Abstract
This paper presents the influence of cyclic wetting and drying on the absorption characteristics of cover-zone concrete. Portland cement concrete and concrete with partial replacement with fly ash and ground-granulated blast-furnace slag were used in the experimental program, with water and chloride solution applied at the suction surface. Electrical techniques were utilized in conjunction with a surface-applied, volumetric-gain method to study water and ionic movement. Monitoring the variation of electrical response across electrodes embedded within the cover region provided information on the depth and rate of water penetration, ionic ingress, and evidence of continuing hydration and pozzolanic activity. By combining depth-of-penetration data with the cumulative volumetric uptake of the samples, the effective porosity of the surface region could be estimated. Ponding studies were also undertaken on replicate samples to study ionic ingress.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.