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Research on Properties of Cement-Based Materials and Concrete
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Research on Properties of Cement-Based Materials and Concrete

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

Deadline for manuscript submissions: 30 September 2024 | Viewed by 4802

Special Issue Editors

Dr. Dongyi Lei

E-Mail Website
Guest Editor
College of Civil Engineering, Qingdao University of Technology, Qingdao 266000, China
Interests: high-ductility cementitious materials; high-performance engineered cementitious composite; mechanical property; durability; service-life analysis and prediction
Dr. Ying Li

E-Mail Website
Guest Editor
College of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China
Interests: functional cementitious composites; fiber-reinforced concrete; seawater sea-sand concrete
Dr. Guo Yang

E-Mail
Guest Editor
College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
Interests: tensile creep of UHPC; shrinkage cracking of UHPC
Dr. Jingbin Yang

E-Mail Website
Guest Editor
Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
Interests: internal curing concrete; alkali-activated materials

Special Issue Information

Dear Colleagues,

Cement-based materials are the most widely used building materials; their performances determine the service life of buildings to a great extent. Concrete is the most common cement-based material. In recent years, with the continuous deepening of modern engineering construction, the construction environment has become more and more complex and harsh; this necessitates higher requirements for the performance of cement-based materials. Therefore, the main aim of this Special Issue is to explore the recent challenges and developments of the properties of cement-based materials and concrete. Topics include, but are not limited to, the following:

  • Study on the properties of high-ductility cement-based composite materials;
  • Mix proportion design, formulation of curing regime, and improvement of preparation;
  • Performance improvement for mechanical properties, durability and volume stability;
  • Finite element simulations of mechanical properties, durability, hydration process;
  • Interface characteristics between cement-based materials and fiber, steel bars or FRP;
  • Service-life prediction and repair of cement-based materials;
  • Shrinkage cracking behavior of cement-based materials;
  • Working performance of cement-based materials;
  • Application of industrial solid waste in cementitious materials and development of low-carbon cementitious systems.

Dr. Dongyi Lei
Dr. Ying Li
Dr. Guo Yang
Dr. Jingbin Yang
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.

Keywords

  • cement-based materials
  • mix design
  • curing regime
  • mechanical properties durability
  • prediction model
  • finite element simulation
  • interfacial bonding property
  • service-life prediction
  • shrinkage cracking
  • environmentally friendly binder

Published Papers (6 papers)

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Research

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32 pages, 7048 KiB  
Article
Evaluation of Cherts in Gumushane Province in Terms of Alkali Silica Reaction
by Demet Demir Şahin
Buildings 2024, 14(4), 873; https://doi.org/10.3390/buildings14040873 - 23 Mar 2024
Viewed by 419
Abstract
Alkali–silica reaction (ASR) occurs when alkali oxides coming from the cement composition in concrete come together with reactive silica and moisture coming from the aggregate. Additional maintenance and repair costs caused by the development of ASR in concrete cause the cost to increase. [...] Read more.
Alkali–silica reaction (ASR) occurs when alkali oxides coming from the cement composition in concrete come together with reactive silica and moisture coming from the aggregate. Additional maintenance and repair costs caused by the development of ASR in concrete cause the cost to increase. However, thanks to the measures taken against ASR in the early period, it contributes to the creation of sustainable and durable concrete structures. The article investigated the usability of cherts with eight different chemical compositions as aggregates in ready-mixed concrete plants in Gümüşhane. Cherts have been investigated for alkaline reactivity and are intended to be used largely as a source for concrete plants. ASR length changes of the samples prepared according to ASTM C1260 standard were determined after 3, 7, 14, and 28 days of the curing period. Microstructural examination, ultrasonic P-wave velocity, and bending and compressive strength experiments supporting ASR were carried out. The obtained test results were compared between the reference (limestone) sample and each other, as well as with the values specified in the standards. The compressive and bending strength values of the samples increase depending on their ASR. It was observed that the crack structures and types increased depending on the increase in the crack values. Full article
(This article belongs to the Special Issue Research on Properties of Cement-Based Materials and Concrete)
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13 pages, 4544 KiB  
Article
Effects of Sodium Gluconate on the Fluidity and Setting Time of Phosphorus Gypsum-Based Self-Leveling
by Xuepeng Shen, Hao Ding, Zhichun Chen, Ying Li, Wenxuan An, Aili Chen, Dongyi Lei, Ying Fang and Dongxu Li
Buildings 2024, 14(1), 89; https://doi.org/10.3390/buildings14010089 - 28 Dec 2023
Viewed by 645
Abstract
To comprehensively utilize industrial by-products of gypsum while reducing the consumption of natural river sand, this experiment was conducted to prepare gypsum-based sandless self-leveling (PGSL) materials by using phosphorus-building gypsum (PBG) and portland cement (PC) as gelling raw materials with the addition of [...] Read more.
To comprehensively utilize industrial by-products of gypsum while reducing the consumption of natural river sand, this experiment was conducted to prepare gypsum-based sandless self-leveling (PGSL) materials by using phosphorus-building gypsum (PBG) and portland cement (PC) as gelling raw materials with the addition of polycarboxylate superplasticizer (PCE), cellulose ethers (CE), and retarders. However, employing phosphogypsum as the source material results in a significant 30 min fluidity loss in the gypsum-based self-leveling system. Therefore, to enhance the flow characteristics of gypsum self-leveling, sodium gluconate was chosen for usage in this research. The impact of single and compound mixing of protein-based retarder (PR) and sodium gluconate (SG) on gypsum-based sandless self-leveling materials was evaluated in terms of heat of hydration analysis, pore structure, fluidity, strength, and setting time. According to the experimental findings, it was possible to considerably decrease the fluidity loss of gypsum-based sandless self-leveling materials, postpone the setting time, boost strength, and enhance pore structure when combined with 0.4% SG and 0.03% PR. Full article
(This article belongs to the Special Issue Research on Properties of Cement-Based Materials and Concrete)
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14 pages, 4800 KiB  
Article
Effect of Citric Acid-Modified Chitosan on Hydration Regulation and Mechanism of Composite Cementitious Material System
by Liguo Wang, Zhibin Qin, Jiandong Wu, Guangxia Sheng, Han Wang, Kai Liu, Xiaobin Dong, Fengjuan Wang and Jinyang Jiang
Buildings 2024, 14(1), 41; https://doi.org/10.3390/buildings14010041 - 22 Dec 2023
Viewed by 680
Abstract
The temperature stress caused by the large temperature difference is the main factor causing harmful cracks in large-volume concrete. The introduction of admixtures is beneficial to reduce the temperature difference inside and outside the large-volume concrete. This study investigated the mechanism of how [...] Read more.
The temperature stress caused by the large temperature difference is the main factor causing harmful cracks in large-volume concrete. The introduction of admixtures is beneficial to reduce the temperature difference inside and outside the large-volume concrete. This study investigated the mechanism of how citric acid-modified chitosan (CAMC) affects the hydration heat release process and hydration products of composite cementitious materials. Through methods such as hydration heat, X-ray diffraction (XRD), mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM), and nuclear magnetic resonance (NMR), the mechanism of how CAMC controls the hydration heat release process and hydration products of composite cementitious materials was revealed. The results show that the addition of CAMC delayed the hydration process of cementitious materials without affecting the type of hydration products but affected the content of each phase of hydration products. As the hydration process proceeded, the total porosity of all samples decreased, the volume of large pores decreased, and the volume of small pores increased. As the content of CAMC increased, the pore diameter of the hardened paste gradually became smaller, the proportion of large pores decreased, and the later hydration microstructure became more dense. The increase in CAMC dosage resulted in a decrease in the peak intensity of Q2 in the paste, indicating that Al atoms in Q2 (1Al) existed in the form of Alcoordination, which proves that CAMC reduced its hydration degree and delayed cement hydration. Full article
(This article belongs to the Special Issue Research on Properties of Cement-Based Materials and Concrete)
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15 pages, 8530 KiB  
Article
Molecular Dynamics Study on Interfacial Strengthening Mechanisms of Ettringite/Polymer Nanocomposites
by Liwei Zhang, Heping Zheng and Huilin Xie
Buildings 2023, 13(12), 2976; https://doi.org/10.3390/buildings13122976 - 29 Nov 2023
Viewed by 496
Abstract
Compared with polymer-modified ordinary-Portland-cement-based materials, research on cement materials based on polymer-modified sulfoaluminate is still in the preliminary stage and lacks an understanding of the mechanism of the interaction interface. The aim of this work is to study the bond performance of ettringite, [...] Read more.
Compared with polymer-modified ordinary-Portland-cement-based materials, research on cement materials based on polymer-modified sulfoaluminate is still in the preliminary stage and lacks an understanding of the mechanism of the interaction interface. The aim of this work is to study the bond performance of ettringite, the main hydration product of sulfoaluminate cement, with various types of polymers using molecular dynamics methods. Steered molecular dynamics were used to simulate the separation of polyamide (PA), polyethylene glycol (PEG), polyacrylic acid (PAA) and polypropylene (PP) from ettringite substrate, reflecting the order of bond properties of the four polymers: PAA > PA > PEG > PP. The internal mechanism of bond properties between different polymers and ettringite was analyzed by studying the local structure and dynamic characteristics. The results show that a Ca–O ionic pair is formed between the calcium ions on the surface of the polymer and ettringite substrate, resulting in strong interaction. In addition, the formation of a H bond also contributes to bond performance. The properties of the polymer itself, such as the degree of polymerization and branched-chain freedom, affect the coordination of the polymer to the substrate. This study provides valuable insights for advancing the development of polymer-modified sulfoaluminate-cement-based materials. Full article
(This article belongs to the Special Issue Research on Properties of Cement-Based Materials and Concrete)
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12 pages, 5230 KiB  
Article
Study on the Performance of Polymer-Modified Conductive Cement-Based Materials
by Min Li, Jianjun Zhong, Guoqing Li, Qianyi Zhang, Feng Cen and Peiwei Gao
Buildings 2023, 13(12), 2961; https://doi.org/10.3390/buildings13122961 - 28 Nov 2023
Viewed by 791
Abstract
In order to study the synergistic effect of polymer and conductive functional materials on the properties of cement-based materials, polymer conductive cement-based materials were prepared by mixing four polymer lotions of silicon–acrylate emulsion (SG), phenylacrylic emulsion (SR), waterborne epoxy resin emulsion (SH), and [...] Read more.
In order to study the synergistic effect of polymer and conductive functional materials on the properties of cement-based materials, polymer conductive cement-based materials were prepared by mixing four polymer lotions of silicon–acrylate emulsion (SG), phenylacrylic emulsion (SR), waterborne epoxy resin emulsion (SH), and acrylic emulsion (SX) with carbon fiber (CF) and carbon black (CB), two conductive functional materials, in a certain proportion. The effects of the different polymer–cement ratios (P/C) of the four polymers on the physical, mechanical, and electrical properties of conductive cement-based materials were studied. The results illustrated that SH improved the fluidity of cement paste, and the four polymers all had a delaying effect, which led to the hardening of the specimens and the extension of the demoulding specimens to varying degrees. SH and SR can increase the ratio of flexural strength to compressive strength (F/C) in cement paste and improve the toughness of materials, and the maximum value is reached when the P/C is 0.15. Except for SX, the other three polymer lotions can reduce the resistivity of cement paste, which is beneficial to the improvement of conductivity. The improvement sequence is SH > SR > SG. Among them, both SH group and SR group achieved the lowest electrical resistivity at the P/C of 0.15. The four kinds of polymer lotion can significantly reduce the water absorption of the specimen and promote the waterproof performance. The improvement effect: SH > SR > SG > SX. Among them, both the SH group and SR group achieved the minimum water absorption at the P/C of 0.15. Full article
(This article belongs to the Special Issue Research on Properties of Cement-Based Materials and Concrete)
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Review

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16 pages, 5002 KiB  
Review
Feasibility of Preparing Steel Slag–Ground Granulated Blast Furnace Slag Cementitious Materials: Synergistic Hydration, Fresh, and Hardened Properties
by Jianwei Sun, Shaoyun Hou, Yuehao Guo, Xinying Cao and Dongdong Zhang
Buildings 2024, 14(3), 614; https://doi.org/10.3390/buildings14030614 - 26 Feb 2024
Viewed by 780
Abstract
Steel slag and GBFS are wastes generated during the steel and iron smelting process, characterized by their considerable production rates and extensive storage capacities. After grinding, they are often used as supplementary cementitious materials. However, the intrinsic slow hydration kinetics of steel slag–GBFS [...] Read more.
Steel slag and GBFS are wastes generated during the steel and iron smelting process, characterized by their considerable production rates and extensive storage capacities. After grinding, they are often used as supplementary cementitious materials. However, the intrinsic slow hydration kinetics of steel slag–GBFS cementitious material (SGM) when exposed to a pure water environment result in prolonged setting times and diminished early-age strength development. The incorporation of modifiers such as gypsum, clinker, or alkaline activators can effectively improve the various properties of SGM. This comprehensive review delves into existing research on the utilization of SGM, examining their hydration mechanisms, workability, setting time, mechanical strengths, durability, and shrinkage. Critical parameters including the performance of base materials (water-to-cement ratio, fineness, and composition) and modifiers (type, alkali content, and dosage) are scrutinized to understand their effects on the final properties of the cementitious materials. The improvement mechanisms of various modifiers on properties are discussed. This promotes resource utilization of industrial solid wastes and provides theoretical support for the engineering application of SGM. Full article
(This article belongs to the Special Issue Research on Properties of Cement-Based Materials and Concrete)
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