Results 71 to 80 of about 149,772 (355)

Sustainability based-approach to determine the concrete type and reinforcement configuration of TBM tunnels linings. Case study: Extension line to Barcelona Airport T1 [PDF]

open access: yes, 2016
Fibre-reinforced concrete (FRC) is a suitable alternative to the traditional reinforced concrete used in the manufacture of precast segments used to line tunnels excavated with a tunnel boring machine (TBM). Moreover, its use as a structural material has
Aguado de Cea, Antonio   +3 more
core   +3 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Performance of a multi-layer aligned steel fibre reinforced concrete beam: A preliminary investigation towards 3D printing

open access: yesCase Studies in Construction Materials
Fibre alignment and 3D concrete printing have become increasingly popular in research and industry while these technologies face a lack of deep integration.
Xiaoteng Li, Moray Newlands, Rod Jones
doaj   +1 more source

Do polymer fibres affect the distribution of steel fibres in hybrid fibre reinforced concretes?

open access: yesConstruction 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
openaire   +3 more sources

Development of raised access floor panel by optimisation techniques [PDF]

open access: yes, 2015
Raised access floor panels currently have a chipboard core and are encapsulated within thin layer of galvanised steel. Two key problems with these raised access floor panels are that they are heavy because of the chipboard and expensive, as the cost of ...
Cheah, HC
core  

Range-resolved signal processing for fibre segment interferometry applied to dynamic long-gauge length strain sensing [PDF]

open access: yes, 2015
A range-resolved interferometric signal processing technique using sinusoidal optical frequency modulation is applied to fibre segment interferometry. Here, six optical fibre segments of gauge length 12.5 cm are used as interferometric strain sensors and
Charrett, Thomas O. H.   +4 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Mechanical and fracture behaviour of micro steel fibre-reinforced fly ash-based geopolymer paste containing nano CaCO3

open access: yesJournal of Taibah University for Science, 2021
The present study has investigated the mechanical properties of micro steel fibre-reinforced fly ash-based geopolymer pastes by adding different contents of nano CaCO3.
Thamer Alomayri
doaj   +1 more source

POSITIVE INTERACTION OF INDUSTRIAL AND RECYCLED STEEL FIBRES IN FIBRE REINFORCED CONCRETE

open access: yesJournal of Civil Engineering and Management, 2014
In line with current ”green” transport initiatives, Croatia plans to build over the next investment period a high speed railway line which will connect central Croatia and its capital with coastal regions of the country. According to design documents, the track system will be built using ballastless concrete solutions.
Bjegovic, Dubravka   +4 more
openaire   +4 more sources

Influence of Fibre Geometry on the Fracture of Steel Fibre Reinforced Concrete

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Steel fibre reinforced concrete (SFRC) is used in various structural applications such as slabs, pavements, hydraulic structures, tunnel linings etc., due to their ability to limit the initiation and propagation of cracks, thereby improving the tensile load-carrying capacity and toughness.
Komathi Murugan   +2 more
openaire   +1 more source

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