High-Strength, High-Ductility, Low-Carbon and Sustainable Modern Cementitious Materials

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

Deadline for manuscript submissions: closed (30 April 2025) | Viewed by 484

Special Issue Editors


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Guest Editor
School of Civil Engineering and Transportation, Guangzhou University, Guangzhou 510000, China
Interests: engineered cementitious composites (ECCs); sustainable construction materials
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong
Interests: sustainable construction materials and structures; smart pavement materials and structures; nano concrete
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Civil Engineering and Transportation, Guangzhou University, Guangzhou 510000, China
Interests: sustainable cement-based materials

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Guest Editor
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong
Interests: cement carbonation; phase change thermal storage concrete; UHPC

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Guest Editor
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong
Interests: concrete rheology; low-carbon concrete
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cement and concrete are the backbone of modern infrastructure, yet their performance limitations and environmental impact present ongoing challenges. Traditional cementitious materials often struggle to meet the demands of contemporary engineering projects, particularly in terms of durability, mechanical properties, and sustainability. Over the past decade, significant advancements have been made in developing high-performance cement and concrete, incorporating novel materials and techniques to enhance structural integrity and longevity while reducing the carbon footprint of production. Despite these breakthroughs, widespread adoption of these advanced materials remains hindered by issues such as cost, compatibility with existing construction practices, and the complexity of optimizing their performance. This Special Issue aims to highlight the most recent developments in high-performance cement and concrete, exploring innovative solutions that push the boundaries of material science and engineering. Contributions are welcome to focus on the intersection of performance improvement, environmental impact, and practical applications.

Dr. Yanlin Huo
Dr. Dong Lu
Dr. Chunran Wu
Dr. Miao Ren
Dr. Junyi Zhang
Guest Editors

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Keywords

  • high-performance cementitious materials
  • sustainable concrete technologies
  • durability and mechanical properties
  • low-carbon concrete
  • nanotechnology in cement and concrete
  • advanced admixtures and additives
  • long-term performance of high-performance concrete
  • future perspectives on sustainable and high-performance cement technologies

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Published Papers (1 paper)

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Research

15 pages, 6104 KiB  
Article
Investigation of Fresh Properties of Self-Leveling Cement-Based Pastes with CFB Fly Ash as an SCM
by Chun-Ran Wu, Wei Tang, Yan-Lin Huo, Bao-Jian Zhan and Shi-Cong Kou
Buildings 2025, 15(6), 966; https://doi.org/10.3390/buildings15060966 - 19 Mar 2025
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Abstract
The incorporation of circulating fluidized bed (CFB) fly ash into self-leveling cement-based (SLC) paste production presents significant environmental advantages. However, its addition deteriorates the fresh properties of the paste, posing challenges for practical implementation. This research examined the fresh properties of SLC paste [...] Read more.
The incorporation of circulating fluidized bed (CFB) fly ash into self-leveling cement-based (SLC) paste production presents significant environmental advantages. However, its addition deteriorates the fresh properties of the paste, posing challenges for practical implementation. This research examined the fresh properties of SLC paste blended with CFB fly ash, emphasizing fluidity, rheological characteristics, and bleeding rate. To enhance flowability, polycarboxylate superplasticizer (PCE) was incorporated, with particular emphasis on its interaction with CFB fly ash. The findings reveal that adding CFB fly ash to cement-based paste significantly decreased fluidity while increasing yield stress and plastic viscosity. Incorporating 20 wt.% CFB fly ash reduced paste fluidity by 51.4%, while plastic viscosity and yield stress increased by factors of 2.3 and 73, respectively. While PCE enhanced the fluidity of the blended paste, its water-reducing efficiency diminished, and the bleeding rate of the paste increased with higher CFB fly ash dosage. The water-reducing capability of PCE in the CFB fly ash-blended cement paste with 20 wt.% CFB fly ash decreased by 40.0%, and the bleeding rate of the paste increased from 0.6% to 6.7%. This effect was primarily attributed to the poor compatibility between PCE and CFB fly ash. The decline in PCE efficiency with higher CFB fly ash content, along with its lower adsorption capacity on CFB fly ash compared to cement particles, further confirmed this incompatibility. Full article
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