A mathematical model for predicting the carbon sequestration potential of ordinary portland cement (OPC) concrete

Abstract A simple mathematical model that calculates the theoretical carbon sequestration potential of exposed ordinary portland cement (OPC) concrete is presented, validated, and implemented herein. OPC concrete sequesters non-trivial amounts of carbon dioxide (CO2) via carbonation – a chemical reaction between cement paste and atmospheric CO2. Formulated by the reaction chemistries of cement hydration and carbonation, the model accounts for cement type and content, exposure, time, and type and quantity of supplementary cementitious materials (SCMs). Once validated with data from literature, the model is implemented to investigate the effect of these factors and the influence of compressive strength and geometry, namely surface-area-to-volume (SA/V) ratio, on total carbon sequestration (kg CO2) of exposed concrete elements. Results demonstrate that (a) low tetracalcium aluminoferrite (C4AF) cements, (b) compressive strength, (c) high CO2 exposure, (d) no SCMs, (e) time, (f) high SA/V ratios, and (g) indoor environments enhance the in situ carbon sequestration of exposed OPC concrete.

[1]  Keun-Hyeok Yang,et al.  Effect of supplementary cementitious materials on reduction of CO2 emissions from concrete , 2015 .

[2]  Arpad Horvath,et al.  Life-Cycle Environmental Effects of an Office Building , 2003 .

[3]  Michael N. Fardis,et al.  FUNDAMENTAL MODELING AND EXPERIMENTAL INVESTIGATION OF CONCRETE CARBONATION , 1991 .

[4]  B. Lagerblad.  Carbon Dioxide Uptake during Concrete Life Cycle - State of the Art , 2005 .

[5]  K. Van Balen,et al.  Carbonation reaction of lime, kinetics at ambient temperature , 2005 .

[6]  B. Johannesson,et al.  Microstructural changes caused by carbonation of cement mortar , 2001 .

[7]  Warda Ashraf,et al.  Carbonation of cement-based materials: Challenges and opportunities , 2016 .

[8]  D. Milton,et al.  Risk of indoor airborne infection transmission estimated from carbon dioxide concentration. , 2003, Indoor air.

[9]  Francis Gerard Collins,et al.  Inclusion of carbonation during the life cycle of built and recycled concrete: influence on their carbon footprint , 2010 .

[10]  Víctor Yepes,et al.  Cost and CO2 emission optimization of precast–prestressed concrete U-beam road bridges by a hybrid glowworm swarm algorithm , 2015 .

[11]  Han-Seung Lee,et al.  Life cycle CO2 assessment method for concrete using CO2 balance and suggestion to decrease LCCO2 of concrete in South-Korean apartment , 2013 .

[12]  L. Price,et al.  CARBON DIOXIDE EMISSIONS FROM THE GLOBAL CEMENT INDUSTRY , 2001 .

[13]  D. Northwood,et al.  Durability of concrete—accelerated carbonation and weathering studies , 1999 .

[14]  G. Villain,et al.  Gammadensimetry : A method to determine drying and carbonation profiles in concrete , 2006 .

[15]  Alexander Steffens,et al.  Modeling carbonation for corrosion risk prediction of concrete structures , 2002 .

[16]  Claus Pade,et al.  The CO2 Uptake of Concrete in a 100 Year Perspective , 2007 .

[17]  Carmen Andrade,et al.  Sequestration of CO2 by concrete carbonation. , 2010, Environmental science & technology.

[18]  T. Takebe,et al.  Decomposition of synthesized ettringite by carbonation , 1992 .

[19]  Julian Alcala,et al.  Life cycle greenhouse gas emissions of blended cement concrete including carbonation and durability , 2013, The International Journal of Life Cycle Assessment.

[20]  Bruno Peuportier,et al.  Life cycle assessment applied to the comparative evaluation of single family houses in the French context , 2001 .

[21]  Appu Haapio,et al.  A critical review of building environmental assessment tools , 2008 .

[22]  Y. Shao,et al.  Mathematical modeling of CO2 uptake by concrete during accelerated carbonation curing , 2015 .

[23]  Ravi Prakash,et al.  Life cycle energy analysis of buildings: An overview , 2010 .

[24]  Ignacio Zabalza Bribián,et al.  Life cycle assessment in buildings: State-of-the-art and simplified LCA methodology as a complement for building certification , 2009 .

[25]  J. Brito,et al.  An overview on concrete carbonation in the context of eco-efficient construction: Evaluation, use of SCMs and/or RAC , 2012 .

[26]  Tatiana García-Segura,et al.  Optimization of concrete I-beams using a new hybrid glowworm swarm algorithm , 2014 .

[27]  Michael D. Lepech,et al.  Application of life-cycle assessment to early stage building design for reduced embodied environmental impacts , 2013 .

[28]  Michael Böhm,et al.  Competition of several carbonation reactions in concrete: a parametric study , 2008 .

[29]  Ahmed Loukili,et al.  Predicting Ca(OH)2 content and chemical shrinkage of hydrating cement pastes using analytical approach , 2004 .

[30]  Han-Seung Lee,et al.  A model for predicting the carbonation depth of concrete containing low-calcium fly ash , 2009 .

[31]  Fernando A. Branco,et al.  Statistical analysis of the carbonation coefficient in open air concrete structures , 2012 .

[32]  Linhua Jiang,et al.  A model for predicting carbonation of high-volume fly ash concrete , 2000 .

[33]  Luisa F. Cabeza,et al.  Life cycle assessment (LCA) and life cycle energy analysis (LCEA) of buildings and the building sector: A review , 2014 .

[34]  Gillian Frances Menzies,et al.  Life-Cycle Assessment and the Environmental Impact of Buildings: A Review , 2009 .

[35]  Guillaume Habert,et al.  Carbonation kinetics of a bed of recycled concrete aggregates: A laboratory study on model materials , 2013 .

[36]  Keun-Hyeok Yang,et al.  Carbonation and CO2 uptake of concrete , 2014 .

[37]  Michael N. Fardis,et al.  Experimental investigation and mathematical modeling of the concrete carbonation problem , 1991 .