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Low-Carbon Building Materials
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Low-Carbon Building Materials

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

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 5527

Special Issue Editors

Dr. Li Li

E-Mail Website
Guest Editor
College of Water Resources and Architectural Engineering, Northwest A&F University, No. 23, Wei Hui Rd., Xianyang 712100, China
Interests: engineering materials; cementitious composite; fiber-reinforced cementitious composite; UHPC; rheology; high-temperature properties; geopolymer; nanomaterials; microstructure; multiscale
Special Issues, Collections and Topics in MDPI journals
Dr. Changming Li

E-Mail Website
Guest Editor
School of Civil Engineering and Transportation, North China University of Water Resource and Electric Power, Zhengzhou 450045, China
Interests: building materials; concrete; cementitious composites; UHPC; high-temperature properties; microstructure; cementitious materials and design; geopolymer composites; low-carbon materials
Dr. Yuan Jia

E-Mail Website
Guest Editor
College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, China
Interests: functional building materials; MgO-based cementitious materials; industrial solid waste resource utilization and sustainable construction materials
Dr. Yanfeng Fang

E-Mail Website
Guest Editor
School of Civil Engineering, Shenyang Jianzhu University, No.25 Hunnan Rd., Shenyang 110168, China
Interests: mineral carbonation; low-carbon cementitious materials; utilization of industrial wastes; hydration chemistry of cement
Special Issues, Collections and Topics in MDPI journals
Dr. Jingliang Dong

E-Mail Website
Guest Editor
School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
Interests: building materials; concrete; cementitious composites; UHPC; high-temperature properties; microstructure; geopolymer composites; low-carbon materials

Special Issue Information

Dear Colleagues,

Increasing anxiety around climate warming resulting from increased carbon dioxide emissions from the use of traditional engineering materials has led to a high level of interest in developing low-carbon engineering materials. However, engineering materials have different strategies to deal with the above challenges.

Hybrid fiber reinforced cementitious composites are a kind of cementitious composite which can inhibit crack development through various fiber bridging effects, improving the mechanical properties and durability of cementitious composites. For example, high-ductility concrete can significantly improve the ductility, toughness, and durability of their respective structures. With the rapid development of economy, the production of industrial solid waste has increased, and the utilization rate of industrial solid waste has been at a low level for a long time. The effective management of industrial solid waste is an important aspect when it comes to developing a circular economy. However, determining how to better promote the recycling of industrial solid waste and improve the efficiency of industrial solid waste utilization has become very important. Therefore, sustainable engineering materials are one of the key paths to solve environmental problems and develop a circular economy that improves the utilization and added value of industrial solid waste. Alkali-activated cement is a new type of cement with good workability, high compressive strength, low drying shrinkage, low energy consumption, and low CO2 emissions. The findings of this Special Issue may open up new ways of finding alternatives to the OPC. Therefore, it is possible to integrate these materials in civil engineering applications to enhance the sustainability of the respective structures and improve their durability.

In this regard, this Special Issue aims to focus on the development of durable and low-carbon engineering materials. We look forward to your contributions to this Special Issue. Full-text articles, comments, and communications are welcome.

Dr. Li Li
Dr. Changming Li
Dr. Yuan Jia
Dr. Yanfeng Fang
Dr. Jingliang Dong
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

  • industrial solid waste resource utilization
  • fiber-reinforced cementitious composite
  • geopolymer material
  • low-clinker cement
  • FRP reinforced structure
  • durability of engineering materials
  • alkali-activated cement

Published Papers (5 papers)

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Research

17 pages, 7848 KiB  
Article
Properties, Microstructure Development and Life Cycle Assessment of Alkali-Activated Materials Containing Steel Slag under Different Alkali Equivalents
by Xin Ji, Xiaofeng Wang, Xin Zhao, Zhenjun Wang, Haibao Zhang and Jianfei Liu
Materials 2024, 17(1), 48; https://doi.org/10.3390/ma17010048 - 22 Dec 2023
Cited by 1 | Viewed by 588
Abstract
To improve solid waste resource utilization and environmental sustainability, an alkali-activated material (AAM) was prepared using steel slag (SS), fly ash, blast furnace slag and alkali activators in this work. The evolutions of SS content (10–50%) and alkali equivalent (4.0–8.0%) on workability, mechanical [...] Read more.
To improve solid waste resource utilization and environmental sustainability, an alkali-activated material (AAM) was prepared using steel slag (SS), fly ash, blast furnace slag and alkali activators in this work. The evolutions of SS content (10–50%) and alkali equivalent (4.0–8.0%) on workability, mechanical strength and environmental indicators of the AAM were investigated. Furthermore, scanning electron microscopy, X-ray diffraction and nuclear magnetic resonance techniques were adopted to characterize micromorphology, reaction products and pore structure, and the reaction mechanism was summarized. Results showed that the paste fluidity and setting time gradually increased with the increase in SS content. The highest compressive strength was obtained for the paste at 8.0% alkali equivalent due to the improved reaction rate and process, but it also increased the risk of cracking. However, SS was able to exert a microaggregate filling effect, where SS particles filling the pores increased the structural compactness and hindered crack development. Based on the optimal compressive strength, global warming, abiotic resource depletion, acidification and eutrophication potential of the paste are reduced by 76.7%, 53.0%, 51.6%, and 48.9%, respectively, compared with cement. This work is beneficial to further improve the utilization of solid waste resources and expand the application of environmentally friendly AAMs in the field of construction engineering. Full article
(This article belongs to the Special Issue Low-Carbon Building Materials)
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14 pages, 5031 KiB  
Article
Evolution Law of Structural Form and Heat Transfer Performance of Thermal Insulation System
by Shuang-Xi Zhou, Jian-Xin Li, Shu-Feng Bao, Yang Ding, Yong-Qi Wei, An-Ming She, Zhen-Zhen Guo and Jing-Liang Dong
Materials 2023, 16(18), 6341; https://doi.org/10.3390/ma16186341 - 21 Sep 2023
Cited by 1 | Viewed by 892
Abstract
Building thermal insulation and energy conservation have become urgent problems in the field of civil engineering because they are important for achieving the goal of carbon neutralization. Thermal conductivity is an important index for evaluating the thermal insulation of materials. To study the [...] Read more.
Building thermal insulation and energy conservation have become urgent problems in the field of civil engineering because they are important for achieving the goal of carbon neutralization. Thermal conductivity is an important index for evaluating the thermal insulation of materials. To study the influence of different porosity levels on the thermal conductivity of materials, this paper established a random distribution model using MATLAB and conducted a comparative analysis using COMSOL finite element software and classical theoretical numerical calculation formulas. The thermal conductivity of composite materials was determined based on a theoretical calculation formula and COMSOL software simulations, and the theoretical calculation results and simulation results were compared with the measured thermal conductivity of the composites. Furthermore, the influence of the width of the gaps between the materials on the heat transfer process was simulated in the fabricated roof structure. The results showed the following: (1) The thermal conductivity values calculated using the Zimmerman model were quite different from those calculated using the Campbell-Allen model and those calculated using the COMSOL software; (2) The thermal conductivity values calculated using the theoretical calculation formula were lower than the measured data, and the maximum relative error was more than 29%. The COMSOL simulation results were in good agreement with the measured data, and the relative error was less than 5%; (3) When the gap width was less than 60 mm, it increased linearly with the heat transfer coefficient. The heat transfer coefficient increased slowly when the gap width was greater than 60 mm. This was mainly due to the thermal bridge effect inside the insulation system. Based on these research results, a thermal insulation system was prepared in a factory. Full article
(This article belongs to the Special Issue Low-Carbon Building Materials)
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16 pages, 3635 KiB  
Article
Study on the Stability of Low-Carbon Magnesium Cementitious Materials in Sulfate Erosion Environments
by Yuan Jia, Xinmei Zou, Yaoting Jiang, Yuxin Zou, Shuanglin Song, Jianyun Qin, Yongjing Wang and Lihua Zhu
Materials 2023, 16(11), 4042; https://doi.org/10.3390/ma16114042 - 29 May 2023
Viewed by 1018
Abstract
The current investigation focuses on the stability of the magnesium oxide-based cementitious system under the action of sulfate attack and the dry-wet cycle. The phase change in the magnesium oxide-based cementitious system was quantitatively analyzed by X-ray diffraction, combined with thermogravimetry/derivative thermogravimetry and [...] Read more.
The current investigation focuses on the stability of the magnesium oxide-based cementitious system under the action of sulfate attack and the dry-wet cycle. The phase change in the magnesium oxide-based cementitious system was quantitatively analyzed by X-ray diffraction, combined with thermogravimetry/derivative thermogravimetry and scanning electron microscope, to explore its erosion behavior under an erosion environment. The results revealed that, in the fully reactive magnesium oxide-based cementitious system under the environment of high concentration sulfate erosion, there was only magnesium silicate hydrate gel formation and no other phase; however, the reaction process of the incomplete magnesium oxide-based cementitious system was delayed, but not inhibited, by the environment of high-concentration sulfate, and it tended to turn completely into a magnesium silicate hydrate gel. The magnesium silicate hydrate sample outperformed the cement sample, in terms of stability in a high-concentration sulfate erosion environment, but it tended to degrade considerably more rapidly, and to a greater extent, than Portland cement, in both dry and wet sulfate cycle environments. Full article
(This article belongs to the Special Issue Low-Carbon Building Materials)
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10 pages, 1939 KiB  
Article
Study on the Preparation and Properties of Bridge Concrete Using Low Carbon Aggregates
by Ruishuang Jiang, Youjia Xing, Shuai Liu, Yongzhi Guo and Baolin Guo
Materials 2023, 16(1), 245; https://doi.org/10.3390/ma16010245 - 27 Dec 2022
Cited by 1 | Viewed by 998
Abstract
It is an outstanding solution for protecting the environment using manufactured sand instead of natural river sand in concrete. In this paper, tunnel granite muck was processed into low carbon, coarse and fine aggregates, and low carbon aggregates were used to prepare bridge [...] Read more.
It is an outstanding solution for protecting the environment using manufactured sand instead of natural river sand in concrete. In this paper, tunnel granite muck was processed into low carbon, coarse and fine aggregates, and low carbon aggregates were used to prepare bridge concrete. Meanwhile, the mechanical properties, anti-permeability, and frost resistance of concrete were investigated. The results demonstrated that the concrete prepared using low carbon aggregate had higher mechanical properties than concrete prepared using river sand. The chloride ion penetration resistance of concrete using low carbon aggregate is better than that of concrete using river sand, and frost resistance has been improved. Full article
(This article belongs to the Special Issue Low-Carbon Building Materials)
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11 pages, 1998 KiB  
Article
Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials
by Ping Zhang, Bingxin Zhang, Yanfeng Fang and Jun Chang
Materials 2022, 15(23), 8635; https://doi.org/10.3390/ma15238635 - 03 Dec 2022
Cited by 1 | Viewed by 986
Abstract
The use of tricyclic copolymer latex (AMPS) can effectively improve the carbonation resistance of sulphoaluminate cement. This paper investigated polymer AMPS and polycarboxylic acid to modify sulphoaluminate cement materials by exploring the carbonation level of sulphoaluminate cement paste and mortar and the strength [...] Read more.
The use of tricyclic copolymer latex (AMPS) can effectively improve the carbonation resistance of sulphoaluminate cement. This paper investigated polymer AMPS and polycarboxylic acid to modify sulphoaluminate cement materials by exploring the carbonation level of sulphoaluminate cement paste and mortar and the strength before and after carbonation. Then, the optimal dosage of polymer and polycarboxylic acid was obtained so that the carbonation resistance of sulphoaluminate cement reached the best state. The compressive strength was significantly improved by adding AMPS for sulphoaluminate cement paste and mortar. After carbonation, the strength decreased and combined with the carbonation level; it was concluded that the carbonation resistance of sulphoaluminate cement materials was the best when the optimal dosage of AMPS and polycarboxylic acid was 5% and 1.8%, respectively. Due to the addition of AMPS, the hydrated calcium aluminosilicate (C-A-S-H) and hydrated calcium silicate (C-S-H) gels, generated by the hydration of sulphoaluminate cement and the surface of unreacted cement particles, are wrapped by AMPS particles. The water is discharged through cement hydration. The polymer particles on the surface of the hydration product merge into a continuous film, which binds the cement hydration product together to form an overall network structure, penetrating the entire cement hydration phase and forming a polymer cement mortar with excellent structural sealing performance. To prevent the entry of CO2 and achieve the effect of anti-carbonation, adding polycarboxylic acid mainly improves the sample’s internal density to achieve the anti-carbonation purpose. Full article
(This article belongs to the Special Issue Low-Carbon Building Materials)
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