A Review on Bacterial and Microcapsule-Based Chemical Self-Healing Concrete: Experimental Performance and Environmental Implications

سال انتشار: 1404
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 37

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شناسه ملی سند علمی:

NCIE02_117

تاریخ نمایه سازی: 13 تیر 1404

چکیده مقاله:

This paper comprehensively critiques two promising self-healing tactics: microcapsule-based chemical healing and bacterial-brought on calcium carbonate precipitation. Experimental effects reveal that microencapsulated polyurethane and superabsorbent polymers can efficaciously seal cracks up to ۰.۳ mm, even as bacterial concrete incorporating Bacillus traces achieves superior crack closure through microbially-mediated mineralization. Non-adverse evaluation strategies, particularly ultrasonic checking out, display promise for monitoring recovery efficiency in area applications. While laboratory effects are encouraging, standardization of testing protocols and cost-powerful manufacturing methods are needed to facilitate commercialization. These self-healing technologies offer the potential to reduce infrastructure maintenance costs by ۳۰-۴۰% while significantly extending service life, in moist environments prone to reinforcement corrosion. The paper concludes with recommendations for future research guidelines to bridge the gap between laboratory improvements and practical engineering applications.

نویسندگان

Saeed Hamidi

B.Sc. in Civil Engineering, Civil Engineering Department, University of Birjand, Birjand, Iran

Hashem Jahangir

Department of Civil Engineering, Research Group of Novel Technologies in Civil Engineering, University of Birjand, Birjand, Iran

Ali Mohammad Mohammadi

M.Sc. Student, Civil Engineering Department, University of Birjand, Birjand, Iran