A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbonation of Concrete in a Climate Change Context
Civil engineering structures are primarily made of reinforced concrete. These structures are subjected, from their construction, to the phenomenon of carbonation which can lead to the corrosion of their steel reinforcements. The Intergovernmental Panel on Climate Change (IPCC) predicts a considerable increase in the concentration of carbon dioxide in the air. Carbon dioxide penetrates the pores of cement‐based material, and is then dissolved into the concrete's interstitial solution and reacts with portlandite in order to form calcium carbonate. In order to understand the exposition risks for the various scenarios evoked, an experimental study of accelerated carbonation on concretes of different mixtures was performed. The results show that porous limestone sand and recycled aggregates induce an increase in carbonation front propagation. The results of carbonation tests show that the water‐to‐cement ratio has a direct effect on the carbonation rate for any type of concrete.
Carbonation of Concrete in a Climate Change Context
Civil engineering structures are primarily made of reinforced concrete. These structures are subjected, from their construction, to the phenomenon of carbonation which can lead to the corrosion of their steel reinforcements. The Intergovernmental Panel on Climate Change (IPCC) predicts a considerable increase in the concentration of carbon dioxide in the air. Carbon dioxide penetrates the pores of cement‐based material, and is then dissolved into the concrete's interstitial solution and reacts with portlandite in order to form calcium carbonate. In order to understand the exposition risks for the various scenarios evoked, an experimental study of accelerated carbonation on concretes of different mixtures was performed. The results show that porous limestone sand and recycled aggregates induce an increase in carbonation front propagation. The results of carbonation tests show that the water‐to‐cement ratio has a direct effect on the carbonation rate for any type of concrete.
Carbonation of Concrete in a Climate Change Context
Kotronis, Panagiotis (editor)
2019-10-15
20 pages
Article/Chapter (Book)
Electronic Resource
English
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