Results 31 to 40 of about 97,033 (354)

Post-cracking tensile behaviour of steel-fibre-reinforced roller-compacted-concrete for FE modelling and design purposes [PDF]

open access: yes, 2017
Fracture of steel-fibre-reinforced-concrete occurs mostly in the form of a smeared crack band undergoing progressive microcracking. For FE modelling and design purposes, this crack band could be characterised by a stress-strain (σ-ε) relationship.
Alexander   +8 more
core   +4 more sources

INVESTIGATING THE FEASIBILITY OF USING RECYCLED FIBRES INSTEAD OF INDUSTRIAL FIBRES IN SHOTCRETE

open access: yesRudarsko-geološko-naftni Zbornik
Shotcrete is one of the standard systems used in the tunnelling industry, including cement, sand, water, and additives. Adding fibres to shotcrete is a method to enhance its mechanical properties.
Shahla Miri Darmarani   +3 more
doaj   +1 more source

Pullout Behaviour of Different Types of Steel Fibres Embedded in Magnesium Phosphate Cementitious Matrix

open access: yesInternational Journal of Concrete Structures and Materials, 2019
A series of pullout tests were conducted to investigate the interface bond properties of seven types of steel fibres embedded in the magnesium phosphate cementitious matrix.
Hu Feng   +5 more
doaj   +1 more source

Recent advances in structural fibre-reinforced concrete focused on polyolefin-based macro-synthetic fibres

open access: yesMateriales de Construccion, 2020
Fibre-reinforced concrete (FRC) allows reduction in, or substitution of, steel-bars to reinforce concrete and led to the commonly named structural FRC, with steel fibres being the most widespread.
M. G. Alberti   +3 more
doaj   +1 more source

Fibre orientation and distribution in steel fibre reinforced concrete

open access: yes, 2023
The structural performance of steel fibre reinforced concrete (SFRC) composites, including ultra-high-performance concrete (UHPC), is sensitive to the orientation and distribution of fibres achieved during casting. Fibre distribution resulting from a concrete flow during casting is generally non-uniform, biased, and challenging to determine.
openaire   +2 more sources

Structural Performance of Reinforced Concrete Beams with Steel Fibres as Secondary Reinforcement: Experimental and Pre-peak Numerical Modelling

open access: yesJournal of Building Materials and Structures
This research consists of an experimental and a numerical investigation into improving the structural performance of reinforced concrete (RC) beams by incorporating hooked-end steel fibres.
Hadjer Belkadi   +2 more
doaj   +1 more source

Effect of steel fibres on concrete behavior in 2D and 3D simulations using lattice model

open access: yesArchives of Mechanics, 2010
Quasi-static simulations of a concrete behaviour with steel fibres under uniaxial tension were carried out using a discrete irregular lattice model. Fibrous concrete was described at a meso-scale as a three-phase material composed of aggregate, cement ...
J. Kozicki, J. Tejchman
doaj   +1 more source

The effect of polypropylene fibres within concrete with regard to fire performance in structures [PDF]

open access: yes, 2008
Purpose – The purpose of this paper is to examine the effect of various polypropylene fibre additions (types and volume) to concrete with regard to explosive spalling when subject to high temperatures similar to those experienced in building or tunnel ...
Alan Richardson   +2 more
core   +1 more source

Heat exposure tests on various types of fibre mortar

open access: yes, 2011
International audienceThe advantage of steel fibres in cement based materials vis-à -vis mechanical reinforcement is widely recognized in the field of construction.
Ezziane, Mohammed   +3 more
core   +3 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

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