109. Salt frost scaling of SCC related to curing regime and air void system

Title: 109. Salt frost scaling of SCC related to curing regime and air void system
Author(s): V.B. Bosiljkov, D. Duh, R. Zarnic
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 729 - 734
Total Pages: 6
Nb references: 8
Language: English

Abstract: The paper deals with the influence of different curing regimes on salt frost scaling of aerated self-compacting concrete with air content of (8±1)% and age at exposure to freezing medium (3% NaCl) equalling 35 days. The curing regimes differ in curing temperature (at fixed wet curing period) and in wet curing period (at fixed temperature). Obtained results show that also for the aerated self-compacting concrete, as for vibrated concrete mixtures, salt frost scaling is influenced by air void characteristics of hardened concrete, which are dependent on temperature when mixing concrete. The most important influencing parameter seems to be true spacing factor, which represents the mean half-distance between air voids that are not filled with water and is for particular air void system of the self-compacting concrete dependent on the degree of saturation of the concrete. However, also carbonation of the superficial layers could have some influence on salt frost scaling resistance of the selfcompacting concrete.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00