Title
The application of modified hydrotalcites as chloride scavengers and inhibitor release agents in cement mortars
Author
Yang, Z.
Fischer, H.
Polder, R.B.
Contributor
Grantham, M. (editor)
Publication year
2014
Abstract
Owing to the unique molecular structure and high ion exchange capacity, hydrotalcites are believed to have a potential to be modified and tailor-made as an active component of concrete. In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were incorporated into cement mortars with two dosage levels (replacing 5% and 10% cement by mass) and a constant water-to-(cement+MHT) ratio of 0.50. A designated testing programme including strength test, porosity test, and rapid chloride migration and diffusion test were employed to investigate the effect of modified hydrotalcites on chloride penetration in cement mortar. The results reported in this study showed the incorporation of MHT-pAB at 5% dosage in mortar specimens produced a notably improved chloride diffusion resistance with little or no influence on the development of mechanical strength.
Subject
Building Engineering & Civil Engineering
SR - Structural Reliability
TS - Technical Sciences
Buildings and Infrastructure
Architecture
Built Environment
To reference this document use:
http://resolver.tudelft.nl/uuid:b90eead1-da14-4869-bc42-4b751d98789a
TNO identifier
514654
Publisher
CRC Press
Source
Concrete Solutions 2014, 760-768
Document type
bookPart