Abstract: This work used electrical resistivity over the first 72 h of hydration to measure the impact of air, sealed, and wet curing on mortar samples at different depths. The resistivity measurements provide new insights that ...

Abstract: The apparent diffusion coefficient (Dic) is important for modeling the service life of concrete. Most diffusion-based tests require the sample to be ponded for at least 28 days, and significant labor is required to ...

Abstract: Contractors are interested in removing and reusing the formwork from concrete walls as soon as possible to speed up construction. While the concrete may have sufficient strength, there is little information about the impact ...

Abstract: Widespread gradations of aggregates have been blended together to produce concrete mixtures with adequate performance; yet, poor performance of some of the concrete mixtures has been instigated by certain gradation ...

Abstract: A key parameter in concrete is the water-to-cementitious ratio (w/cm). Unfortunately, it can be difficult to ensure the w/cm of a concrete mixture is within the specified limit(s) in either fresh or hardened concrete. An ...

Abstract: This paper presents an iron wire trigger mechanism that will be used for a new generation of low-cost corrosion sensors that are wireless and do not require batteries or any other external power sources. The corrosion of ...

Abstract: This paper describes the results of an experimental study that uses radio frequency identification (RFID) technology to detect cracking in concrete elements. A RFID-based sensor is used to monitor the change in electrical ...