Experimental and numerical study of crack behaviour for capsule-based self-healing cementitious materials

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Experimental and numerical study of crack behaviour for capsule-based self-healing cementitious materials

Journal Article (2017)

Author(s)

Le Yang Lv (Shenzhen University)

Hongzhi Zhang (TU Delft - Civil Engineering & Geosciences)

Erik Schlangen (TU Delft - Civil Engineering & Geosciences)

Zhengxian Yang (Fuzhou University, Washington State University Pullman)

Feng Xing (Shenzhen University)

Research Group

Materials and Environment

Numerical simulation Self-healing materials X-ray microtomography Crack behaviour

DOI related publication

https://doi.org/10.1016/j.conbuildmat.2017.08.157 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:a1664665-898c-481b-b3cb-431175b801c0

More Info

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Publication Year

2017

Language

English

Research Group

Materials and Environment

Volume number

156

Pages (from-to)

219-229

Downloads counter

152

Abstract

A 2D lattice model was constructed to simulate crack process of in shell-interlayer-cement paste zone. The simulated tensile strength was validated by an experimental uniaxial tensile test and used as the input for a 3D lattice model, which was constructed to perform mechanical analysis based on a series of 2D X-ray microtomography images. The fracture behaviour of the 3D lattice model with assigned mechanical properties gave a similar crack pattern and tensile strength as the real structure. This study is expected to provide a feasible approach for investigating the fracture and trigger behaviour miccrocapsules embedded in a self-healing cementitious system.