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5.2
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Journals
Infrastructures
Special Issues
Seismic Performance Assessment of Precast Concrete
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Seismic Performance Assessment of Precast Concrete

A special issue of Infrastructures (ISSN 2412-3811).

Deadline for manuscript submissions: 10 July 2025 | Viewed by 1243

Special Issue Editors

Dr. Yu Lin

E-Mail Website
Guest Editor
College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
Interests: precast concrete structure; steel-concrete composite structure
Dr. Dongzhi Guan

E-Mail Website
Guest Editor
School of Civil Engineering, Southeast University, Nanjing 211189, China
Interests: precast concrete structure; construction method; prestressing steel structure; energy dissipator; high-performance concrete

Special Issue Information

Dear Colleagues,

Precast concrete constitutes an important part of current structural engineering including infrastructural projects and industrial and civil construction. Issues on structural safety and resilience have been the focus of both social interest and industry demands. Different from traditional concrete structures, precast members usually achieve excellent mechanical performance and durability, but their assembly causes certain structural integrity risks according to previous reports and research. As most precast concrete structures fail in their joint connection, which may lead to a progressive collapse under earthquake action, it is crucial to have effective approaches for accurately assessing the seismic performance of precast concrete.

This Special Issue will compile articles on a wide range of topics related to both existing and new precast concrete. Articles including but not limited to novel structural configurations, existing structures, and reliable design methods are encouraged. This issue will also include assessments from the aspects of connection characteristics, structural resilience, and intelligent construction. In addition, an increasing number of evaluation indicators can be measured for both structures and components with precise sensors, data communication, and entire lifecycle statistics. Therefore, innovative assessing approaches to typical precast concrete are especially welcome for this Special Issue, along with new approaches to intelligent applications.

Dr. Yu Lin
Dr. Dongzhi Guan
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. Infrastructures 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 1800 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

  • precast concrete
  • seismic resistances
  • structural component
  • assembly connections
  • performance assessment
  • structural safety
  • structural resilience

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Published Papers (1 paper)

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Research

21 pages, 5315 KiB  
Article
Performance of Sustainable Geopolymer Concrete Made of Different Alkaline Activators
by Yasmin R. Hamed, Mostafa M. Keshta, Mohamed M. Yousry Elshikh, Ahmed A. Elshami, Mohamed H. S. Matthana and Osama Youssf
Infrastructures 2025, 10(2), 41; https://doi.org/10.3390/infrastructures10020041 - 16 Feb 2025
Viewed by 1041
Abstract
A major challenge in modern infrastructure is the excessive reliance on traditional Portland cement, which contributes significantly to environmental degradation and durability issues. This study addresses the need for sustainable and durable construction materials by investigating geopolymer concrete as an eco-friendly alternative, optimizing [...] Read more.
A major challenge in modern infrastructure is the excessive reliance on traditional Portland cement, which contributes significantly to environmental degradation and durability issues. This study addresses the need for sustainable and durable construction materials by investigating geopolymer concrete as an eco-friendly alternative, optimizing its mechanical and microstructural properties to enhance long-term performance in infrastructure applications. The performance of sustainable geopolymer concrete made with silica fume (SF) and fly ash (FA) and utilizing different alkaline activators (AAs) was examined in this study. The alkaline activators included sodium hydroxide (SH), potassium hydroxide (PH), and sodium silicate (SS) solutions. A total of twelve geopolymer concrete mixes were prepared and evaluated. The study considered several variables, including SF content (ranging from 10% to 100%), type of AA (SH+SS or PH+SS), AA concentration, and the AA to cementitious materials (AA/C) ratio. Workability, compressive strength, bending strength, tensile strength, and water absorption were among the mechanical characteristics of the concrete that were assessed, both in fresh and hardened states of the proposed concrete. The geopolymer concrete microstructure was also examined by performing X-ray diffraction (XRD), energy dispersive X-ray (EDX), and scanning electron microscopy (SEM) investigations on a few chosen mixes. The findings showed that when SF content was 10%, 20%, 30%, and 100% as a replacement of FA, the concrete slump rose by 10%, 15%, 15%, and 120%, respectively. However, the compressive strength was increased only with up to 20% SF. Geopolymer concrete with PH as the alkaline activator exhibited up to 13% lower compressive strength compared to SH. The geopolymer concrete microstructure was influenced by the presence of SF, leading to the formation of ettringite. Some FA particles that remained unreacted or were only partially reacted, along with voids, were observed. The findings from this study contribute to the development of sustainable geopolymer concrete, offering a promising solution for green structural applications. Full article
(This article belongs to the Special Issue Seismic Performance Assessment of Precast Concrete)
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