Effect of relative humidity and air permeability on prediction of the rate of carbonation of concrete
Abstract
The effect of relative humidity on both air permeability and rate of carbonation is investigated. Descriptive models, based on data from an accelerated carbonation test, were developed to quantify the effects of the relative humidity and the air permeability on the rate of carbonation. The relationships between the rate of carbonation and physical properties, such as the permeation properties and compressive strength were established. It was found that the permeation measurements should only be used to estimate the likely rate of carbonation when the relative humidity of the concrete specimen is known.
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Most previous studies suggested an optimal relative humidity between 50% and 70% for gas-solid carbonation of RCA at ambient temperature.
“Because carbonation reactions hardly take place at low moisture content, most previous studies suggested an optimal RH ranging between 50% and 70% for gas-solid carbonation at ambient temperature [19,86,93,94].”
From An overview of utilizing CO2 for accelerated carbonation treatment in the concrete industry (2022) · cites this paper as [93]
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- Authors
- Russell, D., Basheer, P. A. M., Rankin, G. I. B., & Long, A. E.
- Affiliations
- Kirk McClure Morton Consulting Engineers Belfast, Northern Ireland
- School of Civil Engineering, The Queen's University of Belfast Northern Ireland
- Queen's University Belfast (GB)
- Venue
- Proceedings of the Institution of Civil Engineers - Structures and Buildings
- Publisher
- Emerald
- Published
- 2001-08
- Volume
- 146
- Issue
- 3
- Pages
- 319-326
- ISSN
- 0965-0911 (ISSN-L)
- 1751-7702
- OpenAlex
- W4244951493
- Cited by
- 91
- References
- 8
- Citations by year
- 2026: 4 · 2025: 3 · 2024: 5 · 2023: 6 · 2022: 6 · 2021: 9 · 2020: 11 · 2019: 6 · 2018: 3 · 2017: 8 · 2016: 6 · 2015: 6 · 2014: 3 · 2013: 2 · 2012: 2
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Proceedings of the Institution of Civil Engineers - Structures and Buildings (publishedVersion)
- Research Portal (Queen's University Belfast) (submittedVersion)
- Topics
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete Corrosion and Durability
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete Properties and Behavior
- Keywords
- concrete carbonation, relative humidity, air permeability, accelerated carbonation test, permeation properties, compressive strength, concrete durability
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