Results 21 to 30 of about 121,589 (304)

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

Modelling of autogenous healing in ultra high performance concrete [PDF]

open access: yesCement and Concrete Research, 2014
The restoration of ultra high performance concrete (UHPC) specimens due to the self-healing phenomenon was investigated in this paper. A hydro-chemo-mechanical model based on micro-mechanical observations was established. The aim was to evaluate the mechanical properties of the new healing products in order to describe the partial recovery of the ...
Hilloulin, Benoit   +3 more
openaire   +2 more sources

Spalling behavior and residual resistance of fibre reinforced Ultra-High performance concrete after exposure to high temperatures

open access: yesMateriales de Construccion, 2015
Experimental results of spalling and residual mechanical properties of ultra-high performance concrete after exposure to high temperatures are presented in this paper.
Ming-Xiang Xiong, J. Y. Richard Liew
doaj   +1 more source

Towards Efficient Use of Cement in Ultra High Performance Concrete

open access: yesNordic Concrete Research, 2021
This paper presents an investigation on substituting the cement content with an inert material, in a typical locally produced UHPC mix. A structured literature review was performed to enrichen the discussion and to benchmark the results towards already ...
Lande Ingrid, Thorstensen Rein Terje
doaj   +1 more source

Glued timber concrete composite walls using ultra-high-performance concrete

open access: yesActa Polytechnica CTU Proceedings, 2022
This paper gives a short introduction of the development of cross laminated timber (CLT) concrete composite walls with a glued connection. In the composite walls, prefabricated ultra-high-performance concrete (UHPC) lamellas replace timber lamellas at ...
Thomas Oberndorfer   +2 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

Modeling seismic performance of high-strength steel–ultra-high-performance concrete piers with modified Kent–Park model using fiber elements

open access: yesAdvances in Mechanical Engineering, 2016
The seismic performance of ultra-high-performance concrete–high-strength steel pier was studied using fiber elements, which are capable to model accurately elastic–plastic behavior of members with fibers of different material constitutive relations.
Zhen Wang   +3 more
doaj   +1 more source

Mechanical Properties of Ultra-High Performance Concrete (UHPC) and Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC) with Recycled Sand

open access: yesInternational Journal of Concrete Structures and Materials, 2023
Use of high-cost raw materials such as quartz sand can limit wider application of ultra-high performance concrete in concrete construction. In this experimental study, recycled sand was used to fabricate ultra-high performance concrete (UHPC) and ultra ...
Donguk Choi   +4 more
doaj   +1 more source

Uncovering the role of superplasticizer in developing nano-engineered ultra-high-performance concrete

open access: yesFrontiers in Materials, 2023
The effect of superplasticizer (SP) on the performance of ultra-high-performance concrete (UHPC) and ultra-high-performance fiber-reinforced concrete (UHPFRC) has been systematically investigated aiming to optimize the use of SP.
Lili Wang, Yitong Ma, Liangwei Li
doaj   +1 more source

Application of Ultra-High-Performance Concrete in Bridge Engineering: Current Status, Limitations, Challenges, and Future Prospects

open access: yesBuildings, 2023
Ultra-high-performance concrete (UHPC) is a form of cementitious composite that has been the most innovative product in concrete technology over the last three decades.
S. Abdal   +6 more
doaj   +1 more source

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