A three-dimensional numerical research on probability characteristics of a crack hitting capsules for self-healing concrete

Title

A three-dimensional numerical research on probability characteristics of a crack hitting capsules for self-healing concrete

 Author

Pan, Z.
Schlangen, E.

Faculty

Civil Engineering and Geosciences

 Department

Structural Engineering

 Date

2015-12-31

 Abstract

In self-healing concrete, healing agents (including the bacteria and nutrients for the bacteria) are often sealed in capsules to survive the mixing of concrete. When the crack occurs, these capsules can be damaged, the healing agents can be released and the chemical actions can be activated. This research mainly focuses on the probability characteristics of a crack hitting the capsules. To conduct the research, the meso-scale models for two kinds of capsules, i.e., spherical and tubular capsules, are established. Statistical analysis is conducted to estimate the hitting probability and the number of capsules damaged by a crack based on the meso-scale models. With the numerical method proposed in this research, it is possible to estimate the efficiency of the self-healing system, as well as optimize the proper usage of the capsules. An application of this numerical method in a bacterial self-healing concrete based on Liapor (a light weight aggregate) is also included.

 To reference this document use:

http://resolver.tudelft.nl/uuid:010b5f41-1cda-41b8-b58e-0fbf5963f5a0

 Source

Proceedings of the 5th International Conference on Self-Healing Materials, ICSHM, Durham, USA, June 22-24, 2015. Extended abstract

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) The Authors(s)
Files
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