Correlation between microwave properties and compressive strength of engineered cementitious mortar

This article presents an application of microwave near-field technique into the cement-based material, which is designated as engineered cementitious mortar in civil material engineering. Parallel measurements of microwave near-field probing and conventional compression test were undertaken. The objective of this interdisciplinary research is to develop correlations of compressive strengths with electrical properties at microwave frequencies. First-order exponential regressions were applied to the measurement data. Simple yet accurate correlation models have been developed for strength prediction.