Results 81 to 90 of about 244,725 (256)

Ultra-High Performance Concrete Overlays for Concrete Bridge Decks

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
With much of the world's infrastructure needing rehabilitation, new and more effective methods of repair are required to ensure that concrete structures can continue to perform adequately. This work investigates the potential for using locally produced ultra-high performance concrete (UHPC) as an overlay material to rehabilitate existing normal ...
Ahmed J. Al-Basha   +3 more
openaire   +1 more source

Mitigating autogenous shrinkage by means of superabsorbent polymers : effect on concrete properties [PDF]

open access: yes, 2017
(Ultra-)high performance concrete ((U)HPC) is very prone to autogenous shrinkage cracking. These cracks can create preferential pathways for the ingress of harmful substances which can facilitate the corrosion process of the steel reinforcement ...
De Meyst, Laurence   +5 more
core  

A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete [PDF]

open access: yes, 2016
An overall review of the structural behaviors of ultra-high-performance fiber-reinforced concrete (UHPFRC) elements subjected to various loading conditions needs to be conducted to prevent duplicate research and to promote its practical applications ...
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core   +1 more source

Flexible and stretchable electronics for wearable healthcare [PDF]

open access: yes, 2014
Measuring the quality of human health and well-being is one of the key growth areas in our society. Preferably, these measurements are done as unobtrusive as possible. These sensoric devices are then to be integrated directly on the human body as a patch
Bossuyt, Frederick   +7 more
core   +2 more sources

Precast Concrete Deck-to-Girder Connection using UHPC [PDF]

open access: yes, 2019
The implementation of ultra-high-performance concrete (UHPC) in bridge construction has been growing rapidly in the last two decades due to its excellent mechanical properties, workability, and durability.
Abo El-Khier, Mostafa, Morcous, George
core   +1 more source

High-volume fly ash ultra-high performance concret [PDF]

open access: yes, 2015
Ultra-high performance concrete (UHPC) is a kind of high-tech composite material which shows superb characteristics compared to other kind of concrete such as self-compactness, compressive strength higher than 150 MPa and exceptional durability ...
Camões, Aires, Ferdosian, Iman
core  

Influence of the type of fiber on the structural response and design of FRC slabs [PDF]

open access: yes, 2016
Most codes for the design of fiber reinforced concrete (FRC) structures are based on the experience achieved throughout the years with steel fibers. Recent codes include the possibility of applying the same considerations for FRC structures with plastic ...
Aguado de Cea, Antonio   +4 more
core   +4 more sources

Finite Element Modeling of the Transition Zone between Aggregat and Mortar in Concrete [PDF]

open access: yes, 2012
Visual observations to the Interfacial Transition Zone (ITZ) between aggregate and mortar in concrete showed that this area differs significantly to the bulk mortar, further away from the ITZ.
Han , Ay Lie   +2 more
core  

Development of Intelligent Prefabs Using IoT Technology to Improve the Performance of Prefabricated Construction Projects [PDF]

open access: yes, 2019
Prefabrication (PC) projects have many advantages, such as cost and energy savings and waste reduction. However, some problems still exist that hamper the development of prefabrication projects. To improve PC project performance and advance innovation in
Liu, Zhansheng   +2 more
core   +1 more source

How dense can one pack spheres of arbitrary size distribution?

open access: yes, 2012
We present the first systematic algorithm to estimate the maximum packing density of spheres when the grain sizes are drawn from an arbitrary size distribution. With an Apollonian filling rule, we implement our technique for disks in 2d and spheres in 3d.
Andrade Jr., José S.   +3 more
core   +1 more source

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