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Applied Sciences
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Mechanical and Structural Behavior of Fiber-Reinforced Concrete
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Mechanical and Structural Behavior of Fiber-Reinforced Concrete

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: 30 July 2024 | Viewed by 1098

Special Issue Editor

Prof. Dr. Rui Neves

E-Mail Website
Guest Editor
Polytechnic Institute of Setúbal, Barreiro Technology School, 2839-001 Lavradio, Portugal
Interests: durability of structural materials; rheology of cementitious composites; reliability and numerical analysis; sustainable structures; development of new structural materials; textile reinforced concrete; fiber-reinforced concrete
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The research on fiber-reinforced concrete (FRC) goes back a long way. It started in the early 1900s and addressed several types of fibers, enabling the improvement of fiber distribution within the concrete, the enhancement of fiber geometry, the publication of design guides and the broadening of the fields of application. Nevertheless, researchers and engineers continue to explore new fiber materials and mix design strategies to push the boundaries of what FRC can achieve in terms of strength, durability, and sustainability.

This Special Issue of Applied Sciences welcomes studies focusing on the ongoing efforts in the research of the mechanical and structural performance of FRC. This includes novel applications of FRC beyond traditional construction, such as 3D printing, additive manufacturing, and architectural design possibilities; FRC design and performance prediction based on artificial intelligence; comprehensive cost–benefit analyses to evaluate the economic advantages of using FRC; the environmental impact of FRC, considering factors such as embodied energy, carbon footprint, and sustainable sourcing of fibers; fiber reinforced recycled aggregate concrete; validation of FRC performance in real-world applications; contributions to the refinement and development design codes and standards specific to FRC; studies on the effectiveness of blending different fiber types and combinations in FRC and its optimization; and the development of methods to ensure the most efficient fiber orientation within the concrete matrix, amongst others.

Prof. Dr. Rui Neves
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.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fiber-reinforced concrete
  • mechanical properties
  • structural behavior
  • tensile strength
  • flexural strength
  • impact resistance
  • ductility
  • toughness
  • fiber types
  • fiber orientation
  • standards and guidelines
  • sustainability
  • fracture mechanics
  • structural integrity
  • cost–benefit analysis

Published Papers (2 papers)

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Research

11 pages, 1316 KiB  
Article
Performance of Fly-Ash- and Cement-Bound Granular Mixtures with Dispersed Fiber Reinforcement—A Case Study
by Anna Chomicz-Kowalska and Krzysztof Maciejewski
Appl. Sci. 2024, 14(6), 2618; https://doi.org/10.3390/app14062618 - 21 Mar 2024
Viewed by 400
Abstract
This paper investigates the effects of incorporating dispersed fibrous reinforcement in hydraulically bound granular 0/16-mm mixtures. The evaluated fibrous reinforcement comprised a mixture of polypropylene and alkali-resistant glass fibers in a 1:2 weight ratio. The fibrous reinforcement was added to the mixtures in [...] Read more.
This paper investigates the effects of incorporating dispersed fibrous reinforcement in hydraulically bound granular 0/16-mm mixtures. The evaluated fibrous reinforcement comprised a mixture of polypropylene and alkali-resistant glass fibers in a 1:2 weight ratio. The fibrous reinforcement was added to the mixtures in amounts of 0.05% and 0.10% by weight. The prepared mixtures utilized 1% of CEM II/B-V 32.5 R Portland cement together with 3.5%, 7%, and 14% of fly ash, characterized by a high content of reactive calcium oxide. It was found that the fibrous additives had only a small effect on the maximum dry densities and virtually none on the optimum moisture contents of the mixtures. The use of the fiber mix significantly improved the compressive strength of the reinforced samples resulting after 42 days of curing, with a performance comparable to a reference mixture bound with 8% of Portland cement. The addition of fibrous reinforcement increased the indirect tensile strength of the mixtures by up to 300%, resulting in a performance similar to that of a reference mixture with 5% of Portland cement. It was found that the use of this particular fibrous reinforcement significantly improved the performance of predominantly fly-ash-bound granular mixtures, allowing the reduction in cement content used in this type of material. Full article
(This article belongs to the Special Issue Mechanical and Structural Behavior of Fiber-Reinforced Concrete)
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25 pages, 7064 KiB  
Article
Nonlinear Semi-Numeric and Finite Element Analysis of Three-Point Bending Tests of Notched Polymer Fiber-Reinforced Concrete Prisms
by Žiga Unuk and Milan Kuhta
Appl. Sci. 2024, 14(4), 1604; https://doi.org/10.3390/app14041604 - 17 Feb 2024
Viewed by 426
Abstract
A nonlinear semi-numeric and finite element analysis of three-point bending tests of notched polymer fiber-reinforced concrete prisms was performed. The computational and experimental results were compared in terms of the load-displacement behavior. The vertical midspan displacement and the crack mouth opening displacement results [...] Read more.
A nonlinear semi-numeric and finite element analysis of three-point bending tests of notched polymer fiber-reinforced concrete prisms was performed. The computational and experimental results were compared in terms of the load-displacement behavior. The vertical midspan displacement and the crack mouth opening displacement results were considered. The nonlinear semi-numeric computational procedure involved the moment-curvature relation, calculated by considering the constitutive material law from the fib Model Code for Concrete Structures 2010, and considered a plastic hinge mechanism to simulate the cracked region behavior. Two sets of tensile mechanical properties were considered for the constitutive material law: back-calculated (by an inverse analysis) tensile strength properties from the experimental results, and tensile strength properties calculated by simplified expressions from the fib Model Code for Concrete Structures 2010. Other mechanical properties were determined by additional compressive tests and standard relations for the dependency of various mechanical properties on the concrete compressive strength. The nonlinear finite element analysis incorporated the Menetrey-Willam material model to simulate the fiber-reinforced concrete behavior. The nonlinear semi-numeric analysis load-displacement results based on the back-calculated tensile strength properties relatively accurately matched with the experimental results, whereas the nonlinear semi-numeric analysis load-displacement results based on tensile strength properties calculated by simplified expressions from the fib Model Code for Concrete Structures 2010 and the nonlinear finite element analysis load-displacement results showed certain shortcomings. Full article
(This article belongs to the Special Issue Mechanical and Structural Behavior of Fiber-Reinforced Concrete)
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