Effect of the Mechanical Load on the Carbonation of Concrete: A Review of the Underlying Mechanisms, Test Methods, and Results

Zhiyuan Liu; Philip Van den Heede; Nele De Belie

doi:10.3390/ma14164407

Effect of the Mechanical Load on the Carbonation of Concrete: A Review of the Underlying Mechanisms, Test Methods, and Results

Materials (Basel). 2021 Aug 6;14(16):4407. doi: 10.3390/ma14164407.

Authors

Zhiyuan Liu¹, Philip Van den Heede¹, Nele De Belie¹

Affiliation

¹ Magnel-Vandepitte Laboratory for Structural Engineering and Building Materials, Ghent University, 9052 Ghent, Belgium.

Abstract

As one of the major causes of concrete deterioration, the carbonation of concrete has been widely investigated over recent decades. In recent years, the effect of mechanical load on carbonation has started to attract more attention. The load-induced variations in crack pattern and pore structure have a significant influence on CO₂ transport which determines the carbonation rate. With different types of load, the number, orientation, and position of the induced cracks can be different, which will lead to different carbonation patterns. In this review paper, the carbonation in cracked and stress-damaged concrete is discussed first. Then, literature about the effect of sustained load during carbonation is compared in terms of load type and load level. Finally, the advantages and disadvantages of possible test methods for investigating the effect of sustained load on carbonation are discussed with respect to loading devices, load compensation, and specimen size.

Keywords: carbonation; concrete; crack; loading frame; mechanical load.

Publication types

Review

Abstract

Publication types

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