Print Email Facebook Twitter Corrosion products resulting from carbonation acting upon chloride-induced corrosion in 22 years old blast furnace slag concrete Title Corrosion products resulting from carbonation acting upon chloride-induced corrosion in 22 years old blast furnace slag concrete Author Russo, N. Rossi, E. Garcia, S. Bijleveld, J. Nijland, T.G. Polder, R.B. Lollini, F. Publication year 2020 Abstract Service life of reinforced concrete structures is usually limited to initiation of corrosion, whilst in practice corrosion in many structures is already in the propagation stage. To better understand the processes that leads to the cracking and detachment of concrete cover during this phase, the knowledge of corrosion products development in time is required. This paper investigates the corrosion products for a blast furnace slag cement concrete, in which natural carbonation acted upon original chloride-induced corrosion, . The sample was cast in 1998, after curing was subjected to wet-dry cycles to enhance chloride penetration, and since then was exposed to unsheltered outdoor conditions. Corrosion products and textures at the concrete-steel interface and late carbonate veinlets within them have been characterized by a combination of optical microscopy, SEM, Raman spectroscopy and CT scanning. Subject Architecture and BuildingBuildings and Infrastructures2015 Urbanisation To reference this document use: http://resolver.tudelft.nl/uuid:1924b325-18b7-43d0-b023-8b46820106a1 TNO identifier 884981 Source Proceedings CACCRS 2020 - Capacity Assessment of Corroded Reinforced Concrete Structures, 1-8 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.