Crack healing performance of bacteria-based mortar under sustained tensile loading in marine environment

Khan, Muhammad Basit Ehsan; Shen, Luming; Dias-da-Costa, D.

doi:10.1016/j.cemconcomp.2021.104055

Cited by 20 publications

(2 citation statements)

References 46 publications

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“…Alumina nanofibers [59,203,244,247] . Cellulose nano-fibrils [59,203,244] Sporosarcina halophila bacteria [248,249] Freeze-thaw attack with deicing salts…”

Section: Pc [234] Scmsmentioning

confidence: 99%

A review of the efficiency of self-healing concrete technologies for durable and sustainable concrete under realistic conditions

Cappellesso

Summa

Pourhaji

et al. 2023

International Materials Reviews

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Self-healing is recognized as a promising technique for increasing the durability of concrete structures by healing cracks, thereby reducing the need for maintenance activities over the service life and decreasing the environmental impact. Various self-healing technologies have been applied to a wide range of cementitious materials, and the performance has generally been assessed under 'ideal' laboratory conditions. Performance tests under ideal conditions, tailored to the self-healing mechanism, can demonstrate the self-healing potential. However, there is an urgent need to prove the robustness and reliability of self-healing under realistic simulated conditions and in real applications before entering the market. This review focuses on the influence of cracks on degradation phenomena in reinforced concrete structures, the efficiency of different healing agents in various realistic (aggressive) scenarios, test methods for evaluating self-healing efficiency, and provides a pathway for integrating self-healing performance into a life-cycle encompassing durability-based design.

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“…Alumina nanofibers [59,203,244,247] . Cellulose nano-fibrils [59,203,244] Sporosarcina halophila bacteria [248,249] Freeze-thaw attack with deicing salts…”

Section: Pc [234] Scmsmentioning

confidence: 99%

A review of the efficiency of self-healing concrete technologies for durable and sustainable concrete under realistic conditions

Cappellesso

Summa

Pourhaji

et al. 2023

International Materials Reviews

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“…Consequently, so-called protection solutions and organic precursors have been introduced [41,77,84]. Finally, the process of microbial-induced calcite precipitation (MICP) can be used in a cementitious matrix composed of three main elements: (a) an alkali-resisting, spore-forming, Gram-positive bacterium, in an inactive form, which can be activated upon exposure to water, (b) a nutrient or precursor compound, and (c) a carrier compound for protection of bacteria from the external pressure applied by concrete [85].…”

Section: Biological Self-healing Processmentioning

confidence: 99%

State-of-the-Art Report: The Self-Healing Capability of Alkali-Activated Slag (AAS) Concrete

2023

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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.

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Experimental investigation of self-healing properties of bacteria concrete with basalt and flax fibers by direct application

Rajesh,

Sumathi,

Gowdhaman

2025

Advances in Sustainable Materials

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Crack healing performance of bacteria-based mortar under sustained tensile loading in marine environment

Cited by 20 publications

References 46 publications

A review of the efficiency of self-healing concrete technologies for durable and sustainable concrete under realistic conditions

A review of the efficiency of self-healing concrete technologies for durable and sustainable concrete under realistic conditions

State-of-the-Art Report: The Self-Healing Capability of Alkali-Activated Slag (AAS) Concrete

Experimental investigation of self-healing properties of bacteria concrete with basalt and flax fibers by direct application

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