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Advances in Durability of Construction Materials
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Advances in Durability of Construction Materials

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

Deadline for manuscript submissions: 20 August 2024 | Viewed by 1164

Special Issue Editors

Dr. Yi Xu

E-Mail Website
Guest Editor
College of Mechanics and Materials, Hohai University, Nanjing 211100, China
Interests: ultra high performance concrete; lightweight concrete; cement-based materials; creep
Dr. Yi Fang

E-Mail Website
Guest Editor
College of Mechanics and Materials, Hohai University, Nanjing 211100, China
Interests: low-carbon concrete materials; cement-based materials; utilization of solid wastes in construction materials
Dr. Xiang Xi

E-Mail Website
Guest Editor
College of Mechanics and Materials, Hohai University, Nanjing 211100, China
Interests: cement-based materials; self-sensing; electrical behavior; energy harvesting; piezoresistivity; carbon fiber; composites; friction and wear

Special Issue Information

Dear Colleagues,

Durability, defined as “the capability of a structure to maintain minimum performance under the influence of loads”, is a critical aspect in the realm of materials science. Service life design plays a pivotal role in ensuring that this performance is sustained over the intended period, commonly referred to as the service life. The objective of this Special Issue, titled “Advances in Durability of Construction Materials” is to compile recent advancements and developments in the domain of construction materials. The sustainability of reinforced concrete structures is intricately linked to their durability, especially in aggressive environments. Notably, with an equivalent environmental impact, the heightened durability of construction materials corresponds to elevated sustainability. This field primarily concentrates on design methodologies and explores the utilization of unconventional corrosion-resistant reinforcements, such as alternative binders to Portland cement, as well as innovative and traditional solutions for protecting reinforced concrete and preventing rebar corrosion. These solutions encompass corrosion inhibitors, coatings, self-healing techniques, and waterproofing aggregates. Furthermore, the evolving landscape of construction materials necessitates innate intelligence, allowing structures to autonomously sense their conditions and issue warnings before damages caused by poor durability manifest. Consequently, this Special Issue endeavors to present contributions focused on enhancing the durability of construction materials, encompassing original research or review articles that delve into innovative approaches within this domain. Themes of interest include, but are not limited to, the following:

  • Sulfate attack and alkali-aggregate reaction;
  • Freeze–thaw durability;
  • Durability of high-performance concrete (HPC);
  • Alternative binders and supplementary cementitious materials;
  • Life-cycle assessment and sustainable practices.
  • Corrosion in marine construction materials;
  • Prediction of durability based on artificial intelligence;
  • Shrinkage and expansion of construction materials;
  • Carbonization and prevention for construction materials;
  • Environment-dependent creep behavior of concrete structures;
  • Monitoring of durability (ions attack, carbonization, freeze–thaw) of construction materials;
  • Microcapsule-based self-healing of concrete structures with environmental impacts.

Dr. Yi Xu
Dr. Yi Fang
Dr. Xiang Xi
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. Materials 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 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

  • durability
  • rebars corrosion
  • self-healing
  • corrosion
  • carbonization
  • creep
  • physically induced deterioration
  • chemically induced deterioration
  • structure performance
  • permeability
  • alkaline activation

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Published Papers (2 papers)

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Research

14 pages, 2936 KiB  
Article
Analytical Solution for Predicting the Elastic Modulus of a Cement Slurry System with the Effect of Calcium Dissolution
by Fengyan Qi, Wenbing Song, Zhiwei Chen and Jian Zhang
Materials 2024, 17(16), 3927; https://doi.org/10.3390/ma17163927 - 7 Aug 2024
Viewed by 322
Abstract
The dissolution of calcium ions in concrete in a low-alkalinity environment is an important factor causing a significant increase in the porosity of internal concrete, leading to a deterioration in its mechanical properties and affecting the durability of the concrete structure. In order [...] Read more.
The dissolution of calcium ions in concrete in a low-alkalinity environment is an important factor causing a significant increase in the porosity of internal concrete, leading to a deterioration in its mechanical properties and affecting the durability of the concrete structure. In order to improve the reliability of concrete durability design and significantly increase the service life of concrete structures located in soft water environments, it is crucial to establish an analytical method to predict the elastic modulus (Edc) of cement slurry systems suffering from calcium dissolution. Firstly, the hydrated cement particles are regarded as a three-phase composite sphere composed of unhydrated cement particles (UC), a high-density hydrated layer (H-HL), and a low-density hydrated layer (L-HL). By introducing the equivalent inclusion phase (EQ) composed of UC and H-HL, the three-phase composite sphere model can be simplified into an equivalent hydrated cement particle model composed of EQ and L-HL. Finally, the Edc of the two-phase composite sphere composed of the equivalent hydrated cement particles and the porosity of the dissolved cement slurry system are solved by using elasticity theory. The effectiveness of the developed analytical method is verified by comparing it with third-party numerical results. Based on this method, the effects of hydration degree, volume ratio of calcium hydroxide (CH) to hydrated calcium silicate (C-S-H), and volume ratio of inner C-S-H to outer C-S-H on the Edc of the dissolved cement slurry system are analyzed. The parameter analysis indicates that among the three influencing parameters, the hydration degree has the greatest effect on the Edc of the dissolved cement slurry system. This study provides an analytical method for predicting Edc, which can provide some references for the durability design of concrete after calcium dissolution. Full article
(This article belongs to the Special Issue Advances in Durability of Construction Materials)
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18 pages, 7667 KiB  
Article
Effects of Hydrostatic Pressure and Cation Type on the Chloride Ion Transport Rate in Marine Concrete: An Experimental Study
by Huanqiang Liu, Xueqing Yang, Linhua Jiang, Keliang Li and Weizhun Jin
Materials 2024, 17(13), 3195; https://doi.org/10.3390/ma17133195 - 29 Jun 2024
Viewed by 548
Abstract
The effect of hydrostatic pressure and cation type on chloride ion transport in marine underwater concrete cannot be ignored. The study of the chloride ion transport behavior of concrete under the effect of hydrostatic pressure and cation type coupling can provide a basis [...] Read more.
The effect of hydrostatic pressure and cation type on chloride ion transport in marine underwater concrete cannot be ignored. The study of the chloride ion transport behavior of concrete under the effect of hydrostatic pressure and cation type coupling can provide a basis for durability design and the protection of marine concrete. In this work, the chloride ion transport behavior of marine concrete in four common chloride salt solutions under different hydrostatic pressures is studied by a hydrostatic pressure test device developed by the authors. The results show that hydrostatic pressure and its action time significantly influence the chloride ion transport behavior in marine concrete; the higher the hydrostatic pressure of concrete, the faster the chloride ion transport rate. The longer the time, the more chloride ions accumulated in the same position, and the farther the chloride ion transport distance. Cation type has a certain influence on the transport process of chloride ions. Under the same test conditions, the chloride ion transport rate in a divalent cation solution is about 5% higher than that in a monovalent cation solution. The results also show that the chloride ion binding capacity under hydrostatic pressure is only 10~20% of that under natural diffusion. Using the test results, a predictive model of a chloride ion apparent transport coefficient based on the hydrostatic pressure and hydrostatic pressure action time corrected by a cation type influence coefficient is established. Full article
(This article belongs to the Special Issue Advances in Durability of Construction Materials)
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