COMMENTS

  1. Self-healing concrete: Fabrication, advancement, and effectiveness for

    Since then, tremendous amounts of research on self-healing concrete have emerged in the 21st century. Self-healing techniques for concrete proposed in the literature can be classified in two different categories, namely material mixing (mineral admixtures, fibers, nanofillers and curing agents) and self-healing technologies (electrodeposition ...

  2. Self-Healing Concrete as a Prospective Construction Material: A Review

    1. Introduction. Self-healing is a well-established and well-known property of concrete due to its innate autogenous healing properties [].After a period of time, fissures may mend due to the ongoing hydration of clinker minerals or carbonation of calcium hydroxide (Ca(OH) 2).Autogenous healing, on the other hand, is restricted to minor cracks and is effective only when water is accessible ...

  3. (PDF) Self Healing Concrete

    The concept of self-healing concrete follows the concept of concrete damage p revention. Moreover, the da mage to be he aled is mainly considered the durability performance, to minimize. the cost ...

  4. Self-healing concrete: A scientometric analysis-based review of the

    This study's goal was to carry out a scientometric assessment-based review of the available data on self-healing concrete (SHC) research to assess its key components. The Scopus database was explored for 1294 related publications, and the data were analyzed by employing the VOSviewer software. The main conclusions are as follows: •

  5. Microbial self-healing in concrete: A comprehensive exploration of

    This article reviews various techniques for achieving self-healing in concrete, including bacterial-based self-healing. The research paper thoroughly reviews the influence of pH and temperature on bacterial growth and viability to promote self-healing concrete as an alternative technology for producing sustainable engineering structures.

  6. PDF Self-healing Concrete: a Review of Recent Research Developments and

    All these uncontrollable effective parameters may explain the reason for the wide range of healed crack width (5 μm to 300 μm) reported by researchers due to autogenous self-healing (Clear 1985, Jacobsen and Sellevold 1996, Reinhardt and Jooss 2003). Figure 2: Main mechanisms of autogenous self-healing in concrete.

  7. Self-healing concrete: A promising innovation for ...

    Self-healing concrete: A promising innovation for sustainability- a review. April 2022. Materials Today Proceedings 65 (11) April 2022. 65 (11) DOI: 10.1016/j.matpr.2022.04.393. Authors: Priya S ...

  8. Self-Healing Concrete: A Review of Recent Research Developments and

    A review of rec ent research developments and existing research gaps has been presented in this paper. With considering both cost and efficiency, improved autogenous healing can be claimed to be ...

  9. PDF Self-healing concrete for sustainable buildings. A review

    Self-healing concrete, although it is one of the most promising techniques, is still unable to repair wide cracks or potholes on roads. Currently, the technology can repair cracks of up to 32 mm deep and 0.97 mm wide (Dong et al. 2013; Mostavi et al. 2015; Qian et al. 2015; J. Wang et al. 2012, 2014a, b).

  10. Self-healing concrete for sustainable buildings. A review

    A total of 12 billion tons of concrete materials are produced annually, about 2 tons per person. More sustainable buildings are thus needed to decrease the carbon footprint of concrete infrastructures in the context of climate change. Crack formation is a major flaw of concrete structures. Although cracks are usually small and do not necessarily induce building collapse, cracks reduce the life ...

  11. A systematic review of bacteria-based self-healing concrete

    As a result, the environmental impact of bacterial concrete is heavily dependent upon the used content of urea. Further studies in this area can provide a more coherent and in-depth analysis of the environmental effects of bacteria-based self-healing concrete as well as bio-cementation. 10. Recommendations for future studies

  12. Research Status of Self-healing Concrete

    IOP Conference Series: Earth and Environmental Science. Paper • The following article is Open access. Research Status of Self-healing Concrete. Wei Wang1, Tieyi Zhong1, Xiaoxue Wang1 and Zhenyu He1. Published under licence by IOP Publishing Ltd IOP Conference Series: Earth and Environmental Science , Volume 218 , 2018 International Conference ...

  13. Materials

    Concrete is a material that is widely used in the construction market due to its availability and cost, although it is prone to fracture formation. Therefore, there has been a surge in interest in self-healing materials, particularly self-healing capabilities in green and sustainable concrete materials, with a focus on different techniques offered by dozens of researchers worldwide in the last ...

  14. (PDF) A Review on Self-Healing Concrete

    Chemical self -healing refers to the artificial healing of a crack by introducing chemical compounds. into it. In a small container, freshly mixed concrete is mix ed with chemical liquid reagent s ...

  15. Toward Self-Healing Concrete Infrastructure: Review of Experiments and

    Cement and concrete are vital materials used to construct durable habitats and infrastructure that withstand natural and human-caused disasters. Still, concrete cracking imposes enormous repair costs on societies, and excessive cement consumption for repairs contributes to climate change. Therefore, the need for more durable cementitious materials, such as those with self-healing capabilities ...

  16. PDF Self-healing concrete techniques and performance: A review

    intervention [15]. Over the past decade, there has been a notable expansion in research related to self-healing cementitious composites. This paper aims to provide a comprehensive overview of various self-healing techniques and their respective performance. The concept of self-healing concrete, covering both autonomous and

  17. Frontiers

    Conclusions. This paper has described the use of four techniques, developed as part of the Materials for Life research project, to facilitate the self-healing of concrete. Details of the design, construction, and subsequent testing and monitoring of five full-scale reinforced concrete trial panels have been given.

  18. Self-healing concrete: A promising innovation for sustainability- a

    Researchers have proven that concrete structures with a specific capacity for autonomous healing act up when the temperature is between 20 and 80° C and crack has a thickness of 0.05 and 0.20 mm [6]. The primary exposure by which conventional concrete changes to self-healing concrete is the way of easiness for carrying the healing infusion.

  19. Self-healing Roman concrete

    Self-healing Roman concrete. Nature Reviews Materials 8 , 80 ( 2023) Cite this article. Concrete is ubiquitous in contemporary architecture, but its production is associated with a large ...

  20. (PDF) A review paper on self healing concrete

    A Review Paper on Self Healin g Concrete. Salmabanu Luhar 1,*, Suthar Gourav2. 1 Research Scholar,Malaviya National Institute of Technology, Jaipur. 2 U.G. Student, Civil Engineering Department ...

  21. Self-healing concrete: A promising innovation for sustainability- a

    Self-healing concrete has established its effectiveness in repairing cracks, ultimately leading to improved durability. Additionally, there is a need to ensure that other crucial mechanical properties, particularly the strength of the intact (uncracked) material, remain uncompromised. ... This paper provides a reference for the research on the ...

  22. WPI Researcher Develops Self-Healing Concrete that Could Multiply

    The research paper, titled "An Enzymatic Self-Healing Cementitious Material," was published in Applied Materials Today, a peer-reviewed journal focused on cutting-edge applications of novel materials. ... Other research into creating self-healing concrete has focused on adding microbes and Bacillus megaterium, a spore-forming bacteria that ...

  23. A Review of Self-healing Concrete Research Development

    In this paper, natural, chemical and biological processes of self-healing concrete technologies were completely reviewed. The main focus of the study is for the biological processes. The review ...