Transport properties and frost scaling resistance of carbonated blast-furnace slag mortars after sodium monofluorophosphate treatment

Authors: K. Sisomphon, O. Çopuroğlu, A. Fraaij
Paper category: conference
Book title: Concrete Durability and Service Life Planning – ConcreteLife’09
Editor(s): K. Kovler
Print ISBN: 978-2-35158-074-5
e-ISBN: 978-2-35158-085-1
Publisher: RILEM Publications SARL
Publication year: 2009
Pages: 138 – 145
Total Pages: 8
Language: English

Abstract: This study investigates the potential of using sodium monofluorophospate (Na-MFP) solution as a surface applied agent for carbonated blast furnace slag (BFS) mortar treatment. The 10% Na-MFP solution was used as a surface treatment compound, and the specimens were exposed to accelerated carbonation controlling 3% CO2 concentration with 65% relative humidity. The influence of Na-MFP application before and after carbonation attack was investigated. The results from the experiments reveal that the treatments significantly improve the frost scaling durability of carbonated BFS mortar. Moreover, the carbonation rate and capillary water uptake of the treated mortars were substantially decreased compared with the untreated specimens. The results of pre-treatment scheme are promising with respect to the potential use of Na-MFP as a self healing agent for BFS concrete subjected to carbonation and frost scaling problem.

Online publication: 2012-05-16
Publication Type: full_text
Public price (Euros): 0.00