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Materials
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Emerging Materials and Structures Achieving High-Performance, Low-Carbon and Sustainable Development
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Emerging Materials and Structures Achieving High-Performance, Low-Carbon and Sustainable Development

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

Deadline for manuscript submissions: closed (31 August 2024) | Viewed by 7246

Special Issue Editors

Dr. Biao Hu

E-Mail Website
Guest Editor
School of Civil Engineering (Room A305), Shenzhen University, Nanhai Ave 3688, Shenzhen, China
Interests: composite materials and structures; durability; sustainable construction materials; structural intervention techniques
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Feng Zhang

E-Mail Website
Guest Editor
Geotechnical and Structural Engineering Research Center of Shandong University, Jinan 250061, China
Interests: structural engineering; FRP strengthening and retrofitting; prestressed concrete structure
Prof. Dr. Ao Zhou

E-Mail Website
Guest Editor
School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, China
Interests: ultra-high-performance concrete; sustainable building material; fiber-reinforced polymer; durability; interfacial behavior; toughness
Special Issues, Collections and Topics in MDPI journals
Dr. Zhi-Qi He

E-Mail Website
Guest Editor
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China
Interests: basic theory of prestressed concrete bridge; high-performance bridge structure system and theory; bridge industrial construction technology
Dr. Lei Gao

E-Mail Website
Guest Editor
Geotechnical and Structural Engineering Research Center of Shandong University, Jinan 250061, China
Interests: composite structure; structural rehabilitation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The shortage of raw construction materials, high carbon emissions in the cement industry and the huge maintenance cost of existing structures are critical obstructions hindering the sustainable development of concrete infrastructures. Due to the innovative efforts undertaken by the research community, satisfactory achievements have been reached in terms of advanced materials, featured structures as well as retrofitting materials and technologies. The application of high-performance, low-carbon and recycled construction materials, together with innovative structure systems, is a trend facing the above-stated challenges. This Special Issue plans to provide a platform for the overview of the state-of-the-art in this research field. Topics of interest include (but are not limited to):

  • Low-carbon cementitious materials;
  • Concrete with recycled solid wastes;
  • Recycled fiber-reinforced concrete;
  • Innovative FRP strengthening and retrofitting;
  • FRP bar concrete structures considering ductility demand;
  • High-performance structure system and theory;
  • Ultra-high-performance concrete.

Dr. Biao Hu
Prof. Dr. Feng Zhang
Prof. Dr. Ao Zhou
Dr. Zhi-Qi He
Dr. Lei Gao
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

  • low-carbon cementitious materials
  • concrete with recycled solid wastes
  • recycled fiber-reinforced concrete
  • innovative FRP strengthening and retrofitting
  • FRP bar concrete structures considering ductility demand
  • high-performance structure system and theory
  • ultra-high-performance concrete

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Published Papers (4 papers)

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Research

15 pages, 3262 KiB  
Article
Creep and Shrinkage Properties of Nano-SiO2-Modified Recycled Aggregate Concrete
by Yingwu Zhou, Jiahao Zhuang, Wenwei Lin, Wenzhuo Xu and Rui Hu
Materials 2024, 17(8), 1904; https://doi.org/10.3390/ma17081904 - 19 Apr 2024
Cited by 1 | Viewed by 873
Abstract
The poor performance of recycled concrete aggregate (RCA) leads to greater creep in recycled aggregate concrete (RAC) compared to natural aggregate concrete (NAC). To enhance the quality of RCA, this paper utilizes a 2% concentration of a nano-SiO2 (NS) solution for pre-soaking [...] Read more.
The poor performance of recycled concrete aggregate (RCA) leads to greater creep in recycled aggregate concrete (RAC) compared to natural aggregate concrete (NAC). To enhance the quality of RCA, this paper utilizes a 2% concentration of a nano-SiO2 (NS) solution for pre-soaking RCA. This study aims to replace natural aggregate (NA) with NS-modified recycled aggregate (SRCA) and investigate the creep and shrinkage properties of NS-modified recycled aggregate concrete (SRAC) at various SRCA replacement rates. Subsequently, the creep and shrinkage strains of NAC, SRAC, and RAC are simulated using the finite element method. Finally, a comparative analysis is conducted with the predicted creep and shrinkage strains from CEB-FIP, ACI, B3, and GL2000 models. The experimental results indicate that the creep and shrinkage deformation of SRAC increases with the SRCA replacement rate. Compared to NAC, the creep and shrinkage deformation of SRAC at replacement rates of 30%, 50%, 70%, and 100% increased by 2%, 7%, 13%, and 30%, respectively. However, when 100% of the natural aggregate is replaced with SRCA, the creep and shrinkage deformation decreases by 7% compared to RAC. Moreover, the CEB-FIP and ACI models can predict the creep and shrinkage deformation of concrete reasonably well. Full article
(This article belongs to the Special Issue Emerging Materials and Structures Achieving High-Performance, Low-Carbon and Sustainable Development)
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21 pages, 19924 KiB  
Article
Cyclic Behavior and Stress–Strain Model of Nano-SiO2-Modified Recycled Aggregate Concrete
by Yingwu Zhou, Wenzhuo Xu, Wenwei Lin, Jiahao Zhuang, Feng Xing and Rui Hu
Materials 2024, 17(5), 1180; https://doi.org/10.3390/ma17051180 - 3 Mar 2024
Cited by 1 | Viewed by 1126
Abstract
Recycled aggregate concrete (RAC) possesses different mechanical properties than ordinary concrete because of inherent faults in recycled aggregates (RAs), such as the old interfacial transition zone (ITZ). However, the application of nano-SiO2 presents an effective methodology to enhance the quality of RA. [...] Read more.
Recycled aggregate concrete (RAC) possesses different mechanical properties than ordinary concrete because of inherent faults in recycled aggregates (RAs), such as the old interfacial transition zone (ITZ). However, the application of nano-SiO2 presents an effective methodology to enhance the quality of RA. In this study, nano-SiO2-modified recycled aggregate (SRA) was used to replace natural aggregate (NA), and the stress–strain relationships and cyclic behavior of nano-SiO2-modified recycled aggregate concrete (SRAC) with different SRA replacement rates were investigated. After evaluating the skeleton curve of SRAC specimens, the existing constitutive models were compared. Additionally, the study also proposed a stress–strain model designed to predict the mechanical behavior of concrete in relation to the SRA replacement rate. The results show that compared with RAC, the axial compressive strength of SRAC specimens showed increases of 40.27%, 29.21%, 26.55%, 16.37%, and 8.41% at specific SRA replacement rates of 0%, 30%, 50%, 70%, and 100%, respectively. Moreover, the study found that the Guo model’s calculated results can accurately predict the skeleton curves of SRAC specimens. Full article
(This article belongs to the Special Issue Emerging Materials and Structures Achieving High-Performance, Low-Carbon and Sustainable Development)
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12 pages, 2501 KiB  
Article
The Influence of Polymer Superplasticizers on Properties of High-Strength Concrete Based on Low-Clinker Slag Portland Cement
by Leonid Dvorkin, Vadim Zhitkovsky, Ruslan Makarenko and Yuri Ribakov
Materials 2023, 16(5), 2075; https://doi.org/10.3390/ma16052075 - 3 Mar 2023
Cited by 4 | Viewed by 1561
Abstract
The paper deals with the effectiveness of various types of polymers (naphthalene formaldehyde, polycarboxylate, and lignosulfonate) as superplasticizers of concrete mixtures based on low-clinker slag Portland cement. Using the mathematical planning experimental method and statistical models of water demand of concrete mixtures with [...] Read more.
The paper deals with the effectiveness of various types of polymers (naphthalene formaldehyde, polycarboxylate, and lignosulfonate) as superplasticizers of concrete mixtures based on low-clinker slag Portland cement. Using the mathematical planning experimental method and statistical models of water demand of concrete mixtures with polymer superplasticizers, as well as concrete strength at different ages and under different curing conditions (normal curing and after steaming) were obtained. According to the models, the superplasticizer’s water-reducing effect and relative change in concrete strength were obtained. The proposed criterion for evaluating the effectiveness and compatibility of superplasticizers with cement takes into account the water-reducing effect of the superplasticizer and the corresponding relative change in concrete strength. The results demonstrate that the use of the investigated superplasticizer types and low-clinker slag Portland cement allows for achieving a significant increase in concrete strength. The effective contents of various polymer types, which allow the achieving of concrete strengths from 50 MPa to 80 Mpa, has been found. Full article
(This article belongs to the Special Issue Emerging Materials and Structures Achieving High-Performance, Low-Carbon and Sustainable Development)
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16 pages, 5104 KiB  
Article
Surface Properties of Eggshell Powder and Its Influence on Cement Hydration
by Yinghou He, Dehao Che, Xiaowei Ouyang and Yanfei Niu
Materials 2022, 15(21), 7633; https://doi.org/10.3390/ma15217633 - 30 Oct 2022
Cited by 7 | Viewed by 2817
Abstract
Using eggshell powder (EP) to replace partial cement in cement-based materials can abate pollution caused by eggshell discard and cement production. In this paper, the surface property of EP and its influence on cement hydration were studied. Quartz powder (QP) and limestone powder [...] Read more.
Using eggshell powder (EP) to replace partial cement in cement-based materials can abate pollution caused by eggshell discard and cement production. In this paper, the surface property of EP and its influence on cement hydration were studied. Quartz powder (QP) and limestone powder (LP) were used as references. First, the chemical composition of EP was characterized. Then, the surface charge properties of these materials were analyzed using zeta potential measurement. The interactions between EP surface and Ca2+ were discussed based on the zeta potential test. Afterward, a scanning electron microscope (SEM) was applied to observe the morphology of hydrates on the surfaces of these materials. The results indicated that, although the compositions of EP and LP are similar, the surface charge properties are significantly different. This is likely due to the existence of organic matter on the surface of EP and the difference in the atomic structure. As shown from the zeta potential test, EP exhibits similar interaction with Ca2+ as QP. The interactions between EP surface and Ca2+ are much weaker than that between LP and Ca2+. These weak interactions lead to the growth of C–S–H on the surface of EP particles less than that of LP particles. The chemical reactivity of EP can be improved by using heat treatment, electrical oven, etc. This study will provide theoretical support for the better use of EP in cement-based materials. Full article
(This article belongs to the Special Issue Emerging Materials and Structures Achieving High-Performance, Low-Carbon and Sustainable Development)
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