Current progress on biological self-healing concrete. (November 2015)

• Record Type: Journal Article
• Authors: Guo, Y. C.; Wang, X.; Yan, Z.; Zhong, H.
• Is Part Of: Materials research innovations. Volume 19(2015)Supplement 8
• Page Start: S8-750
• Page End: S8-753
• Publication Date: 2015-11
• Subjects: Cement-based materials -- Biomineralisation -- Self-healing -- Concrete -- Research progress; Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891715Z.0000000001792
• Languages: English
• ISSNs: 1432-8917

Abstract

Abstract : This review outlines the specific methods and concepts of self-healing that have been adopted locally and globally. Based on the need for manual intervention, these methods and concepts of self-healing can be classified as passive or active. The theory of biological self-healing concrete is also analysed. The mechanism by which the diagenesis of biomaterials triggers and promotes self-healing in the tiny cracks of cement is explained. This paper introduces a biological multiple-triggered-switch scheme for the self-healing of cement-based cracks. The role of this mechanism in the continued and feasible self-healing of cracks is analysed.