Life Cycle Assessment of CO₂ Emission of Concrete Considering Carbonation and Structural Element Types

Abstract:

Concrete industry is the main contributor of CO₂ emission, and abundant studies were done for evaluating life cycle CO₂ during production stage, construction stage, and use stage. The uptake of CO₂ due to carbonation in service life is not detailed considered. Furthermore, the uptake of CO₂ in demolition stage and the influences of structural element types on CO₂ uptake performance are also not detailed considered. To overcome the weak points of current study, this paper proposed a numerical procedure about life cycle assessment of CO₂ emission of concrete considering carbonation and structural element types. The CO₂ emission and uptake in production stage, construction stage, use stage, and demolition stage are calculated. The influences of structural element types, shapes, and sizes on CO₂ uptake performance are clarified. For concrete structures with different structural types, such as frame structures and shear-wall structures, the relative ratios for different structural element are different, hence the CO₂ uptake ability are also different.

• Periodical: Key Engineering Materials (Volume 730)
• Pages: 375-379
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.730.375
• Online since: February 2017
• Authors: Li Na Zhang*, Feng Chen Li, Xiang Yu
• Keywords: Carbonation, CO₂ Emission, CO₂ Uptake, Structural Element Types

References

[1] E. Benhelal, G. Zahedi, E. Shamsaei, et al., Global strategies and potentials to curb CO2 emissions in cement industry, J. Clean. Prod. 51 (2013) 142-161.

DOI: 10.1016/j.jclepro.2012.10.049

[2] C. Frank, Inclusion of carbonation during the life cycle of built and recycled concrete: influence on their carbon footprint, Int. J. Life Cycle Assess, 15(6) (2010) 549-556.

DOI: 10.1007/s11367-010-0191-4

[3] Korea LCI Database Information Network, http: /www. edp. or. kr/, (2016).

[4] Japan Society of Civil Engineers, http: /www. jsc, (2016).

[5] G. S. Tatiana, et al., Life cycle greenhouse gas emissions of blended cement concrete including carbonation and durability, Int. J. Life Cycle Assess, 19(1) (2014) 3-12.

DOI: 10.1007/s11367-013-0614-0

[6] A. Dodoo, L. GustavssonL., et al., Carbon implications of end-of-life management of building materials, Resour. Conserv. Recy. 53(5) (2009) 276-286.

[7] B. Lagerblad, Carbon dioxide uptake during concrete life-cycle: State of the art, Swedish Cement and Concrete Research Institute, Stockholm, (2005).

[8] M. Fomento, EHE-08; Code of Structural Concrete, M. Fomento, Madrid, Spain, (2008).