Model for practical carbonation depth prediction for high volume fly ash concrete and recycled aggregate concrete

Abstract The reuse of industrial residue streams such as fly ash (FA) or waste materials such as recycled concrete aggregate (RCA) can be beneficial both from an economic and an ecological point of view. Extensive research, investigating different properties of these concrete types, has been carried out so far. However, durability remains a key property ensuring sustainable application of these materials in the construction sector that still needs more research to be fully understood. The main objective of this study was to evaluate the application of widely used models for carbonation depth prediction—defined for ordinary Portland cement concrete with natural aggregate (NAC)—to high volume FA concrete (HVFAC) and recycled aggregate concrete (RAC). The research presented in this paper was conducted in two steps. First, an experimental programme was designed to provide better understanding of the influence of different CO2 concentrations on the carbonation process kinetics in HVFAC, RAC and NAC. This was performed using accelerated carbonation tests (CO2 concentrations of 1%, 2%, 4% and 16%) and natural carbonation tests (duration 21 and 48 months). Furthermore, a database of previously published results of HVFAC and NAC carbonation depths was made in order to analyse the application of carbonation depth prediction defined by Tuutti and given in the fib Model Code 2010. It was shown that the existing models, providing the relationship between accelerated test results and natural carbonation depth, are applicable to NAC and RAC but not to HVFAC. Modifications of the above mentioned models were proposed in order to enable a more accurate and reliable prediction of the HVFAC carbonation depth under natural exposure conditions.

[1]  Marta Castellote,et al.  Chemical changes and phase analysis of OPC pastes carbonated at different CO2 concentrations , 2009 .

[2]  M. Cheyrezy,et al.  Concrete carbonation tests in natural and accelerated conditions , 2003 .

[3]  G. Moriconi.  Recyclable materials in concrete technology : sustainability and durability , 2009 .

[4]  Feng Xing,et al.  Electrochemical impedance measurement and modeling analysis of the carbonation behavior for cementititous materials , 2014 .

[5]  V. M. Malhotra,et al.  Superplasticized Fly Ash Concrete for Structural Applications , 1986 .

[6]  Jeffrey J. Thomas,et al.  Effects of Decalcification on the Microstructure and Surface Area of Cement and Tricalcium Silicate Pastes | NIST , 2004 .

[7]  Maurizio Taliano,et al.  Comparison of carbonation depths measured on in-field exposed existing r.c. structures with predictions made using fib-Model Code 2010 , 2013 .

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

[9]  J.H.M. Visser,et al.  Influence of the carbon dioxide concentration on the resistance to carbonation of concrete , 2014 .

[10]  P. Helene,et al.  Durability of concrete mixedwith fine recycled aggregates , 2007 .

[11]  Peiyu Yan,et al.  Natural and accelerated carbonation of concrete containing fly ash and GGBS after different initial curing period , 2012 .

[12]  C. Atiş.  ACCELERATED CARBONATION AND TESTING OF CONCRETE MADE WITH FLY ASH , 2003 .

[13]  Moray D. Newlands,et al.  Experience of using the prTS 12390-12 accelerated carbonation test to assess the relative performance of concrete , 2012 .

[14]  Jelena Dragaš,et al.  Environmental assessment of green concretes for structural use , 2017 .

[15]  Ravindra K. Dhir,et al.  Carbonation behaviour of recycled aggregate concrete , 2015 .

[16]  A. Sellier,et al.  Dependency of C–S–H carbonation rate on CO2 pressure to explain transition from accelerated tests to natural carbonation , 2010 .

[17]  Jun Liu,et al.  Degradation of fly ash concrete under the coupled effect of carbonation and chloride aerosol ingress , 2016 .

[18]  Jianzhuang Xiao,et al.  Prediction model of carbonation depth for recycled aggregate concrete , 2018 .

[19]  Jianzhuang Xiao,et al.  On carbonation behavior of recycled aggregate concrete , 2012 .

[20]  S. Wong,et al.  Carbonation of Concrete Containing Mineral Admixtures , 2003 .

[21]  A. Katz.  Properties of concrete made with recycled aggregate from partially hydrated old concrete , 2003 .

[22]  N. BouzoubaâN. Bouzoubaâ,et al.  Carbonation of fly ash concrete: laboratory and field data , 2010 .

[23]  A. Aït‐Mokhtar,et al.  Accelerated carbonation of concrete with high content of mineral additions: Effect of interactions between hydration and drying , 2013 .

[24]  A. Leemann,et al.  Carbonation of concrete: the role of CO2 concentration, relative humidity and CO2 buffer capacity , 2017 .

[25]  C. Poon,et al.  Long-term mechanical and durability properties of recycled aggregate concrete prepared with the incorporation of fly ash , 2013 .

[26]  Vivian W Y Tam,et al.  Assessing relationships among properties of demolished concrete, recycled aggregate and recycled aggregate concrete using regression analysis. , 2008, Journal of hazardous materials.

[27]  J. Brito,et al.  Properties and composition of recycled aggregates from construction and demolition waste suitable for concrete production , 2014 .

[28]  K. Scrivener,et al.  Eco-efficient cements: Potential economically viable solutions for a low-CO2 cement-based materials industry , 2018, Cement and Concrete Research.

[29]  Renato Vitaliani,et al.  The carbonation of concrete and the mechanism of moisture, heat and carbon dioxide flow through porous materials , 1993 .

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

[31]  S. Marinković,et al.  Flexural behavior of reinforced recycled aggregate concrete beams under short-term loading , 2013 .

[32]  S. Tangtermsirikul,et al.  A study on carbonation depth prediction for fly ash concrete , 2006 .

[33]  Michael D.A. Thomas,et al.  Carbonation of Fly Ash Concrete , 1992, SP-192: 2000 Canmet/ACI Conference on Durability of Concrete.

[34]  Qingtao Li,et al.  Effects of micro-environmental climate on the carbonation depth and the pH value in fly ash concrete , 2018 .

[35]  José Luis Duarte Ribeiro,et al.  Modeling of mechanical properties and durability of recycled aggregate concretes , 2012 .

[36]  K. Sisomphon,et al.  Carbonation rates of concretes containing high volume of pozzolanic materials , 2007 .

[37]  Stephen O. Ekolu,et al.  Model for practical prediction of natural carbonation in reinforced concrete: Part 1-formulation , 2018 .

[38]  Patrick Dangla,et al.  Investigation of the Carbonation Front Shape on Cementitious Materials: Effects of the Chemical Kinetics , 2007 .

[39]  V. Papadakis.  Effect of supplementary cementing materials on concrete resistance against carbonation and chloride ingress , 2000 .

[40]  Feng Xing,et al.  Evaluating the effect of external and internal factors on carbonation of existing concrete building structures , 2018 .

[41]  K. Tuutti.  Corrosion of steel in concrete , 1982 .

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

[43]  Feng Xing,et al.  Experimental study on effects of CO2 concentrations on concrete carbonation and diffusion mechanisms , 2015 .

[44]  E. I. Moreno,et al.  Durability Indicators in High Absorption Recycled Aggregate Concrete , 2015 .

[45]  C. Andrade,et al.  Assessment of the protective effect of carbonation on portlandite crystals , 2015 .

[46]  Gilles Escadeillas,et al.  Service life of metakaolin-based concrete exposed to carbonation: Comparison with blended cement containing fly ash, blast furnace slag and limestone filler , 2017 .

[47]  Chi Sun Poon,et al.  Enhancing the durability properties of concrete prepared with coarse recycled aggregate , 2012 .

[48]  Michael N. Fardis,et al.  A reaction engineering approach to the problem of concrete carbonation , 1989 .

[49]  A. B. Ribeiro,et al.  A contribution to the development of performance-related design methods , 2003 .