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Polymer Admixture-Modified Cement-Based Materials

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 1124

Special Issue Editor


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Guest Editor
School of Transportation Equipment and Ocean Engineering, Dalian Maritime University, Dalian, China
Interests: polymer materials; high-performance concrete; multi-scale analysis; rheological properties; fracture properties; durability

Special Issue Information

Dear Colleagues,

The application of polymer admixtures in cement-based materials has become increasingly widespread. Researchers have gained a deeper understanding of the interaction mechanisms and performance impacts of polymer admixtures on cement-based materials. Compared to traditional cement-based materials, polymer admixtures can significantly enhance the properties of cement-based materials, such as rheological properties, mechanical properties, fracture toughness, and durability. This Special Issue focuses on the latest advancements in understanding the performance implications of polymer admixtures on cement-based materials and their the interaction mechanisms. We welcome contributions exploring the use of various polymer admixtures, including, but not limited to, superplasticizers, retarders, air-entraining agents, nanocellulose, and silica aerogel, and their impact on the properties of cement-based materials. This Special Issue aims to showcase innovative research in the field, fostering the further development of high-performance and sustainable cement-based materials.

Prof. Dr. Yingfang Fan
Guest Editor

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Keywords

  • polymers admixtures
  • cement-based materials
  • multi-scale analysis
  • rheological properties
  • mechanical properties
  • fracture properties
  • durability

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Published Papers (1 paper)

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Research

20 pages, 8144 KiB  
Article
Failure Behavior of Nano-Metakaolin Concrete Under Splitting Tension Based on Digital Image Correlation Method
by Hao Chen, Yingfang Fan, Qiuchao Li and Chang Peng
Polymers 2024, 16(24), 3482; https://doi.org/10.3390/polym16243482 - 13 Dec 2024
Cited by 1 | Viewed by 802
Abstract
Nano metakaolin (NMK) has attracted considerable interest for its potential to improve the durability of cementitious materials. However, the effect of NMK on the splitting tensile performance of concrete has not been systematically investigated. This study investigates the splitting tensile performance of NMK [...] Read more.
Nano metakaolin (NMK) has attracted considerable interest for its potential to improve the durability of cementitious materials. However, the effect of NMK on the splitting tensile performance of concrete has not been systematically investigated. This study investigates the splitting tensile performance of NMK concrete and analyzes its failure behavior under splitting load. Different NMK dosages (0%, 1%, 3%, 5%, and 7%) were considered, and splitting tensile tests were conducted. The crack propagation process, crack width, and crack growth rate on the surface of NMK concrete during the splitting tensile test are analyzed using the Digital Image Correlation (DIC) method. The mechanisms by which NMK affects the splitting tensile performance of concrete were examined using X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy/Energy Dispersive Spectroscopy (SEM/EDS), and Thermogravimetric Analysis (TG). The results indicate that the incorporation of NMK enhances the splitting tensile performance of concrete. Concrete with 5% NMK addition exhibited the highest splitting tensile strength, with an increase of 17.4% compared to ordinary concrete. NMK improved the cracking resistance and overall integrity under splitting tensile load. With 5% NMK addition, the surface crack length, width, and main crack propagation rate of the concrete decreased by 4.5%, 35.3%, and 29.6%, respectively. NMK contributed to a denser internal structure of the concrete, promoted the formation of C-S-H gel, and increased the degree of cement hydration. Moreover, a lower thickness and Ca/Si ratio of interfacial transition zone (ITZ) were observed in NMK concrete. The ITZ thickness and Ca/Si ratio of concrete with 5% NMK were reduced by 64.4% and 85.4%, respectively, compared to ordinary concrete. In summary, the influence mechanism of NMK addition on the splitting tensile strength and failure behavior of concrete is explored in this study, providing experimental data to support the application of NMK concrete in practical engineering. Full article
(This article belongs to the Special Issue Polymer Admixture-Modified Cement-Based Materials)
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