Results 31 to 40 of about 957,059 (286)
Fibre orientation and distribution in steel fibre reinforced concrete
, 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
Journal of Building Materials and StructuresThis 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
International 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
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Materiales 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
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The effect of polypropylene fibres within concrete with regard to fire performance in structures [PDF]
, 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 ...
Richardson, Alan, Dave, Urmil V.
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Do polymer fibres affect the distribution of steel fibres in hybrid fibre reinforced concretes?
Construction and Building Materials, 2019 Abstract This study investigates the effects of the hybrid use of different types of fibres in terms of their orientations, volume and hybridisation properties on the mechanical and fracture characteristics of self-compacting fibre reinforced concrete (FRC).
Burcu Akcay, Dogac S. Ozsar
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Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Synthetic fibres and steel fibres in concrete with regard to bond strength and toughness [PDF]
, 2009 The ability of fibre reinforced concrete composites to absorb energy has long been recognised as one of the most important benefits of the incorporation of fibres into plain concrete” (Golpalaratham and Gettu 1995).
Landless, Sean, Richardson, Alan
core
Effect of steel fibres on concrete behavior in 2D and 3D simulations using lattice model
Archives 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
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Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential
FEBS Letters, EarlyView.Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta +3 more
wiley +1 more source