Recently, the early-age strength prediction for RC (reinforced concrete) structures has been
an important topic in the construction industry, relating to project-time reduction and …

Assessing concrete quality as construction goes on provides early warnings of potential
flaws and leads to timely corrections in mix proportioning and placement techniques …

Surface wave velocity measurement of concrete using ultrasonic sensors requires testing on
only one side of a member. Thus, it is applicable to concrete cast inside a form and is often …

Previous studies have not advanced a method for measuring the strength of concrete at an
early age. In this study, an embedded piezoelectric sensor module has been developed for …

Quality of mature concrete can be judged a great deal by monitoring its properties at the time
of pouring. However, modern day concrete varies greatly in composition and rheology that …

This study proposes a new model for estimating the setting and compressive strength
development times, which involve changes in the concrete condition at early ages, using the …

This study proposes model formulae for predicting the strength of concrete by analyzing the
relationships between the results of nondestructive testing (NDT) methods and the …

Repeated failures of concrete structures during construction reveal the urgent need for a
reliable testing method to perform in-situ monitoring of concrete properties at early ages. A …

During concrete production, simple and quick testing methods are desired for assessing
concrete properties. Non-destructive testing methods, NDT, are particularly valuable in the …

This study investigated the applicability of using ultrasonic wave signals in detecting early
fire damage in concrete. This study analyzed the reliability of using the linear (wave velocity) …