Advances in Ultra-High-Performance Concrete (UHPC) and UHPC Structures

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Materials, and Repair & Renovation".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 1043

Special Issue Editor


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Guest Editor
Durham School of Architecture Engineering and Construction, College of Engineering, University of Nebraska-Lincoln, 1110 South 67th St., Omaha, NE 68182, USA
Interests: design and construction of reinforced and prestressed concrete; bridge engineering; infrastructure management; self-consolidating concrete (SCC); ultra-high performance concrete (UHPC)

Special Issue Information

Dear Colleagues,

Aging buildings and infrastructure need immediate actions to repair, strengthen, or replace due to either structural defeciency or functional obsolescence. Ultra-high-performance concrete (UHPC) is a fiber-reinforced, cementitious composite material with mechanical and durability properties that far exceed those of conventional concrete materials. UHPC has shown an immense potential as a repair/strengthening material due to its high workability, excellent compressive, tensile, and bond strength, and remarkable resistance to ingress of water and chemicals. This Special Issue highlights the latest advances in developing UHPC mixtures for the repair and strengthening of buildings and structures made of structural steel and/or reinforced/prestressed concrete. UHPC can outperform conventional materials in the repair/strengthening of beams, columns, slabs, and joints. The Special Issue considers articles on material properties, construction procedures, analysis methods, experimental investigations, and case studies.

Prof. Dr. George Morcous
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Keywords

  • infrastructure deterioration
  • repair and rehabilitation
  • composite sections
  • early age properties
  • concrete jacketing
  • girder end repair
  • overlay protection

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Published Papers (1 paper)

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Research

24 pages, 5291 KiB  
Article
Statistical Evaluation and Reliability Analysis of Interface Shear Capacity in Ultra-High-Performance Concrete Members
by Bipul Poudel, Philippe Kalmogo and Sriram Aaleti
Buildings 2024, 14(10), 3064; https://doi.org/10.3390/buildings14103064 - 25 Sep 2024
Viewed by 680
Abstract
The use of UHPC as an overlay and repair material in the bridge industry has been increasing recently. Ensuring sufficient interface shear strength between the substrate and UHPC is necessary for adequate performance and the structural integrity of the composite section. Due to [...] Read more.
The use of UHPC as an overlay and repair material in the bridge industry has been increasing recently. Ensuring sufficient interface shear strength between the substrate and UHPC is necessary for adequate performance and the structural integrity of the composite section. Due to the lack of structural design code for UHPC members, designers often rely on experimental data developed by researchers or on existing conventional concrete design code to predict the interface shear capacity of sections containing UHPC. The various test methods currently used to quantify the interface shear strength oftentimes produce different results. The objectives of this paper are to create a database of the studies on the interface shear strength of UHPC members available in the literature and carry out a statistical assessment. Moreover, a reliability analysis is conducted on the collected experimental database, and the probability of failure is determined for UHPC–concrete, UHPC–UHPC, and monolithic UHPC interfaces. The paper also investigates the dependence of the reliability index on two different test methods used for interface shear capacity prediction. Additionally, a simpler interface shear capacity model with readily determined parameters is proposed for the monolithic UHPC interface, with a better reliability index compared to current design specification. Full article
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