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A refined model of concrete carbonation by coupling of multi-factors
Southeast University, Nanjing.
Southeast University, Nanjing.
Southeast University, Nanjing.
Southeast University, Nanjing.
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2016 (English)In: IABSE CONGRESS, STOCKHOLM, 2016: Challenges in Design and Construction of an Innovativeand Sustainable Built Environment / [ed] ennart Elfgren, Johan Jonsson, Mats Karlsson, Lahja Rydberg-Forssbeck and Britt Sigfrid, H - 8093 Zürich, Switzerland, 2016, 1198-1206 p.Conference paper, Published paper (Refereed)
Abstract [en]

Studies on carbonation of concrete play an important role in accurately predicting the service life. However, most research work on carbonation of concrete was carried out in qualitative ways and seldom in quantitative ways. In this paper, based on conservation of mass of C3S(s), C2S(s), CSH(s), CH(s), CH(aq), CO2(aq) and CO2(g) and one-dimensional diffusion and reaction equation, a refined mathematical model of concrete carbonation composed of a series of partial differential equations (PDEs) was built. Corresponding MATLAB codes were developed with calculus of differences to solve the mathematical model of concrete carbonation. The results of the mathematical models in this paper agree very well with measurements, which show that this model can be used to accurately predict concrete carbonation as well as remaining service life of concrete bridges and other concrete structures

Place, publisher, year, edition, pages
H - 8093 Zürich, Switzerland, 2016. 1198-1206 p.
Series
IABSE Congress Reports
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-63557Scopus ID: 2-s2.0-85018959139ISBN: 978-3-85748-144-4 (print)OAI: oai:DiVA.org:ltu-63557DiVA: diva2:1098942
Conference
9th IABSE Congress, Stockholm 2016, September 21-23
Available from: 2017-05-29 Created: 2017-05-29 Last updated: 2017-11-24Bibliographically approved

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Ohlsson, Ulf

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  • apa
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Output format
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