Abstract
Surface scaling of bridge structures, caused by a moist
and saline environment with frost attack, should be
minimized to guarantee a long service life. For
frost-salt scaling, near surface material properties are
critical. Thus it is also essential to know how ageing
resulting from carbonation, drying and hydration will
change the durability performance of concrete. Laboratory
studies on the effect of surface ageing on frost scaling
were included in the Finnish DuraInt project (Effect of
Interacted Deterioration Parameters on Service Life of
Concrete Structures in Cold Environments, 2008 - 2011).
The effect of five different ageing conditions on the
freeze-thaw scaling performance of concrete was analysed,
using natural or accelerated ageing methods. Concrete
specimens were subject to one or two rounds of combined
ageing - degradation mechanisms. The effect of binder
type, w/b ratio, air content and air pore structure is
discussed. The results showed that ageing with
carbonation typically increased scaling. Binding material
type and air entrainment quality were also decisive.
| Original language | English |
|---|---|
| Title of host publication | Bridge Maintenance, Safety, Management, Resilience and Sustainability |
| Subtitle of host publication | Proceedings of the Sixth International IABMAS Conference, Stresa, Lake Maggiore, Italy, 8-12 July 2012 |
| Editors | Fabio Biondini, Dan M. Frangopol |
| Publisher | CRC Press |
| Pages | 974-981 |
| ISBN (Print) | 978-0-415-62124-3 |
| Publication status | Published - 2012 |
| MoE publication type | A4 Article in a conference publication |
| Event | 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 - Lake Maggiore, Stresa, Italy Duration: 8 Jul 2012 → 12 Jul 2012 |
Conference
| Conference | 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 |
|---|---|
| Abbreviated title | IABMAS 2012 |
| Country | Italy |
| City | Stresa |
| Period | 8/07/12 → 12/07/12 |
Keywords
- concrete
- durability
- ageing
- frost attack
- carbonation
- drying
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Cite this
Kuosa, H., Leivo, M., Holt, E., & Ferreira, R. M. (2012). Effect of varying surface ageing on frost-salt scaling. In F. Biondini, & D. M. Frangopol (Eds.), Bridge Maintenance, Safety, Management, Resilience and Sustainability: Proceedings of the Sixth International IABMAS Conference, Stresa, Lake Maggiore, Italy, 8-12 July 2012 (pp. 974-981). CRC Press.