Self-healing concrete: A scientometric analysis-based review of the research development and scientific mapping

He, Xiaohong; Amin, Muhammad; Khan, Kaffayatullah; Ahmad, Waqas; Althoey, Fadi; Vatin, Nikolai Ivanovich

doi:10.1016/j.cscm.2022.e01521

Cited by 8 publications

(6 citation statements)

References 95 publications

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“…The conductivity of the solution was tested every 30 min. The solution conductivity drop index was calculated by equation (2). The solution was placed in water baths at different temperatures to ensure its temperature.…”

Section: Conductivity Test Of Complexing Agent Solutionmentioning

confidence: 99%

“…The formation of cracks in concrete not only impairs its mechanical properties and durability but also impacts the service life of concrete structures [1]. More seriously, detection and repair of cracks in concrete structures can be a challenging task, especially for concrete structures serving in complex environments [2]. Therefore, there is an urgent need to develop concrete materials with less cracking tendency or self-healing ability following the occurrence of cracks.…”

Section: Introductionmentioning

confidence: 99%

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Self-healing properties of mortar with crystalline admixture: experimental investigation and parameter optimization

Liu,

Liang,

Jiang

et al. 2024

Smart Mater. Struct.

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The inclusion of crystalline admixture (CA) is a highly effective method for enhancing the self-healing properties of mortar. This study examined the complexing abilities of different complexing agents under varying temperatures, pH levels, and ion species in order to select effective complexing agents for diverse environments, as complexing agents play a crucial role in CAs. After determining the type of complexing agent, an orthogonal array design was used to optimize the components of CA, and the strengthening mechanism of CA for mortar was discussed through microstructure analysis. The results showed that the complexation behavior of triethanolamine (TEA) and glycine performed better than sodium citrate (SC) for different pH levels, temperatures, and ion species. Meanwhile, TEA and glycine showed complementarity at different stages, so TEA and glycine were used as complexing agents in this study. Based on the orthogonal experiment, the optimal contents of Na2SiO3, Na2CO3, TEA, glycine, Ca(COOH)2, and nano-SiO2 in CA were determined to be 1.0%, 1.0%, 0.04%, 1.0%, 0.5%, and 1.0%, respectively. Under the synergistic effect of TEA and glycine, the hydration of aluminate and ferrialuminate was accelerated, and the hydration degree of cement paste was increased. At 28 d, the contents of CaCO3, C-S-H gel, and ettringite of cement paste with CA were higher than these of plain paste, but its Ca(OH)2 content was lower. Although the Ca(OH)2 content in the cement paste with CA was lower, the Ca(OH)2 crystal structure filled in the pores was larger. Therefore, the mortar mixed with CA exhibited higher compressive strength, water impermeability, and self-healing ability.

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Section: Conductivity Test Of Complexing Agent Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self-healing properties of mortar with crystalline admixture: experimental investigation and parameter optimization

Liu,

Liang,

Jiang

et al. 2024

Smart Mater. Struct.

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“…This paper adopts a bibliographic analysis methodology to delve into the most significant technologies associated with self-healing concrete [19]. It aims to identify key research countries/regions and highlight prominent research institutions in this field [20]. The overarching goal is to provide a comprehensive overview of the current state of self-healing concrete technology, drawing insights from existing literature, and shedding light on the critical advancements that have shaped this domain [21].…”

Section: Introductionmentioning

confidence: 99%

“…2 By scrutinizing a vast array of scholarly articles, this analysis seeks to uncover key themes, technologies, and contributors within the self-healing concrete domain [22]. The geographical distribution of research efforts will be explored, providing insights into countries and regions that have played pivotal roles in advancing self-healing concrete technology [20]. Furthermore, the examination extends to research institutions that have significantly contributed to the development of self-healing concrete technologies [23].…”

Section: Introductionmentioning

confidence: 99%

A Bibliography Study of Self-Healing Concrete

Ding

2024

Preprint

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This paper delves into the critical issue of concrete cracks, a common consequence of environmental factors and external forces, and their potential impact on the structural integrity of buildings. Recognizing the urgency of addressing this issue, the concept of self-healing concrete has emerged, aiming to revolutionize the construction industry by autonomously repairing cracks and minimizing the need for labor-intensive and time-consuming manual interventions. The paper employs a bibliographic analysis methodology to comprehensively explore the most significant technologies associated with self-healing concrete, identifying key research countries/regions and prominent research institutions in this field. Through an examination of scholarly articles, the analysis seeks to uncover key themes, technologies, and contributors within the self-healing concrete domain. Insights into the geographical distribution of research efforts and the roles of influential research institutions are provided, shedding light on collaborative networks and knowledge-sharing dynamics that drive innovation in this evolving field.

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“…Cement concrete is a widely acknowledged material that offers several advantageous features, including ease of construction, high strength, low cost, and high stiffness, which make it extensively utilized in the engineering domain [ 1 ]. However, due to factors such as temperature variations, loading, and non-uniform settlement, concrete is susceptible to cracking [ 2 ]. With an increase in service time, the ingress of aggressive ions such as chloride ions [ 3 , 4 ] and sulfate ions [ 5 , 6 ] from the environment can cause further damage to the interior of the concrete, resulting in reducing the impermeability and durability of the concrete structure [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Crystalline Admixture on the Self-Healing Performance and Mechanical Properties of Mortar with Internally Added Superabsorbent Polymer

Zhang

Liu

et al. 2023

Materials

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Crystalline admixture (CA) can be incorporated into concrete to achieve self-healing of concrete cracks. In this study, both CA and superabsorbent polymer (SAP) were used as self-healing agents to investigate the effects of CA on the self-healing performance and mechanical properties of mortar with internally added SAP at different self-healing ages. The healing effect of cracks in mortar is assessed by crack observation and impermeability. The structure and composition of the filler in the cracks were analyzed by microscopic experiment. The experimental results indicate that CA enhances the healing of cracks in mortar specimens. The chemical reactions of CA primarily contribute to significantly improving the early-age crack-healing ability of the specimens, and the water absorption and expansion ability as well as the internal curing effect of SAP also facilitate the crack-healing process. Increasing the CA content leads to an increase in the Ca/Si ratio of C-S-H, causing a transition from a layered structure to a more compact needle-like structure. When 4% CA was added to the mortar, it resulted in an adequate formation of needle-like C-S-H structures, which eventually penetrate and fill the pits formed by SAP, compensating for the strength loss caused by SAP.

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Self-healing concrete: A scientometric analysis-based review of the research development and scientific mapping

Cited by 8 publications

References 95 publications

Self-healing properties of mortar with crystalline admixture: experimental investigation and parameter optimization

Self-healing properties of mortar with crystalline admixture: experimental investigation and parameter optimization

A Bibliography Study of Self-Healing Concrete

The Effects of Crystalline Admixture on the Self-Healing Performance and Mechanical Properties of Mortar with Internally Added Superabsorbent Polymer

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