materials-logo

Journal Browser

Journal Browser

Microstructural, Mechanical, and Durability Characteristics of Cementitious Materials (3rd Edition)

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

Deadline for manuscript submissions: 10 August 2026 | Viewed by 1398

Special Issue Editors

Special Issue Information

Dear Colleagues,

Concrete is the most widely used construction material in the world. Advances in the manufacturing of cementitious materials and the production of concrete have led to improved performance of traditional concrete. Different types of cementitious materials have been developed to build high-performance and environmentally sustainable concrete structures. For example, concrete with the addition of supplementary cementitious material, alkali-activated concrete, and geopolymer concrete were developed to reduce the negative environmental impacts of ordinary Portland cement and improve the properties of the construction materials, while fiber-reinforced cementitious composites and ultra-high performance concrete were developed to enhance the performance and durability of the concrete. However, many fundamental mechanisms in the different types of cementitious materials are not yet well understood. Since the mechanical properties and durability of the materials are directly linked to the change in the microstructure of the mixture, it is important to understand the relationship between the microstructural, mechanical and durability performance of cementitious materials.

The aim of this Special Issue is to collect original contributions on the mechanical properties and durability evaluation of different types of cementitious materials and the microstructure characterization of cementitious composites. Topics of interest include, but are not limited to, the following: characterization of cementitious materials, mechanical and durability performance, fiber-reinforced concrete, alkali-activated materials, geopolymer, multi-scale study of the cementitious materials, and other related experimental investigations, simulations and analyses of cement-based construction materials.

Dr. Ruizhe Si
Dr. Shuaicheng Guo
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. 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

  • cementitious materials
  • mechanical properties
  • durability
  • microstructure
  • advanced materials characterization
  • numerical simulations
  • experimental findings

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Related Special Issues

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

21 pages, 3570 KB  
Article
Effect of Sodium Sulfate on Fracture Properties and Microstructure of High-Volume Slag-Cement Mortar
by Ruizhe Si, Xiangyu Han, Yue Zhang and Haonan Zeng
Materials 2026, 19(1), 43; https://doi.org/10.3390/ma19010043 - 22 Dec 2025
Cited by 1 | Viewed by 540
Abstract
This study investigates the effect of added sodium sulfate on the performance of high-volume slag-cement mortar (HVSCM). Herein, Na2SO4 (0, 1, 2, and 4 wt.% Na2O) was used to modify HVSCM. The compressive strength, fracture properties, microstructure, and [...] Read more.
This study investigates the effect of added sodium sulfate on the performance of high-volume slag-cement mortar (HVSCM). Herein, Na2SO4 (0, 1, 2, and 4 wt.% Na2O) was used to modify HVSCM. The compressive strength, fracture properties, microstructure, and environmental impact of the synthesized samples were analyzed. The results showed that the 1 day compressive strength of HVSCM can be improved by 345.5% with the addition of 4% Na2O (as Na2SO4), compared to samples without Na2SO4. However, the 28 day compressive strength of Na2SO4-activated HVSCM was 14.3–26.4% lower than that of the non-activated HVSCM, though still comparable to OPC. Regarding fracture properties, the initial fracture toughness of non-activated HVSCM was 45.6% higher than that of Ordinary Portland cement (OPC) mortar. Furthermore, Na2SO4 activation further increased initial fracture toughness, with the sample containing 4% Na2O showing a 101.1% improvement over OPC. In contrast, fracture energy was not significantly influenced by Na2SO4 addition. Microstructurally, the enhanced fracture properties of non-activated HVSCM were attributed to a higher degree of C-(A)-S-H polymerization and a denser binder phase. Sodium sulfate introduced sodium ions to strengthen electrostatic attraction and cohesion between C-(A)-S-H globules, offsetting reduced polymerization. Environmental assessment confirms that both activated and non-activated HVSCM substantially reduce embodied energy and CO2 relative to OPC, while the additional embodied energy associated with Na2SO4 activation remains limited (<12%). Overall, this work provides a comprehensive understanding of the fracture behavior of Na2SO4-activated HVSCM, elucidating its capacity to enhance early-age strength and fracture toughness while highlighting its limited effect on long-term strength and fracture energy. These findings support the tailored use of Na2SO4 activation for sustainable construction applications. Full article
Show Figures

Figure 1

Review

Jump to: Research

22 pages, 1403 KB  
Review
Review on the Mechanical Properties and Modification Techniques of Coral Concrete
by Hongling Yu, Ao Zhang, Gang Cheng and Jiakun Zhu
Materials 2026, 19(2), 226; https://doi.org/10.3390/ma19020226 - 6 Jan 2026
Viewed by 591
Abstract
Coral aggregate concrete (CAC) serves as a critical material for sustainable development in marine engineering, effectively addressing the shortage of aggregate resources in the construction of offshore islands and reefs. In this paper, the aggregate characteristics, static and dynamic mechanical properties and modification [...] Read more.
Coral aggregate concrete (CAC) serves as a critical material for sustainable development in marine engineering, effectively addressing the shortage of aggregate resources in the construction of offshore islands and reefs. In this paper, the aggregate characteristics, static and dynamic mechanical properties and modification technology of CAC are systematically reviewed. Research indicates that the coral aggregates (CAs), due to its high porosity (approximately 50%), low bulk density (900–1100 kg/m3), and rough, porous surface, results in relatively low static compressive strength (20–40 MPa), insufficient elastic modulus, and significant brittleness in CAC. However, its dynamic performance shows the opposite advantage. Under impact loads, the energy absorption capacity is enhanced by 32.6–140.3%, compared to ordinary concrete (OC) due to the energy dissipation mechanism of pore platic deformation. Through the modification techniques, such as aggregate pre-treatment (acid washing/coating), incorporation of auxiliary cementitious materials (silica fume increases strength by 16.4%), fibre reinforcement (carbon fibres enhance flexural strength by 33.3%), and replacement with novel cementitious materials (magnesium sulphate cement improves chloride ion binding capacity by 90.7%), the mechanical properties and durability of CAC can be significantly optimised. This paper highlights gaps in current research regarding the high strain rate (>200 s−1) dynamic response, multi-factor coupled durability in marine environments, and the engineering application of alkali-activated materials, providing theoretical basis for future research directions. Full article
Show Figures

Graphical abstract

Back to TopTop