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Effect of Environmental Conditions on Self-Healing Concrete for Durable and Sustainable Infrastructure

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 October 2023) | Viewed by 2377

Special Issue Editor


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Guest Editor
School of Computing and Engineering, University of West London, London W5 5RF, UK
Interests: self-healing concrete; structural behaviour versus sustainability and durability aspects; high-performance concrete; innovative materials for a lower carbon footprint
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Special Issue Information

Dear Colleagues,

Self-healing concrete is a new product. It can timely heal the cracks in itself through autogenous or autonomous approaches, which increases its durability and regains the lost strength. Cement replacement materials are important for a reduction in carbon footprint. In order to enhance the durability and sustainability of infrastructure concrete, self-healing concrete containing PVA fibres, bacteria, and/or a high content of cement-replacement materials, such as fly ash and Silica Fume, have been investigated in literature. However, further research is needed, particularly in areas such as self-healing low-carbon concrete containing new self-healing capsules/agents for sustainable and durable infrastructures. Therefore, this Special Issue calls for papers in (but not limited to) the following areas:

  • Currently used self-healing agents/bacteria;
  • PVA as self-healing additive;
  • Sustainability of self-healed concrete;
  • Self-healing concrete for repair of existing infrastructure;
  • Durability of self-healing concrete;
  • New developed self-healing agents;
  • Self-healing and health hazardous;
  • Structural health of self-healing concrete structures.

Dr. Ibrahim G. Shaaban
Guest Editor

Manuscript Submission Information

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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

  • currently used self-healing agents/bacteria
  • PVA as self-healing additive
  • sustainability of self-healed concrete
  • self-healing concrete for repair of existing infrastructure
  • durability of self-healing concrete
  • new developed self-healing agents
  • self-healing and health hazardous
  • structural health of self-healing concrete structures

Published Papers (1 paper)

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Review

20 pages, 1001 KiB  
Review
State-of-the-Art Report: The Self-Healing Capability of Alkali-Activated Slag (AAS) Concrete
by Nancy Hammad, Amr Elnemr and Ibrahim G. Shaaban
Materials 2023, 16(12), 4394; https://doi.org/10.3390/ma16124394 - 14 Jun 2023
Cited by 11 | Viewed by 1824
Abstract
Alkali-activated slag (AAS) has emerged as a potentially sustainable alternative to ordinary Portland cement (OPC) in various applications since OPC production contributed about 12% of global CO2 emissions in 2020. AAS offers great ecological advantages over OPC at some levels such as [...] Read more.
Alkali-activated slag (AAS) has emerged as a potentially sustainable alternative to ordinary Portland cement (OPC) in various applications since OPC production contributed about 12% of global CO2 emissions in 2020. AAS offers great ecological advantages over OPC at some levels such as the utilization of industrial by-products and overcoming the issue of disposal, low energy consumption, and low greenhouse gas emission. Apart from these environmental benefits, the novel binder has shown enhanced resistance to high temperatures and chemical attacks. However, many studies have mentioned the risk of its considerably higher drying shrinkage and early-age cracking compared to OPC concrete. Despite the abundant research on the self-healing mechanism of OPC, limited work has been devoted to studying the self-healing behavior of AAS. Self-healing AAS is a revolutionary product that provides the solution for these drawbacks. This study is a critical review of the self-healing ability of AAS and its effect on the mechanical properties of AAS mortars. Several self-healing approaches, applications, and challenges of each mechanism are taken into account and compared regarding their impacts. Full article
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