In recent few years, significant improvement has been made in developing largescale 3D
printers to accommodate the need of industrial-scale 3D printing. It is of great feasibility to …

This paper summarizes the authors' recent pioneering research work in piezoceramic-based
smart aggregates and their innovative applications in concrete civil structures. The basic …

At early ages of concrete structures, strength monitoring is important to determine the
structures' readiness for service. Piezoelectric-based strength monitoring methods provide …

Over the past three decades, the double-K fracture model has received widespread
recognition and application in the field of engineering material fracture. As the …

Abstract Very early age (0–20 h) concrete hydration is a complicated chemical reaction.
During the very early age period, the concrete condition dramatically changes from liquid …

Ultrasonic transmission measurements allow the continuous monitoring of the setting of both
mortar and concrete samples, which is important to determine for instance the formwork …

In this paper, the applicability of the ultrasonic wave transmission method to estimate the
initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity …

In this study, the early-age hydration process of cement paste is characterized using the rate
of change in the impedance measured by electrochemical impedance spectroscopy (EIS) …

Until now, the standardized methods developed for the detection of initial and final setting
are destructive and non-continuous. The well-established ultrasonic pulse transmission …

The objective of this paper is to investigate effects of air voids on ultrasonic wave
propagation in fresh cement pastes, and relate ultrasonic wave parameters to cement setting …