Crack Self-Healing Properties of Concrete with Adhesive

Cao, Qing Yu; Hao, Ting; Su, Bo

doi:10.4028/www.scientific.net/amr.919-921.1880

Cited by 8 publications

(4 citation statements)

References 1 publication

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“…The extent of flexural and CS, as well as other mechanical properties, recovery was tested and assessed (Table 2). Toughness and split TS assessments form a part of these tests [86][87][88]. Various studies reported that UPV and water permeability assessments form a part of these tests [89,90].…”

Section: Macrostructures Evaluationmentioning

confidence: 99%

Smart Bio-Agents-Activated Sustainable Self-Healing Cementitious Materials: An All-Inclusive Overview on Progress, Benefits and Challenges

et al. 2022

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Cementitious materials deteriorate progressively with the formation of cracks that occur due to diverse physical, chemical, thermal, and biological processes. Numerous strategies have been adopted to obtain cement-based self-healing materials and determine the novel self-healing mechanisms. The uses of microbes have been established to improve the thickness of the healed crack and mechanical properties of the concrete, a phenomenon seldom addressed in the literature. Based on these factors, this article comprehensively appraises the smart bio-agents-based autonomous healing performance of concrete to demonstrate the recent progress, expected benefits, and ongoing challenges. The fundamentals, design strategies, and efficacy of the smart bio-agents-activated self-healing cementitious materials are the recurring themes of this overview. Furthermore, the effects of various processing parameters on the performance of cementitious self-healing smart bio-agents are discussed in-depth. The achievements, knowledge gaps, and needs for future research in this ever-evolving area for the sustainability and resilience of the built environment are highlighted.

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Section: Macrostructures Evaluationmentioning

confidence: 99%

Smart Bio-Agents-Activated Sustainable Self-Healing Cementitious Materials: An All-Inclusive Overview on Progress, Benefits and Challenges

et al. 2022

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“…Besides conducting compressive and flexural tests [45,96,97], the performance of concrete has also been assessed by other mechanical tests such as split tensile and toughness tests [98,99] and stiffness tests [100]. Detection of crack initiation and its degree have been carried out using nondestructive complementary tests such as acoustic emission analysis [101], linear variable differential transformer [102] and ultrasonic pulse velocity [103,104].…”

Section: Characterization Of Self-healing Concretementioning

confidence: 99%

Exploits, Advances and Challenges in Characterizing Self-Healing Materials

Obayi¹,

Nnamchi²

2020

Advanced Functional Materials

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Characterization is an indispensable tool for understanding the structure–property-processing relationship in all material classes. However, challenges in self-healing materials characterization arise from the preparation routes, material types, damage mechanism and applications. Here, the discourse surveys the exploits, advances and challenges encountered within various characterization methods that have been exploited to reveal the damage-restoring processes in some material classes, namely metals, polymers, ceramics, concretes and coatings. Since there is no unified characterization procedure for the different classes of materials displaying self-repairing capabilities, the outcome of this discourse contributes to the advancement of knowledge about understanding self-healing testing procedures. An overview of methods, challenges and prospects toward self-healing property standardization at different length scales has been discussed.

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“…Self-healing cement has been widely used in many fields. Studies have shown that: self-healing cement can improve the mechanical properties (hardness, strength) and permeability of cement materials [3] , and can repair defects in building materials [4] .…”

Section: Introductionmentioning

confidence: 99%

Hardening Characteristics of Self-healing Cement Mortars

Liu

2021

E3S Web Conf.

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In water conservancy and transportation engineering, self-healing cement has been widely used. This paper researches the optimal water-cement ratio of self-healing cement mortar to obtain the best basic performance, and on this basis, researches the occasional effect of self-healing agent and fibers on the mechanical properties of cement mortar. In addition, the research on the shrinkage characteristics and impermeability of cement mortar by self-healing agent was carried out to provide the basis for the curing methods of bacterial cement in the project. Finally, the microstructure of self-healing cement provides a theoretical basis for the macroscopic performance. The results show that the best water-cement ratio of the self-healing cement mortar is 0.42, and the fiber can effectively improve the toughness of the material. In addition, bacterial can increase the auto-shrinkage and impermeability of cement. These results will offer valuable experience for experimenters to assist the experiment work.

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Crack Self-Healing Properties of Concrete with Adhesive

Cited by 8 publications

References 1 publication

Smart Bio-Agents-Activated Sustainable Self-Healing Cementitious Materials: An All-Inclusive Overview on Progress, Benefits and Challenges

Smart Bio-Agents-Activated Sustainable Self-Healing Cementitious Materials: An All-Inclusive Overview on Progress, Benefits and Challenges

Exploits, Advances and Challenges in Characterizing Self-Healing Materials

Hardening Characteristics of Self-healing Cement Mortars

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