Results 31 to 40 of about 121,589 (304)

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 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

Sustainable construction through eco-efficient ultra-high performance concrete [PDF]

open access: yes, 2016
An innovative type of steel-fibre reinforced ultra-high performance concrete (UHPC), including its constituent materials and its mixing procedure, is reviewed in this paper.
Camões, Aires, Ferdosian, I.
core   +1 more source

Ultra-high-performance concrete: Impacts of steel fibre shape and content on flowability, compressive strength and modulus of rupture

open access: yesCase Studies in Construction Materials, 2022
The impact of three-shaped steel fibres (straight, hooked end, and corrugated) with varying steel fibre (SF) contents (0.75 %, 1.5 %, and 2.5 % by volume fraction) on the fresh and mechanical characteristics of ultra-high-performance concrete was ...
Bassam A. Tayeh   +3 more
doaj   +1 more source

Classification of Ultra-high Performance Concrete (UHPC)

open access: yesEuropean Journal of Engineering and Technology Research, 2021
Ultra-high performance concrete (UHPC) been an advanced concrete introduced as reactive powder concrete (RPC) over twenty years ago, is now being employed for use in the construction industry of some developed countries like China, Germany and United States of America.
A. S. J. Smith, G. Xu
openaire   +2 more sources

Corrosion-fatigue synergy in steel bridges: Mechanisms and mechanical degradation

open access: yesResults in Engineering
This study pioneers the investigation of asynchronous corrosion-fatigue coupling effects on structural steel degradation, addressing a critical gap in understanding synergistic damage mechanisms under combined environmental and mechanical stresses ...
Lizhen Huang   +6 more
doaj   +1 more source

A Review on Sugarcane Bagasse Ash which Enhance Properties of Ultra-High Performance Concrete and Usable for EFUHPC [PDF]

open access: yesE3S Web of Conferences
In this study we discus about sugarcane bagasse ash which improving mechanical properties of concrete, High Performance Concrete (HPC) and suitable for making Ecofriendly Ultra-High Performance Concrete (EFUHPC). Many ecofriendly materials like Sugarcane
Sharma Devendra Kumar, Ahamad Imran
doaj   +1 more source

Flexural Strength Evaluation of Reinforced Concrete Members with Ultra High Performance Concrete

open access: yesAdvances in Materials Science and Engineering, 2016
Flexural strength evaluation models for steel fiber reinforced ultra high strength concrete were suggested and evaluated with test results. Suggested flexural strength models were composed of compression stress blocks and tension stress blocks ...
Baek-Il Bae   +2 more
doaj   +1 more source

Concrete spall damage of UHPC slabs under contact detonation - An experimental investigation [PDF]

open access: yes, 2015
Concrete spallation is a typical brittle damage mode under close-in or contact explosions. Upon concrete spallation, a large number of fragments displace from the concrete surface with high speed and these fragments endanger the personnel and equipment ...
Hao, Hong, Li, Jun, Wu, Chengqing
core   +1 more source

Effect of Nanomaterial on the Properties of Ultra High Performance Concrete

open access: yesIraqi Journal of Industrial Research, 2021
In recent years, there is a great interest in many countries to use the limestone powder in produce concrete by the replacing it as a proportion of cement weight able to improving the properties of the concrete as well as this type of powder lead to the
Nada Mahdi Fawzi Aljalawi
doaj   +1 more source

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