Results 21 to 30 of about 4,273 (233)

Study on Mechanical Performance of Prestressed UHPFRC U-Beam Bridges

open access: yesAdvances in Civil Engineering, 2021
The forms of U-shaped UHPFRC beams have not been investigated for the highway footbridge. Compared with the traditional section forms, the U-shaped UHPFRC beams can reduce the material consumption under the condition of providing the same bearing ...
Mengying Liu   +3 more
doaj   +1 more source

Effects of tension stiffening and shrinkage on the flexural behavior of reinforced UHPFRC beams

open access: yesCase Studies in Construction Materials, 2021
This paper presents a study on the flexural behavior of Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC) beams, which included conventional reinforcing bars.
Eduardo J. Mezquida-Alcaraz   +3 more
doaj   +1 more source

Mechanical and fracture properties of a self-compacting version of CARDIFRC Mix II [PDF]

open access: yes, 2017
CARDIFRC is the trade name of two main groups of ultra-high performance fibre-reinforced concrete mixes – Mixes I and II – differing primarily in the maximum size of quartz sand used (0.6 mm in Mix I, and 2 mm in Mix II). In this paper, the conversion of
Al-Azzawi, Bakr S.   +1 more
core   +2 more sources

Effectiveness of flange plates on torsional behaviors of ultra-high-performance fiber-reinforced concrete hollow beams

open access: yesDevelopments in the Built Environment, 2023
This study investigates the effectiveness of flanges with various types of stirrup and cross-sectional dimensions on the torsional behaviors of ultra-high-performance fiber-reinforced concrete (UHPFRC) hollow beams.
Jiale Zhou   +4 more
doaj   +1 more source

Micro X-ray computed tomography image-based two-scale homogenisation of ultra high performance fibre reinforced concrete [PDF]

open access: yes, 2017
A two-scale analytical-numerical homogenisation approach is developed to predict effective elastic properties of ultra high performance fibre reinforced concrete considering distribution of pore sizes acquired from 3D micro X-ray computed tomography ...
Abrishambaf   +55 more
core   +2 more sources

The impact of utilizing UHPFRC in beam-column joints with different patterns of transverse reinforcement

open access: yesFracture and Structural Integrity, 2023
This research studies and assesses the possibility of employing UHPFRC in exterior beam-column joints (BCJs). Eight specimens with various concrete material characteristics and steel reinforcing details are cast and examined under repeated loads. Normal
Ayman Abdo   +3 more
doaj  

Effect of Curing Conditions on the Shrinkage of Ultra High-Performance Fiber-Reinforced Concrete

open access: yesAdvances in Civil Engineering, 2018
The effect of curing conditions on the early age and long-term shrinkage of ultra high-performance fiber-reinforced concrete (UHPFRC) was systematically studied.
Song Han   +4 more
doaj   +1 more source

Behavior of RC beams strengthened in shear with ultra-high performance fiber reinforced concrete (UHPFRC)

open access: yesMATEC Web of Conferences, 2018
This paper investigates the behavior of RC beams strengthened in shear with UHPFRC. In order to ensure high quality and facilitate the strengthening process on site applications, it has been considered to apply UHPFRC as a plate pasted on concrete using ...
Sakr Mohammed A.   +3 more
doaj   +1 more source

Dowels effectiveness investigation between ultra high performance fiber reinforced concrete and reinforced concrete

open access: yesActa Polytechnica CTU Proceedings, 2022
In the present study, the performance of Reinforced Concrete (RC) beams which were strengthened with Ultra High Performance Fiber Reinforced Concrete (UHPFRC) and dowels at the interface was investigated. RC beams with a length of 2.2 m strengthened with
Spyridon A. Paschalis   +1 more
doaj   +1 more source

Advanced Study of Columns Confined by Ultra-High-Performance Concrete and Ultra-High-Performance Fiber-Reinforced Concrete Confinements

open access: yesFibers, 2023
The need for concrete with ‘super’ strength and ‘super’ ductility for greater sustainability has been answered by the existence of ultra-high-performance concrete (UHPC) and ultra-high-performance fiber-reinforced concrete (UHPFRC). Over the last decades,
Rr. M. I. Retno Susilorini   +1 more
doaj   +1 more source

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