Abstract

The ability to be able to predict the state of dryness of a concrete floor slab is a practical need in the construction industry. Current popular methods, including the surface hygrometer and vapour emission tests, only indicate surface dryness, with consequent uncertainties in the quantity of residual moisture deep within the slab. This paper describes the variation in moisture condition with depth for a number of slabs under different drying conditions, as established using a new probe which can reliably determine the relative humidity at any depth. From this it is concluded that results from the conventional tests need to be treated with caution due to wide variations in the residual moisture, which could give rise to defects in impermeable floor coverings due to trapped moisture leading to excessive vapour pressures.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.