ORCID
- Long yuan Li: 0000-0002-5982-0965
- Feiyu Shi: 0000-0002-1202-2990
Abstract
Electrical conductivity (EC) of concrete can be effectively improved by incorporating conductive materials such as carbon nanotubes in the mix design. However, mechanism for the EC enhancement to which the addition of conductive materials contributes has not yet been well understood. Besides, either sand or coarse aggregate in concrete also affects the EC of concrete, which complicates understanding of the mechanism. This paper presents a multiphase analytical model to investigate the effect of constituents on the effective EC of concrete. This multi-phase model was developed based on Maxwell model which was modified in this research to consider the effects of electrical conductivities and volume fractions of sand, cement and/or binder paste, coarse aggregate, and conductive inclusions on the effective EC of concrete. The model developed is validated against published experimental data. To highlight the features of the model, parametric analysis is further performed.
Publication Date
2025-02-21
Publication Title
Construction and Building Materials
Volume
464
ISSN
0950-0618
Keywords
Conductive inclusion, Electrical conductivity, Maxwell model, Multiphase model, Smart concrete
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Li, L., Li, Z., & Shi, F. (2025) 'Multiphase modelling of electrical conductivity of concrete with conductive inclusions', Construction and Building Materials, 464. Available at: 10.1016/j.conbuildmat.2025.140178
