Results 31 to 40 of about 21,822,919 (192)

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

Development of high performance concrete using combinations of mineral admixtures. [PDF]

open access: yes, 1995
Cement replacement materials are by-products used to produce high performance concrete. Published data on the effects of combinations of mineral admixtures in concrete on the microstructural and performance-related properties under different ...
Darwish, Abdulhanan A., Darwish, A.
core   +6 more sources

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

Study on dimensional stability of ultra-high performance concrete (UHPC) [PDF]

open access: yes, 2020
Ultra-high performance concrete (UHPC), a new cement-based material, has character of superior mechanical properties and excellent durability. Especially, it possesses compressive strength higher than 150 MPa, which is approximately 3 times as that of ...
Wu, Linmei
core  

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

On the Bond Behaviour between Double-Wall Elements made of HPC/UHPC and ordinary cast-in-situ Concrete

open access: yes, 2016
By working with high performance concrete (HPC) or ultra-high performance concrete (UHPC) it is possible to reduce the wall thicknesses of prefabricated double-wall elements to a minimum. A disadvantage of these high performance materials is the smooth
Kromoser, Benjamin   +2 more
core   +4 more sources

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

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

Response of the ultra high performance concrete under dynamic compressive loading

open access: yesActa Polytechnica CTU Proceedings, 2023
Ultra high performance concrete is a modern cementitious material which exhibits excellent mechanical properties such as damage tolerance, fracture toughness and durability.
Nela Krčmářová   +3 more
doaj   +1 more source

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