Results 21 to 30 of about 244,725 (256)

High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials [PDF]

open access: yes, 2020
This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material
Lee, Dongkyoung   +2 more
core   +1 more source

Ultra high performance concrete shear walls [PDF]

open access: yesE3S Web of Conferences, 2021
The history of the development of Ultra-High Performance Concrete (UHPC) shear walls and the current status of today’s research as well as the future development prospects are comprehensively collated. The analysis process and conclusive results of the present-day domestic and international research on UHPC shear walls are highlighted.
openaire   +1 more source

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

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

Ultra-High-Performance Concrete (UHPC): A State-of-the-Art Review

open access: yesMaterials, 2022
The interest of researchers in UHPC has increased over the past decade. It is crucial to understand the structural behavior of reinforced UHPC (R/UHPC) components under various loading conditions before they can be used as a replacement for conventional ...
R. Ullah   +4 more
semanticscholar   +1 more source

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

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

Ultra-High-Performance Concrete Shear Keys in Concrete Bridge Superstructures [PDF]

open access: yesMATEC Web of Conferences, 2019
Many existing bridges have adjacent girders that utilize grouted shear keys to transfer loads laterally across the superstructure. Cracking and leaking often cause degradation of the shear key and the girder.
Flores Elsy Y.   +3 more
doaj   +1 more source

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