Strengthening and Repair of Concrete Structures: Surface Technologies and Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: 20 August 2026 | Viewed by 111

Special Issue Editors

College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: seismic resilience evaluation of nuclear power plant structures and systems; strengthening and repair of concrete structures; structural failure mechanisms under multi-hazard actions; structural optimization design; applications of artificial intelligence in both nuclear power plants and civil engineering

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Guest Editor
College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: seismic resistance and structural strengthening; seismic resilience of FRP-strengthened structures; seismic response analysis and simplified calculation methods; seismic and pressure-bearing performance of FRC nuclear containment structures

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your works to a Special Issue on “Strengthening and Repair of Concrete Structures: Surface Technologies and Applications”. This Special Issue aims to highlight advances in surface-level treatment and coating technologies used for the repair, protection, and strengthening of concrete structures. It will gather contributions focused on the development, performance evaluation, and real-world application of innovative surface-treatment systems, particularly coatings and related interfacial technologies that enhance the durability and functionality of concrete.

The scope of this Special Issue encompasses a range of surface-applied solutions, including protective and functional coatings, such as anti-corrosion, waterproofing, self-cleaning, and photocatalytic layers, along with surface preparation and modification techniques like impregnation, etching, and texturing. It also covers advanced thin-layer applications, such as mortars and engineered cementitious composites (ECC) used as overlays, as well as surface-level reinforcement systems, such as textile-reinforced mortars (TRM) and fiber-reinforced polymers (FRP), with particular attention to coating-matrix compatibility and adhesion.

Performance evaluation will focus on properties and tests relevant to surface and coating technologies, including adhesion strength and interfacial behavior (e.g., pull-off and slant shear tests), durability under aggressive conditions such as UV exposure, freeze–thaw cycles, and chemical attacks, and microstructural analysis of coating-concrete interfaces via SEM, XRD, and FTIR. Key surface properties, such as hydrophobicity, abrasion resistance, and permeability, will be examined, along with in situ performance and non-destructive evaluation of treated structural elements.

This Special Issue intends to provide a state-of-the-art overview of surface and coating technologies that improve the safety, service life, and sustainability of concrete structures. We welcome fundamental and applied studies, especially those bridging material science and structural performance from a surface-technology perspective.

Topics of interest include, but are not limited to:

  • Novel coating materials and formulations for concrete protection and strengthening.
  • Surface preparation, conditioning, and functionalization techniques.
  • Interfacial bond behavior and stress transfer in coated or surface-treated systems.
  • Long-term durability of coatings and surface treatments under harsh environmental conditions.
  • Case studies on coating and surface technology applications in bridges, buildings, and industrial structures.
  • Non-destructive testing and in situ monitoring of surface-treated concrete members.
  • Modeling and simulation of coating-substrate interactions and performance.
  • Life-cycle assessment and environmental impact of surface-treatment interventions.

Dr. Zhi Zheng
Dr. Xiaolan Pan
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 250 words) can be sent to the Editorial Office for assessment.

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. Coatings 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.

Keywords

  • concrete strengthening
  • surface treatments and coatings
  • bond behavior
  • durability
  • structural rehabilitation

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Published Papers (1 paper)

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Research

16 pages, 4566 KB  
Article
Road Performance of Polyurethane Mixtures and Load Response Behaviors of Typical Polyurethane Pavement Structures
by Chuanqin Pang, Zhaoliang Huang, Jun Song, Litao Geng, Min Sun and Huihui Li
Coatings 2026, 16(2), 185; https://doi.org/10.3390/coatings16020185 - 2 Feb 2026
Abstract
In order to clarify the road performance and load response behavior of polyurethane mixtures, a low-temperature bending test, dynamic modulus test, rutting test, Hamburg rutting test, and four-point bending fatigue test were conducted on multi-crushed stone polyurethane concrete (SPC-16) and polyurethane concrete (PC-20) [...] Read more.
In order to clarify the road performance and load response behavior of polyurethane mixtures, a low-temperature bending test, dynamic modulus test, rutting test, Hamburg rutting test, and four-point bending fatigue test were conducted on multi-crushed stone polyurethane concrete (SPC-16) and polyurethane concrete (PC-20) as the test objects, and the results were compared with the road performance of an asphalt mastic crushed stone mixture (SMA-13). The differences in the load response between two typical polyurethane mixture pavement structures and a typical asphalt pavement structure were analyzed under four working conditions: a normal-temperature standard load, normal-temperature heavy load, high-temperature standard load, and high-temperature heavy load. The results showed that the low-temperature flexural tensile strength of the polyurethane mixture was 1.3–1.7-times that of SMA-13, the maximum flexural tensile strain was 1.1–1.8-times that of SMA-13, the dynamic stability of the polyurethane mixture was more than 15-times that of SMA-13, and the fatigue life of the polyurethane mixture was 8–12-times that of SMA-13. The surface deflection, base stress, and surface strain of the typical asphalt pavement structures and two typical polyurethane mixture pavement structures at the same temperature all increased with an increase in the load. The load response of the polyurethane mixture pavement structures under high-temperature conditions was relatively stable. Full article
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