Modelling of concrete carbonation; is it a process unlimited in time and restricted in space?
PBN-AR
Instytucja
Wydział Inżynierii Lądowej (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Bulletin of the Polish Academy of Sciences, Technical Sciences
ISSN
0239-7528
EISSN
Wydawca
PAN
DOI
Rok publikacji
2015
Numer zeszytu
1
Strony od-do
43-54
Numer tomu
63
Identyfikator DOI
Liczba arkuszy
0.55
Autorzy
Słowa kluczowe
en
concrete carbonation, carbonation models review, hyperbolic model of carbonation, self-terminating nature of carbonation, accelerated testing of carbonation, long-term natural tests of carbonation.
Streszczenia
Język
en
Treść
The aim of the article is mathematical modelling of the carbonation process that has been based on results of research conducted both in accelerated and natural conditions. The article covers short characteristic of carbonation, its processes and effects. Also critical review of articles that concern carbonation mathematical models was included in the paper. Assuming the self-terminating nature of carbonation the hyperbolic model of carbonation was formulated. Such a model describes the carbonation progress as the process unlimited in time but with the restricted range in concrete depth that is limited by the value of a model asymptote. Presented results cover research on carbonation of concrete with a different water-cement ratio and different types of binders and duration times of early curing. Investigations have been conducted as accelerated (1% concentration of CO2) as well as in long-term exposures in natural conditions. The obtained results confirmed statistically that hyperbolic model is a well-founded approach when the modelling concrete carbonation process is concerned.
Inne
System-identifier
WUT586a318f9613488a9e827956c7ebae38
CrossrefMetadata from Crossref logo
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