Evaluation of concrete self-healing with different insertion techniques of chemical and bacterial solutions

This study analyzed the healing potential of concrete when using bacterial solutions and chemical solutions, evaluating different materials that can be used for its encapsulation. To encapsulate the agents, expanded clay and expanded perlite were used. To analyze the effectiveness of healing, visual analysis techniques were performed using a high-precision optical microscope and 3D microtomography. The results pointed to a better performance of the BAC.AE (bacterial solution in expanded clay) trait, using bacterial solution encapsulated in expanded clay, which was able to heal cracks of up to 0.57mm, with the traits BAC.PE (bacterial solution in expanded perlite), bacterial solution encapsulated in expanded perlite, and SS (sodium silicate), chemical solution added at the time of molding in replacement of water, healed cracks of 0.16 mm and 0.29 mm respectively.

• Autores: Pacheco F.; Loeff A.; Müller V.; Ehrenbring H.Z.; Christ R.; Modolo R.C.E.; Oliveira M.F.; Tutikian B.F.
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2022
• Institución: Corporación Universidad de la Costa
• Repositorio: REDICUC - Repositorio CUC
• Idioma: eng
• OAI Identifier: oai:repositorio.cuc.edu.co:11323/13678
• Acceso en línea: https://hdl.handle.net/11323/13678; https://repositorio.cuc.edu.co/
• Palabra clave: Bioconcrete; Self-healing; Self-repairing; Fissure; Bacteria
• Rights: openAccess
• License: Atribución 4.0 Internacional (CC BY 4.0)