Results 61 to 70 of about 4,273 (233)
Design of overpass in km 164,500 of the motorway D1 [PDF]
Tématem diplomové práce je návrh nadjezdu přes dálnici D1 v km 164,500. Byly vypracovány 4 varianty mostu. Pro podrobný návrh byla vybrána varianta vzpěradlového mostu ze tří prefabrikovaných dílců z UHPFRC.
Benešová Lenka
core
Vacuum mixing technology to improve the mechanical properties of ultra-high performance concrete [PDF]
Ultra-high performance concrete is an important evolution in concrete technology, enabled by the combination of a good particle packing density, a suitable mixing procedure and compatible binders and admixtures.
De Schutter, Geert, Dils, Jeroen
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Abstract Ultra‐high‐performance concrete (UHPC) becomes a promising composite material in structural concrete due to its exceptional mechanical and durability properties. However, the performance and damage characteristics of UHPC under different loading scenarios remain a subject of ongoing research.
Kefiyalew Zerfu +2 more
wiley +1 more source
Steel fibers enhance the flexural strength, the compressive strength and the ductility of untra-high performance concrete, predicting the flexural strength and the compressive strength of ultra-high performance steel fiber reinforced concrete (UHPFRC ...
Dechao Qu, Xiaoping Cai, Wei Chang
doaj +1 more source
In this study, the effects of calcined diatomaceous earth (CDE), polypropylene fiber (PF), and glass fiber (GF) on the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC) were observed, and a total of 33 UHPFRC mixtures ...
Hasan Muttaqin +3 more
doaj +1 more source
Limit analysis and design recommendations for fiber‐reinforced concrete subjected to shear
Abstract It is widely recognized in both research and practice that fibers have great potential to partially, or completely, substitute conventional transverse reinforcement in webs of girders subjected to moderate shear forces. However, despite extensive research in recent years, there is still no consensus in the research community on the ...
Nicola Gehri +3 more
wiley +1 more source
Analysis of the tensile fracture properties of ultra-high-strength fiber-reinforced concrete with different types of steel fibers by X-ray tomography [PDF]
This study is concerned with the analysis of the tensile properties of an ultra-high-strength fiber-reinforced concrete manufactured with short and long steel fibers.
Ariza Moreno, María del Pilar +4 more
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Abstract This paper presents a comprehensive study on the development of a cost‐effective, high‐performance fiber reinforced concrete (HPFRC) for the construction of a 60 m‐span U‐girder roadway bridge without stirrups in the webs, meeting the design requirements of fck ≥ 100 MPa and the post‐cracking flexural strength fR3k ≈ 8–10 MPa.
Rafael Ruiz +4 more
wiley +1 more source
One of the problems experienced by reinforced concrete (RC) structures, whether a mistake at the design phase or a change in building use, is an overload.
Alasmari H. A.
doaj +1 more source
Strain hardening fiber reinforced cement composites for the flexural strengthening of masonry elements of ancient structures [PDF]
To assess the strengthening ability of a strain hardening cementitious composite (SHCC), a layer of SHCC was applied to masonry beams subjected to bending.
Barros, Joaquim A. O. +2 more
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