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Showing 1 to 20 of 22 for “"Fibre-reinforced concrete"”.
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Flexural Behaviour of Steel Fibre Reinforced Concrete Tunnel Linings
The promotion of steel fibre reinforced concrete (SFRC) as a construction material for tunnel linings has prompted a number of researchers to focus on methods of evaluating their flexural strength and stiffness. This thesis presents the results of an experimental and numerical investigation of the …
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Investigations of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) Column
Ultra-high-performance concrete (UHPC) has attracted significant attention in recent decades due to its superior compressive strength and exceptional durability, while concerns have been raised due to the fact that inherent brittleness of concrete resulted in an explosive failure of UHPC. To extend …
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Numerical Modelling of Steel Fibre Reinforced Concrete Subjected to Fatigue Loading
Concrete dominates the construction industry because of its strength, durability, and versatility; however, it is weak when loaded in tension and thus susceptible to the formation of cracks when under tensile stresses. Steel Fibre Reinforced Concrete (SFRC) improves post-cracking behaviour through …
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Ultra High Performance Fibre Reinforced Concrete Spandrel Cladding Panels in Façade Applications
… panel design using Ultra High Performance Fibre Reinforced Concrete (UHPFRC) with Glass Fibre Reinforced Polymer (GFRP) reinforcing bars are load tested and compared to analytical calculations and the results of an elastic finite element analysis. Five panels are load tested, three …
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Behaviour of High- and Ultra-High Performance Fibre Reinforced Concrete Flexural Members
Concrete is a quasi-brittle material that increases in brittleness as the compressive strength increases and as such plain high-strength concrete always fails in an explosive manner. Incorporation of randomly distributed discrete non-metallic or metallic fibres into conventional concrete mixes has …
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Behaviour of ultra high performance fibre reinforced concrete subjected to static and impact loads
… led to the development of ultra-high strength concretes with remarkable strength, durability and toughness. Ultra-high performance fibre reinforced concrete (UHP-FRC) has recently emerged as an advanced cementitious material with the potential of enhancing the impact energy absorption capacity …
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Properties and performance of high strength fibre reinforced concrete by using steel and polypropylene fibres
Many reinforced concrete structures suffer severe degradation due to the effect from freezing and thawing, shrinkage and expansion, aggressive environment, earthquake and drastic increase of live loads. The most common sign of deterioration in concrete is cracking. Plain or unreinforced concrete is …
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The behaviour of steel fibre reinforced concrete material and its effect on impact resistance of slabs
Concrete structures are usually subjected to both static as a long term and dynamic as a short term loads. The impact resistance of plain concrete is low and that’s mainly due to a fairly low energy dissipating features and inadequate tensile strength. To compensate for the weak tensile properties …
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An experimental study and finite analysis of punching shear failure in steel fibre-reinforced concrete ground -suspended floor slabs
… the structural effect of using steel fibre-reinforcement on the punching shear behaviour of ground-suspended slabs with internal columns. The main objectives of this research were to develop a constitutive model for steel fibre-reinforcement (SFRC), to study experimentally the punching …
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An experimental investigation into the effectiveness of steel fibre-reinforced concrete relative to conventional mesh-reinforced concrete in thin shell construction
… an investigation into the suitability of steel-fibre reinforced concrete (SFRC) as a building material. The performance of the SFRC is gauged relative to conventional steel mesh-reinforced concrete. The report begins with the historical background of fibre-reinforcing, its development and …
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Bond Strength and Development Length of Sand-Coated GFRP Bars Spaced and Bundled in Normal Strength and Ultra-High-Performance Fibre-Reinforced Concrete
… length (Ld) of three sand- coated glass fibre-reinforced polymer (GFRP) bar sizes (#4, 5 and 8) embedded into ultra-high- performance fibre-reinforced concrete (UHPFRC) with 2% steel fibres. It also examines the Ld of sand-coated #5 GFRP bars bundled in two and three embedded into normal …
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A NEW PENETRATION APPARATUS FOR LOW SLUMP CONCRETE
Workability is an important property of concrete and its measurement in the field for low slump concrete is a problem. Hence, a new penetration apparatus was devised by K. W. Nasser to measure workability. This apparatus, which is convenient and simple to operate was used in this investigation. …
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The Fracture Toughness of Fibre Concretes
… on the application of Fracture Mechanics to concrete materials. In the experimental work, a study of the general properties of plain and fibre-reinforced concrete has been carried out with particular emphasis on Mode II as well as Model failure. A numerical study of the test specimens used in …
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Evaluation of the Flexural Response of Steel Reinforced UHP-FRC Beams Using Distributed Sensing
The interaction between ultra-high-performance fibre-reinforced concrete (UHP-FRC) and steel reinforcement significantly affects the displacement ductility of UHP-FRC beams in flexure, leading to a brittle failure mechanism due to crack localization. Previous studies faced limitations in fully …
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Modelling of ECC and SMA-Reinforced Concrete Members
… data of ECC flexural prisms and shear walls reinforced with ECC. Modelling was conducted using VecTor2, a FEA modelling program widely applied in literature and industry. The applicability of built-in models for fibre-reinforced concrete (FRC), a concrete classification that includes ECC, was …
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Utilization of coconut fibres and ropes as concrete reinforcement in mortar-free construction with novel interlocking blocks: Considering its application in earthquake resistant housing
… aim of the research is to develop natural fibre reinforced concrete structures, which can not only withstand earthquakes, but also are low cost and easy to construct. Natural fibres are cheap and locally available in many countries. For this study, coconut fibres were selected because of …
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Development of a Reusable Thin-Shell Concrete Flooring System
… of a lightweight and carbon-efficient concrete flooring system which enables disassembly, reuse, and reconfiguration, achieved by leveraging modern digital fabrication techniques and a funicular form. Inspired by the classical fan vault geometry, the segmented fan concrete shell …
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Evaluation of the Mechanical Strength of Bund Walls under the Catastrophic Failure of Storage Tanks via Fluid Structure Interaction
… of bund walls using Ultra-High Performance Fibre Reinforced Concrete (UHP-FRC). The investigation was carried out using the Fluid Structure Interaction (FSI) approach. InterFOAM solver in OpenFOAM software was used to model the multiphase flow of the sudden release of the fluid. The available …
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An investigation into marine biofouling and its influence on the durability of concrete sea defences
… and its influence on the durability of concrete sea defences using on-site and laboratory-based studies. The study was divided into three main phases namely: the surface analysis of armour concrete, the study of algal colonisation within the matrix and investigations into the presence of …
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Short-term and time-dependent flexural behaviour of steel fibre-reinforced reactive powder concrete
… the material and structural behaviour of a Steel-Fibre reinforced Reactive Powder Concrete (SF-RPC). The experimental program consisted of three phases. Phase 1 involved the development of a design mix for use throughout the remainder of the study. Phase 2 consisted of an in-depth investigation …
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