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Convergence & Sustainable Technology in Building Materials (2nd Edition)

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 May 2024) | Viewed by 1460

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Guest Editor
Department of Architectural Engineering, Wonkwang University, 460 Iksan-daero, Iksan 54538, Republic of Korea
Interests: concrete; cement; aggregate; cementitious materials; fiber-reinforced concrete; high-performance concrete
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Special Issue Information

Dear Colleagues,

Recently, convergence and sustainable development have emerged as global issues. The construction industry is also making great efforts toward achieving sustainable development, such as reducing its emissions of greenhouse gases and developing eco-friendly building materials. In particular, in the field of building materials, various efforts are being made to achieve sustainable development, such as the development of convergence technology with other academic fields and the use of eco-friendly materials.

By using convergence technology and eco-friendly materials in the construction industry, it is possible to supplement the shortcomings of building materials, to improve their mechanical properties and durability, and to contribute to sustainable development.

From this perspective, this Special Issue deals with convergence and sustainable technologies in building materials.

It is my pleasure to invite you to submit a manuscript to this Special Issue. Full papers, communications, and reviews are all welcome.

Prof. Dr. Se-Jin Choi
Guest Editor

Manuscript Submission Information

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Keywords

  • convergence
  • building materials
  • substitute materials
  • fiber reinforcement
  • eco-friendly materials
  • hybrid materials
  • sustainable concrete
  • recycling materials

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Published Papers (1 paper)

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Research

14 pages, 7701 KiB  
Article
Compressive Strength and Chloride Ion Penetration Resistance of GGBFS-Based Alkali-Activated Composites Containing Ferronickel Slag Aggregates
by Jae-In Lee, Chae-Young Kim, Joo-Ho Yoon and Se-Jin Choi
Materials 2024, 17(19), 4922; https://doi.org/10.3390/ma17194922 - 9 Oct 2024
Viewed by 1048
Abstract
Various studies have reported the use of alkali-activated composites to enable sustainable development in the construction industry as these composites eliminate the need for cement. However, few studies have used ferronickel slag aggregates (FSAs) as an aggregate material for alkali-activated composites. Alkali-activated composites [...] Read more.
Various studies have reported the use of alkali-activated composites to enable sustainable development in the construction industry as these composites eliminate the need for cement. However, few studies have used ferronickel slag aggregates (FSAs) as an aggregate material for alkali-activated composites. Alkali-activated composites are environmentally friendly and sustainable construction materials that can reduce carbon dioxide emissions from cement production, which accounts for 7% of global carbon emissions. In the construction industry, various research was conducted to improve the performance of alkali-activated composites, such as changing the binder, alkali activator, or aggregate. However, research on the application of ferronickel slag aggregate as an aggregate in alkali-activated composites is still insufficient. In addition, the effect of ferronickel slag aggregate on the performance of alkali-activated composites when using calcium-based or sodium-based alkali activators has not been reported yet. Thus, this study prepared ground granulated blast-furnace slag-based alkali-activated composites with 0, 10, 20, and 30% FSA as natural fine aggregate substitutes. Then, the fluidity, micro-hydration heat, compressive strength properties, and resistance to chloride ion penetration of the alkali-activated composite were evaluated. The test results showed that the maximum temperature of the CF10, CF20, and CF30 samples with FSA was 35.4–36.4 °C, which is 3.8–6.7% higher than that of the CF00 sample. The 7 d compressive strength of the sample prepared with CaO was higher than that of the sample prepared with Na2SiO3. Nevertheless, the 28 d compressive strength of the NF20 sample with Na2SiO3 and 20% FSA was the highest, with a value of approximately 55.0 MPa. After 7 d, the total charge passing through the sample with Na2SiO3 was approximately 1.79–2.24 times higher than that of the sample with CaO. Moreover, the total charge decreased with increasing FSA content. Full article
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