Searched for: subject%3A%22UHPFRC%22
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document
Kooreman, Duco (author)
Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) is a promising material for different applications such as bridge deck strengthening due to its improved strength and durability properties. Especially the tensile strength and ductility is heavily dependent on the distribution and orientation of the steel fibers within the element. This...
master thesis 2024
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Pimentel, Mário (author), Sine, Aurélio (author), Nunes, Sandra (author)
The tensile response of ultra-high performance fibre-reinforced composites (UHPFRC) is decisive in many applications and depends on the steel fibre content and orientation. These vary troughout the structural element and may differ from those in the laboratory specimens used to characterize the material behaviour. This work presents the...
journal article 2024
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Huang, Y. (author), Gu, D. (author), Mustafa, S. (author), Grunewald, S. (author), Lukovic, M. (author)
Ultra-high performance fiber reinforced concrete (UHPFRC) is an advanced cementitious composite with high compressive strength and low permeability. Due to its excellent mechanical properties and superior durability, UHPFRC is considered promising for strengthening of the existing concrete bridges. In order to examine its strengthening...
journal article 2023
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Al-Obaidi, S.M.J. (author), He, S. (author), Schlangen, E. (author), Ferrara, Liberato (author)
This study investigates the bond-slip behavior of micro steel fibers embedded into an Ultra-High-Performance Concrete (UHPC) matrix as affected by the self-healing of the same matrix in different exposure conditions. The UHPC matrix contains a crystalline admixture as a promoter of the autogenous self-healing specially added to enhance the...
journal article 2023
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Matos, Ana Mafalda (author), Granja, José (author), Nunes, Sandra (author), Barroso-Aguiar, José L. (author), Azenha, Miguel (author)
The current work provides an integrated analysis of autogenous shrinkage, isothermal calorimetry, and modulus of elasticity measurement through ambient response method (EMM-ARM), to characterise the hardening behaviour of a non-proprietary and more eco-friendly ultra-high performance fibre reinforced cementitious composite (UHPFRC)....
journal article 2023
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Awasthy, Nikhil (author), Schlangen, E. (author), Hordijk, Dick (author), Šavija, B. (author), Lukovic, M. (author)
Concrete is characterized in terms of its engineering properties, mainly strength and stiffness, which are subsequently used in structural design. However, the apparent (i.e., measured) concrete properties are not intrinsic but dependent on the conditions under which the measurement is performed. Herein a combined experimental and numerical...
journal article 2023
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Huang, Y. (author), Schlangen, E. (author), Lukovic, M. (author)
Ultra-high performance fiber-reinforced concrete (UHPFRC) exhibits high compressive and tensile strength together with outstanding durability. Due to these superior properties, UHPFRC is promising for retrofitting existing reinforced concrete (RC) bridges. While research and on-site applications show the significant improvement of RC structures...
conference paper 2023
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Huang, Y. (author), Grunewald, S. (author), Schlangen, E. (author), Lukovic, M. (author)
Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC) is, due to its superior mechanical properties and low permeability, a promising material for the restoration and improvement of the mechanical resistance and durability of existing Reinforced Concrete (RC) structures. This paper reviews the strengthening applications of UHPFRC in flexure,...
review 2022
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Koetsier, Maria (author)
The concrete bridges constructed in the 1960s and 1970s lack shear reinforcement, rendering them non-compliant with current design regulations. To potentially enhance their shear capacity, the proposed approach involves applying a layer of ultrahigh-performance fiber-reinforced concrete (UHPFRC) on both sides of the normal strength concrete (NSC...
bachelor thesis 2021
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Sousa, Alex M.D. de (author), Lantsoght, E.O.L. (author), Genikomsou, Aikaterini S. (author), Krahl, Pablo A. (author), Debs, Mounir K. El (author)
The outstanding mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC) can be used to improve the punching behavior of new slab-column connections. This study investigates the punching capacity of flat slab-column connections built with a rational combination of normal strength concrete (NSC) and UHPFRC in critical...
journal article 2021
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Zhang, Youyou (author), Xin, H. (author), Correia, José A.F.O. (author)
The development of numerical simulation for Ultra-high-performance concrete (UHPC) and Ultra-high-performance fiber-reinforced concretes (UHPFRC) is fundamental for the design and construction of related structures. The simplified engineering stress-strain relationship and the input values are necessary in the finite element modeling. Four...
journal article 2021
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Matos, Ana Mafalda (author), Chaves Figueiredo, S. (author), Nunes, Sandra (author), Schlangen, E. (author), Barroso-Aguiar, José L. (author)
The high cost of UHPFRC is a limitation on the practical application in real construction projects. However, a very competitive UHPFRC approach is the hybrid structural elements, where thin layers of UHPFRC are employed to rehabilitate/strengthen damage cover concrete. New layers subjected to harsh conditions (loads and/or environmental) can...
journal article 2021
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Matos, Ana Mafalda (author), Nunes, Sandra (author), Chaves Figueiredo, S. (author), Schlangen, E. (author), Aguiar, José L.Barroso (author)
The subject of this paper is the extent to which, during wetting–drying cycles, chloride ions can penetrate Ultra-high-Performance Fibre Reinforced Cementitious Composites (UHPFRC) specimens subjected to combined mechanical and environmental load. Pre-cracking was obtained by subjecting prismatic specimens (40 × 40 × 60mm<sup>3</sup>) to four...
book chapter 2021
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Jaspers Focks, Thijmen (author)
Engineering firm Pieters Bouwtechniek Delft has designed many cantilevering elements in Compact Reinforced Composite over the past years. This material, often abbreviated as CRC, is an UHPFRC developed by Hi-Con Denmark and the material distinguishes itself from other concretes as it incorporates large volumes of steel fibres and reinforcement...
master thesis 2019
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Stap, Merijn (author)
Bridges are a crucial part of the dense Dutch highway network. Almost 50% of the current bridges are built between 1960 and 1980 for an intended service life of 50 years and thus they might reach the end of their lifetime in the near future. This strongly indicates that a large challenge can be expected regarding infrastructural replacement.<br/...
master thesis 2017
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Berendsen, P.P.S. (author)
Material properties of concrete have developed rapidly in the past fifteen years. With the advent of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) a new material has emerged which is; much stronger, stiffer and durable than conventional concrete. Nonetheless despite these promising developments and due the high material costs UHPFRC...
master thesis 2014
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De Geus, J.V. (author)
A parameter study to the most governing design aspects and geometry in trough- railway bridges and how the application of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) influence this.
master thesis 2014
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Vermeulen, B. (author)
The first part of this paper provided a brief overview of how UHPFRC is made and why it can achieve such high mechanical properties. At this moment UHPC can easily achieve compressive strengths of 200 MPa, which is about seven times higher than ordinary concrete. However the tensile strength remains normative for structural design. The flexural...
master thesis 2014
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