to Application - A Tribute to Surendra P. Shah. American Concrete Institute, 2002. http://dx.doi.org/10.14359/12265.

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"Durability of Extruded Thin Sheet PVA Fiber Reinforced Cement Composites." In SP-190: High-Performance Fiber-Reinforced Concrete Thin Sheet Products. American Concrete Institute, 2000. http://dx.doi.org/10.14359/5725.

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"Properties and durability of polyvinyl alcohol (PVA) fiber-reinforced rubber mortar." In SP-334: Sustainable Concrete with Beneficial Byproducts. American Concrete Institute, 2019. http://dx.doi.org/10.14359/51720258.

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Deshpande, Alok A., Dhanendra Kumar, Ravi Ranade, and Andrew S. Whittaker. "Advanced concretes for high temperature applications." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0328.

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<p>The mechanical properties of concrete deteriorate at high temperatures. Strain-hardening cementitious composites (SHCC) are a special class of fiber-reinforced concretes that exhibit strain-hardening behavior in direct tension. The mechanical behavior of a SHCC made using polyvinyl alcohol (PVA) fibers is characterized after exposure to temperatures up to 800°C. The effects of temperature on compressive strength, splitting tensile strength and modulus of rupture are reported. For comparison, a normal strength conventional concrete of similar compressive strength to the SHCC was heated and tested in the same conditions as the SHCC. The normalized tensile strength of SHCC at room temperature, and after exposure to high temperature, is significantly greater than the value for conventional concrete. The PVA fibers provide crack-bridging capacity up to about 200°C (melting point of PVA fibers is 230°C), leading to improved tensile behavior. At greater temperatures, the fibers melt, creating pathways for steam to escape, reducing micro-cracking and significantly improving mechanical behavior with respect to conventional concrete. SHCC is a robust alternative to conventional concrete for high temperature applications.</p>
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Xu, Zongnan, Tao Wang, and Weilun Wang. "Effect of PVA fiber content on creep property of fiber reinforced high-strength concrete columns." In ADVANCES IN MATERIALS, MACHINERY, ELECTRONICS II: Proceedings of the 2nd International Conference on Advances in Materials, Machinery, Electronics (AMME 2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5033598.

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Skourup, Brian N., and Ece Erdogmus. "Characteristics of PVA Fiber-Reinforced Mortars." In Structures Congress 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41031(341)178.

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Cauberg, N. "Fiber reinforced self-compacting concrete." In SCC'2005-China - 1st International Symposium on Design, Performance and Use of Self-Consolidating Concrete. RILEM Publications SARL, 2005. http://dx.doi.org/10.1617/2912143624.051.

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Anas, Muhammad, Majid Khan, Hazrat Bilal, Shantul Jadoon, and Muhammad Nadeem Khan. "Fiber Reinforced Concrete: A Review." In ICEC 2022. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/engproc2022022003.

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Reports on the topic "PVA fiber reinforced concrete"

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Al-lami, Karrar. Experimental Investigation of Fiber Reinforced Concrete Beams. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2293.

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Brady, Pamalee A., and Orange S. Marshall. Shear Strengthening of Reinforced Concrete Beams Using Fiber-Reinforced Polymer Wraps. Fort Belvoir, VA: Defense Technical Information Center, October 1998. http://dx.doi.org/10.21236/ada359462.

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Bank, Lawrence C., Anthony J. Lamanna, James C. Ray, and Gerardo I. Velazquez. Rapid Strengthening of Reinforced Concrete Beams with Mechanically Fastened, Fiber-Reinforced Polymeric Composite Materials. Fort Belvoir, VA: Defense Technical Information Center, March 2002. http://dx.doi.org/10.21236/ada400415.

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MacFarlane, Eric Robert. Proposed Methodology for Design of Carbon Fiber Reinforced Polymer Spike Anchors into Reinforced Concrete. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1360687.

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Grimes, Hartley Ray. The Longitudinal Shear Behavior of Carbon Fiber Grid Reinforced Concrete Toppings. Precast/Prestressed Concrete Institute, 2009. http://dx.doi.org/10.15554/pci.rr.comp-010.

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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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Higgins, Christopher. Environmental Durability of Reinforced Concrete Deck Girders Strengthened for Shear with Surface Bonded Carbon Fiber-Reinforced Polymer. Portland State University Library, May 2009. http://dx.doi.org/10.15760/trec.21.

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Starnes, Monica A., and Nicholas J. Carino. Infrared thermography for nondestructive evaluation of fiber reinforced polymer composites bonded to concrete. Gaithersburg, MD: National Institute of Standards and Technology, 2003. http://dx.doi.org/10.6028/nist.ir.6949.

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Higgins, Christopher. Environmental Durability of Reinforced Concrete Deck Girders Strengthened for Shear with Surface-Bonded Carbon Fiber-Reinforced Polymer: Final Report. Portland State University Library, May 2009. http://dx.doi.org/10.15760/trec.86.

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Burchfield, Charles. Performance assessment of discontinuous fibers in fiber-reinforced concrete : current state-of-the-art. Geotechnical and Structures Laboratory (U.S.), July 2017. http://dx.doi.org/10.21079/11681/22771.

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