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The Cracking and Serviceability Behavior of Ultra-High-Performance Fiber-Reinforced Concrete

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: closed (20 December 2023) | Viewed by 1067

Special Issue Editor


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Guest Editor
Architecture and Urbanism Faculty, UTE University, Av. Rumipamba S/N and Av. Bourgeois, Quito 170147, Ecuador
Interests: fiber-reinforced concrete; UHPFRC; concrete technology; serviceability behavior of structures; materials

Special Issue Information

Dear Colleagues,

This Special Issue of the journal Materials focuses on the cracking and serviceability behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC). UHPFRC is an innovative and high-performance material that offers superior mechanical properties, durability, and resistance to various forms of deterioration. This Special Issue aims to explore ongoing research on UHPFRC serviceability and cracking behavior.

The articles presented in this Special Issue demonstrate advancements in the understanding of crack formation and propagation in UHPFRC and provide insights into the serviceability and long-term performance of UHPFRC structures. The topics discussed include fundamental investigations of UHPFRC materials, modeling of UHPFRC structures, evaluation of crack behavior, and analysis of structural behavior under different loading conditions. The findings presented in this Special Issue provide valuable information for engineers and researchers to optimize the use of UHPFRC in practical applications.

Dr. Majid Khorami
Guest Editor

Manuscript Submission Information

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Keywords

  • UHPFRC
  • cracking
  • serviceability
  • material composition
  • experimental testing
  • numerical simulation
  • durability
  • sustainability

Published Papers (1 paper)

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Research

16 pages, 4718 KiB  
Article
Effect of Polyoxymethylene Fiber on the Mechanical Properties and Abrasion Resistance of Ultra-High-Performance Concrete
by Lixin Tan, Jun Yang, Chuanxi Li, Gaozhan Zhang, Qingjun Ding, Daosheng Sun and Yongyuan Zhang
Materials 2023, 16(21), 7014; https://doi.org/10.3390/ma16217014 - 02 Nov 2023
Cited by 3 | Viewed by 820
Abstract
It is necessary to prepare marine UHPC with synthetic fibers instead of steel fibers, owing to the corrosion risk of steel fibers in marine environments. Currently, the performance of UHPC prepared with different types of fibers has not been comparatively investigated. This work [...] Read more.
It is necessary to prepare marine UHPC with synthetic fibers instead of steel fibers, owing to the corrosion risk of steel fibers in marine environments. Currently, the performance of UHPC prepared with different types of fibers has not been comparatively investigated. This work prepared UHPC with steel fiber, polyoxymethylene (POM) fiber, polypropylene (PP) fiber, and polyvinyl alcohol (PVA) fiber. The effects of different fibers on the mechanical properties, impact, and abrasion resistance of UHPC were studied and compared. The results showed that increasing POM fiber can increase the mechanical strength, flexural toughness, impact, and abrasion resistance of UHPC. When its content reaches 2%, the adsorbed-in-fracture energy and abrasion strength of UHPC are 2670 J and 105 h/(kg/m2), respectively. At the same fiber content, POM fiber-reinforced UHPC shows better mechanical strength, toughness, and impact- and abrasion-resistance than the polypropylene (PP)- and polyvinyl alcohol (PVA)-fiber-reinforced UHPCs. Microstructure investigation found that PP fiber has the weakest binding with UHPC paste, which would directly pull out of the matrix under external tensile loading. This weak connection limits the strengthening and toughening effect on the UHPC. PVA fiber has an excellent interfacial connection with the UHPC paste. However, the low tensile strength of PVA fiber limits the strength and toughness of UHPC. POM fiber has a high tensile strength and can absorb tensile loading through debonding, fracture, and tearing. The fracture interface of POM fiber is large, indicating its significant role in strengthening and toughening the UHPC. Full article
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