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Buildings
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Application and Durability of Composite Materials in Construction Engineering
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Application and Durability of Composite Materials in Construction Engineering

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

Deadline for manuscript submissions: 20 September 2024 | Viewed by 3885

Special Issue Editors

Prof. Dr. Pierluigi Colombi

E-Mail Website
Guest Editor
Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, 20133 Milan, Italy
Interests: FRP; FRCM; CRM; TRM; strengthening; durability; fatigue; bond; fracture mechanics; existing structures
Dr. Angelo Savio Calabrese

E-Mail Website
Guest Editor
Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, 20133 Milan, Italy
Interests: FRP; FRCM; CRM; TRM; strengthening; durability; fatigue; bond; fracture mechanics; existing structures

Special Issue Information

Dear Colleagues,

It is with great pleasure that we announce the new Special Issue of Buildings,  entitled "Application and Durability of Composite Materials in Construction Engineering".

You are warmly invited to submit your contribution to this Special Issue on the topic of composite materials for structural applications, involving both organic (FRP) and inorganic (FRCM, TRM, SRG, CRM) matrix composites. The Special Issue welcomes original research articles, case studies and literature reviews on the use of composite materials either as a method for externally bonded strengthening for existing structures or as internal reinforcements of reinforced concrete elements. The application of these materials has become, nowadays, a common practice in construction engineering; however, some aspects inherent to the design of their applications and their long-term behaviour are still under investigation in the scientific community.

Contributions to this Special Issue can include, but are not limited to, topics related to the application of externally bonded and internal composite reinforcements that are investigated from an analytical, numerical and experimental point of view.

In particular:

  • Static and fatigue behaviour;
  • Bond behaviour;
  • Design;
  • Durability and long-term behaviour.

We look forward to receiving your submissions.

Prof. Dr. Pierluigi Colombi
Dr. Angelo Savio Calabrese
Guest Editors

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. Buildings is an international peer-reviewed open access monthly 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 2600 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.

Published Papers (4 papers)

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Research

18 pages, 5760 KiB  
Article
A Simplified Analytical Model for FRP-Strengthened Curved Brittle Substrates Using the Multi-Linear Bond-Slip Law
by Yu Yuan and Gabriele Milani
Buildings 2023, 13(10), 2579; https://doi.org/10.3390/buildings13102579 - 12 Oct 2023
Viewed by 604
Abstract
The utilization of fiber-reinforced polymer (FRP) composites for building reinforcement has gained widespread acceptance. However, the bond behavior between externally applied composites and strengthened substrates, which are crucial for system efficacy, has primarily focused on flat surfaces. Yet, the challenge of curved substrates, [...] Read more.
The utilization of fiber-reinforced polymer (FRP) composites for building reinforcement has gained widespread acceptance. However, the bond behavior between externally applied composites and strengthened substrates, which are crucial for system efficacy, has primarily focused on flat surfaces. Yet, the challenge of curved substrates, common in masonry arches and vaults, remains less explored. This study introduces a classical analytical model addressing the bond behavior between FRP plates and curved substrates. This classical approach is structured upon a simplified model that concentrates all the non-linearities of the FRP–substrate interface. The interface is described through a universal multi-linear stress–slip relationship, with the influence of the curved substrate being considered by the normal stress that impacts the interface law. Closed-form solutions for distinct bond-slip law stages are derived and verified against the previous study. Through comparisons with existing experimental data and simulations, this approach is able to predict the maximum load, the trends of the global load-slip curves, and give insights into detailed local behavior. Additionally, the exploration of employing neural networks for determining the interface law exhibits promising outcomes. Full article
(This article belongs to the Special Issue Application and Durability of Composite Materials in Construction Engineering)
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25 pages, 14511 KiB  
Article
Residual Properties of Fibre Grids Embedded in Cementitious Matrices after Exposure to Elevated Temperatures
by Pengliang Yang and Theofanis Krevaikas
Buildings 2023, 13(8), 1900; https://doi.org/10.3390/buildings13081900 - 26 Jul 2023
Viewed by 798
Abstract
The use of fabrics in the form of grids embedded in cementitious matrices—usually termed as textile-reinforced mortar, fiber-reinforced cementitious matrix, or textile-reinforced concrete—demonstrate a more stable performance in elevated temperature conditions compared with fiber-reinforced polymers. This study investigated the residual tensile properties of [...] Read more.
The use of fabrics in the form of grids embedded in cementitious matrices—usually termed as textile-reinforced mortar, fiber-reinforced cementitious matrix, or textile-reinforced concrete—demonstrate a more stable performance in elevated temperature conditions compared with fiber-reinforced polymers. This study investigated the residual tensile properties of bare yarns and fabrics in the form of grids embedded in a cementitious mortar after exposure to 100 °C, 200 °C, and 300 °C. Three different coated fabric textiles were used as reinforcement: carbon, basalt, and glass. Additionally, scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermos-gravimetric analysis (TGA) were conducted to evaluate potential changes in the internal structure of the fibers and the mortar. The cracking stress, the tensile strength, and the ultimate strain of the composite specimens were increased after exposure to 100 °C, while only carbon and glass fiber grids retained their effectiveness up to 200 °C. At 300 °C, the coupons reinforced with carbon and basalt fibers deteriorated rapidly. Only the glass counterparts showed an improved overall performance due to fiber contraction and the differences in the coating material. The results highlight the differences in the performance of the three fiber types and the important role of the coating material in the overall composite behavior. Full article
(This article belongs to the Special Issue Application and Durability of Composite Materials in Construction Engineering)
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15 pages, 5221 KiB  
Article
Field Test and Numerical Simulation of a New Layered Structure
by Ying-Qi Hao, Zhong-Bao Ye and Xin-Gui Zhou
Buildings 2023, 13(7), 1742; https://doi.org/10.3390/buildings13071742 - 10 Jul 2023
Viewed by 645
Abstract
To study the attenuation and dispersion effect of a new protective structure distribution layer constructed with a hollow particle composite material on the shock wave, a similar model field explosion test was carried out in this paper. The numerical simulation of explosion tests [...] Read more.
To study the attenuation and dispersion effect of a new protective structure distribution layer constructed with a hollow particle composite material on the shock wave, a similar model field explosion test was carried out in this paper. The numerical simulation of explosion tests under different conditions was carried out by using the finite element program 3D/LS-DYNA and the test results were used for verification. The experimental results showed that under the same charge conditions, the shell-shielding layer above the distribution layer of the hollow-shell particle composite material was greatly deformed and the damage was more serious than that above the distribution layer of yellow sand, which had an obvious attenuation effect on the shock wave. Under the same charge condition, the stress peak at the bottom of the distribution layer of the empty shell particle composite material was 0.47 times that of the distribution layer of yellow sand at the same position; the stress wave rose and the pulse width increased, which had an obvious dispersion effect. The distribution layer constructed by the hollow particle composite material had no obvious overall comminution damage, which improved the secondary anti-explosion ability of the protective structure. Therefore, the distribution layer constructed with the hollow particle composite not only enhanced the energy absorption and wave elimination of the protective structure, but also improved the safety of the protective structure. Full article
(This article belongs to the Special Issue Application and Durability of Composite Materials in Construction Engineering)
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20 pages, 3360 KiB  
Article
Experimental and Statistical Analysis of Repeated Impact Records of Hybrid Fiber-Reinforced High-Performance Concrete
by Sajjad H. Ali, Sallal R. Abid, Karrar Al-Lami, Angelo Savio Calabrese, Ahmed M. Yosri and Thaar S. Al-Ghasham
Buildings 2023, 13(3), 678; https://doi.org/10.3390/buildings13030678 - 03 Mar 2023
Cited by 2 | Viewed by 1324
Abstract
The effect of fiber type and fiber hybridization on the repeated impact strength was investigated experimentally using six high-performance concrete mixtures reinforced with a 2.5% fiber volume fraction. The fiber types considered in this study included short steel fibers (SF) with 6 mm [...] Read more.
The effect of fiber type and fiber hybridization on the repeated impact strength was investigated experimentally using six high-performance concrete mixtures reinforced with a 2.5% fiber volume fraction. The fiber types considered in this study included short steel fibers (SF) with 6 mm length, long SF with 15 mm length, and polypropylene (PP) fibers. The repeated impact test was conducted using a specially made automatic testing machine following the test setup recommendations of the ACI 544-2R test, where cracking (Ncr) and failure (Nf) impact numbers were recorded and the failure mode and crack pattern were observed. The results were statistically analyzed using the normality test and variations were discussed. The test results showed that specimens with pure long SF (S15) obtained the highest Ncr and Nf values, which were 20% and 327% higher than those of the mixture with pure short SF (S6) owing to the better bond between fibers and the cementitious matrix in S15. Replacing 0.5% of the mixture’s SF with PP decreased the cracking resistance by 7% to 15%, while its effect on Nf was dependent on the length of SF. In most cases, the Ncr and Nf records did not exhibit a significant departure from normal distribution, according to the Anderson-darling test. Full article
(This article belongs to the Special Issue Application and Durability of Composite Materials in Construction Engineering)
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