WebApr 9, 2024 · According to Helene [ 13] and Tuutti [ 14 ], corrosion is generally associated with concrete carbonation (diffusion of CO 2) or diffusion of chlorides present in the atmosphere. Regardless of the corrosive process, it can be divided into two stages, initiation and propagation. WebJul 4, 2024 · The CO 2 uptake by concrete materials obviously increases after the demolition of the concrete structure as rapid carbonation can occur due to the increase …
Calculating CO2 Uptake for Existing Concrete …
WebMay 15, 2024 · The uptake of CO 2 is expressed by exposure surface ² [ kg CO 2 / m ²] as follows: (1) Uptake ( t) = CBC. X c ( t) where: CBC is the CO 2 binding capacity of the carbonated zone [ kg CO 2 per m 3 of concrete] and X c ( t) is the carbonation depth [ m] at an exposure time t [ year]. WebSep 5, 2013 · This paper presents a model that can calculate the uptake of CO2 in all existing concrete structures, including its uptake after service life. This is important for the calculation of the total CO2 uptake in the … homes for sale rivermist southport nc
Substantial global carbon uptake by cement carbonation
WebCarbonation occurs from the CO 2 exposed surfaces of the concrete structures into the concrete as shown in the figure below. Carbonation from one CO 2 exposed surface of … WebCarbonation is a slow and continuous process that progresses from the outer surface moving inwards. Over the lifecycle of concrete, carbonation will result in the reabsorption of around a third of the CO2 emitted when making cement, significantly reducing the whole-life CO2 footprint of both the cement and the concrete for which it is used. WebSep 5, 2013 · The model has been applied on data from Sweden and the results show a CO 2 uptake in 2011 in all existing structures of about 300 000 tonnes, which corresponds to about 17% of the total emissions … homes for sale river oaks houston har